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Home My WebLink About20080726.tiff December 2007 • Appendix D Noise Study • • Page 52 of 55 Fort Saint Vrain Combustion Turbine Installation 2008-0726 Weld County Use By Special Review Permit Application • A ... ." AI D. L. ADAMS ASSOCIATES, INC. A Consultants in Acoustics and Performing Arts Technologies A November 16, 2007 Mr. Randy Larson XCEL Energy 550 15`h St. Denver, CO 80202 RE: Fort St. Vrain Station (DLAA Reference No. 7964) Ambient Sound Level and Unit 5/6 Assessment Report Dear Randy: Sound levels were measured around the Fort St. Vrain power plant in Weld County, Colorado. Fort St. Vrain is a natural gas-fired combined cycle plant with three gas-combustion turbines. Two of the three gas-combustion turbines operated during our measurements. The center unit, • Unit 3, was shut down for maintenance. Sound levels were measured from Wednesday, October 31, 2007, to Friday, November 2, 2007. The impact of the two proposed gas combustion turbines on the existing ambient sound levels were also assessed. This report summarizes our measurements and findings. Test Procedure Ambient sound levels were measured for 15 minute durations (unless noted otherwise) at five locations on two separate days. Ambient sound levels were measured continuously at two of the five locations. During the test period, Unit 3 was shut down for maintenance. Short Duration Measurements Short duration measurements (20 minutes or less) were taken with a Larson-Davis Model 831 (S/N 0001349) Type I sound level meter on"slow"response, together with a PCB Model 377B20 (S/N 105259) 1z" random incidence microphone. Calibration was checked before and after each series of measurements with a Larson-Davis CAL200 (S/N 5323)Acoustic Calibrator. A windscreen covered the microphone during all measurements. The sound meter was placed on a tripod so that the microphone was 5' above the ground for each measurement. The calibration of the sound level meter and calibrator has been checked and certified by the manufacturer within the manufacturer's recommended time period. The calibration certificates are included as Attachment C. • 1701 BOULDER STREET • DENVER,COLORADO 80211 303/455-1900 • FAX 303/455-9187 www.dlaa.com • denver@dlaa.com • Mr. Randy Larson Fort St. Vrain Station Report November 16, 2007 Page 2 Sound levels in closer proximity to the existing plant equipment were measured at four locations. These measurements were used to assess the impact of the two proposed new units. Sound levels were measured with one-third octave band filters, but only the overall A-weighted sound level data is reported herein. The one-third octave band data and original printouts of each test are available at your request and will be retained in our files. Long term measurements A continuous series of one-hour duration A-weighted sound levels were measured using two Larson Davis Model 820 sound level meters that meet the American National Standard Institute (ANSI) requirements for Type 1 sound level meters. The equipment used at each location is listed below. Position 1 Larson Davis Model 820 (S/N 1303) Type 1 sound level meter Larson Davis Model 2560 (S/N 2639) ''/2" random incidence microphone • Position 2 Larson Davis Model 820 (S/N 0768) Type 1 sound level meter Larson Davis Model 2560 (S/N 2298) 'A" random incidence microphone The detector of the meters was set for "slow" response and A-weighting was applied. The sound meters were placed on tripods so that the microphones were 5' above the ground for each measurement. Windscreens were used on each microphone. The sound level meters were calibrated before and checked after the measurements with the Larson Davis CAL200 Acoustic Calibrator(S/N 2436). The calibration of the sound level meter and calibrator has been checked and certified by the manufacturer within the manufacturer's recommended time period. The calibration certificates are attached as Attachment C. • • Mr. Randy Larson Fort St. Vrain Station Report November 16, 2007 Page 3 Measurement Positions The five measurement positions (Positions 1, 2, 6, 7, and 9) were selected to be representative locations around the perimeter of the Fort St. Vrain property. The latitude and longitude of each measurement position was measured with a GPS receiver. The coordinates are available upon request. Please refer to Figure 1 for an aerial photo showing the measurement positions. Measurements were not made at Positions la, 2a, and 7a. These positions are on the property line and will be used later in our analysis. Positions 3,4, and 5 are on the Fort St. Vrain Station property and closer to the plant. Sound from the plant is dominant over the other background sounds at these positions, so measurements here were useful in our analysis. Descriptions of Measurement Positions Position 1 Near the SE corner of the Fort St. Vrain property. Approximately 3,450' from the existing Unit 4 turbine. Positions la • On the property line at the SE corner of the Fort St. Vrain Station property. Approximately 4,450' from the existing Unit 4 turbine. Ambient sound levels were not measured here due to the strong influence of traffic noise relative to the plant noise. Position 2 Due east of the north cooling water ponds. West of the South Platte River. Approximately 2300' from the existing Unit 4 turbine. Position 2a On the property line due east of the north cooling water ponds. East of the South Platte River. Approximately 3,350' from the existing Unit 4 turbine. Ambient sound levels were not measured here due to the difficulty of access. Position 3 Close measurement of plant noise used for prediction purposes. Approximately 900' from Unit 4 turbine, east of cooling towers. Position 4 Close measurement of plant noise used for prediction purposes. Approximately 1650' from Unit 4 turbine,east of cooling towers Position 5 Close measurement of plant noise used for prediction purposes. Approximately 365' southeast of • Unit 4 turbine. • Mr. Randy Larson Fort St. Vrain Station Report November 16, 2007 Page 4 Position 6 North of the power plant near the property line. South of the St. Vrain River(and south of the CR 19%z bridge over the river). Approximately 5125' from the existing Unit 4 turbine. Position 7 Northwest of the power plant. West of the St. Vrain River. Approximately 5850' from the existing Unit 4 turbine. Position 7a On the property line due northwest of the power plant, at the St. Vrain River. Approximately 4,400' from the existing Unit 4 turbine. Ambient sound levels were not measured here due to the difficulty of access. Position 9 On the southeast corner of the intersection between Weld County Rd. 34 and 19, near the Kerr McKee tanks, and near the property line. Approximately 5575' from the existing Unit 4 turbine. Position 10 • Close measurement of plant noise used for prediction purposes. Approximately 420' west of the cooling towers. Weather Temperature, wind speed, and wind direction were observed and noted. Wind speed was measured with a Dwyer handheld wind meter. These observations are summarized in Attachment A. No short-term sound level measurements were made at times when the wind speed was greater than 8 mph. Hourly temperature, relative humidity, wind speed, and wind direction data was also obtained from the "CW1720"weather station in Mead, Colorado, through www.AnythingWeather.com, and is included in Attachment B. This weather station is approximately 6.75 miles west of the center of Fort St. Vrain Station. We do not take any responsibility for the accuracy of this data and it is provided as a general reference. The intent of this data is to give a general indication of weather in the area, as local conditions can certainly vary from this. Wind speeds were generally mild during from the afternoon of October 31 to November 2. • • Mr. Randy Larson Fort St. Vrain Station Report November 16, 2007 Page 5 Test Results The short-term A-weighted sound levels are summarized in Tablel below. One-third octave band data is available for all of the short-term measurements at your request. The long-term A-weighted sound levels measured at Positions 1 and 2 are shown in Graphs 1 and 2 below. The graphs show the hourly LEQ and L90 sound levels as well as the logarithmic average L90 that was calculated for the entire two day duration. The megawatt output of the power plant is also plotted on the graphs. The Leg is a type of average, and is defined as the sound level, when continuous during the measurement period, that would have the same sound energy as the varying sound present during the same period. The L90 is the 90% Exceedence Level, or the sound pressure level that was exceeded 90% of the time during the measurement period. For example, the hourly L90 is the sound level that is exceeded 90% (54 minutes) of each measured hour. For a fifteen minute measurement, this would represent the sound level that is exceeded for 13.5 minutes of the test duration. The L90 is • an industry standard parameter commonly used to assess the steady sound level without the effect of occasional, short-duration, intrusive events such as aircraft flyovers, cars passing, wind gusts, etc. The power plant is a relatively steady sound source. Other background sound sources in the area, such as aircraft flying over and trucks passing, are intermittent. For this reason, the LY0 is more representative of the power plant noise than the Leg. However, even the L90 may overstate the plant noise when wind is causing rustling leaves. The Leg is more representative of the average overall ambient noise level at each location, which includes intermittent sounds. At Position 1, the L90 varies from 30 to 45 dBA and averages 37 dBA. At Position 2, the L90 varies from 35 to 48 dBA and averages 42 dBA • • Mr. Randy Larson Fort St. Vrain Station Report November 16, 2007 Page 6 Position 1: October 31 - November 2, 2007 Ft. St.Vrain Station 70 I I I I ( I ; I 300 65 �`\ f ! ! 3 I i ( r__, ____ i I - 250 � I 50 i 1• I a C I I i I I - 200 40 • a. Ii •, t ♦ r ♦ 1 r N 35 : 150 rn 30 . _ _... I a I 7 25 i � I j I - 100 in 20 Legend i Leq • 15 ! I Avg Leq (-13.1 (IBA)_-- — 10 - 1(90) 50 Avg L90 (37.3 dBA) 5 FSV Plant output(MW) 0 ' 1 t r ! I 1 I 0 E n K. E. E E s o A 8 0 0 0 0 0 0 a id g P to g IV o Wednesday Thursday Friday Day/Time Graph 1 : Long-term sound levels at Position 1 • • Mr. Randy Larson Fort St. Vrain Station Report November 16, 2007 Page 7 Position 2: October 31 - November 2, 2007 Ft. St.Vrain Station 70 . 300 65 v� ---.________ I+ .^L 60 ' f 55 ' 77 1 250 m 50 , L _� 200 a • w a0 1 a . i _ 3 w 35 : 150f m 30 ' ro o. 025 ! 100 rn 20 : Legend _ Leg • is : -"-" Avg Leq (45.7 MA) - 10 -• L190) _ 50 Avg L90 442.0 (IBA) 5 FSV Plant output(MIN( - 0 � — . . . . . . . . I . . . . . I . . . . 0 E gp m E E n E E E. o 0 g 8 o B ra B lV O r`1 8 fV O Wednesday Thursday Friday Day/Time Graph 2: Long-term sound levels at Position 2 There is a larger difference between the LEQ and L90 at Position 1 than at Position 2 due to sound from traffic to the south of Position 1. The sound levels from the plant can vary widely at the property line due to complex atmospheric conditions including wind speed,wind direction, temperature lapse or inversions. Wind also creates the sound of rustling leaves and grass. There is no clear correlation between the plant output and the sound levels at Positions 1 and 2, which indicates that the variations in wind and atmospheric conditions influence the sound levels more than the plant output. • Mr. Randy Larson Fort St. Vrain Station Report November 16, 2007 Page 8 Table 1: Short-term sound levels at Fort St. Vrain Station Test File Measurement Date/ LEQ L90 Location Start Time (dBA) (dBA) FSV.009 Position 1 10/31/07 40 32 3:26 p.m. FSVa.012 Position 1 11/2/07 45 33 3:24 p.m. FSV.002 Position 2 10/31/07 43 39 1:34 p.m. FSVa.011 Position 2 11/2/07 45 37 2:40 p.m. FSV.010 Position 6 10/31/07 47 36 • 3:58 p.m. FSVa.003 Position 6 11/2/07 52 35 1:11 p.m. FSV.011 Position? 10/31/07 46 34 4:25 p.m. FSVa.004 Position 7 11/2/07 41 34 1:34 p.m. FSV.012 Position 9 10/31/07 64 38 4:54 p.m. FSVa.002 Position 9 11/2/07 60 35 12:43 p.m. The sound levels at Position 9 do not show the noise levels from the plant since it was not audible over the background sound. Plant noise is less than the L90 levels shown. Combustion turbine Units 2 and 4 operated during the measurements. If existing Unit 3 were to operate simultaneously with Units 2 and 4, then the maximum increase should be 2 dBA. Because of the influence of the cooling tower and the fact that Unit 3 is shielded by Unit 4, the expected increase is less than 1 dB, or essentially negligible. • • Mr. Randy Larson Fort St. Vrain Station Report November 16, 2007 Page 9 Ambient Sound Sources -Subjective Observations The following is a summary of my subjective observations of sound from the plant and from other background sources at each measurement. Position 1 Can faintly hear sound from Fort St. Vrain plant operation when the wind is calm. Sound Sources • Aircraft flyovers (intermittent) • Rustling leaves (intermittent) • Traffic on Hwy 34 (intermittent) • Fort St. Vrain plant operation Position 2 • Can hear clearly hear sound from Fort St. Vrain plant operation most of the time. At times, the plant sound is the dominant sound. Sound Sources • Fort St. Vrain plant operation ▪ Can hear occasional Paging system from the plant. • Aircraft flyovers (intermittent) • Rustling leaves (intermittent) • Traffic on Weld County Rd. 19/ (intermittent) • River/falls to southeast • Construction activity to the southeast Position 6 Can hear sound from Fort St. Vrain plant operation when no cars are passing. Plant sound rises and falls from not audible to clearly audible. Cooling tower noise is distinguishable at times. Sound Sources • Aircraft flyovers (intermittent) • Traffic on Weld County Rd. 19% (intermittent) • Fort St. Vrain plant operation • • Rustling leaves (intermittent) • Mr. Randy Larson Fort St. Vrain Station Report November 16, 2007 Page 10 Position 7 Can hear sound from Fort St. Vrain plant operation. Plant sound rises and falls from not audible to clearly audible. Cooling tower noise is distinguishable at times. Sound Sources • Aircraft flyovers (intermittent) • Traffic on Weld County Rd. 19% and Hwy. 34 (intermittent) • Fort St. Vrain plant operation • Rustling leaves (intermittent) Position 9 Sound from Fort St. Vrain Station is not audible or very faintly audible when no traffic is in the area, and when there is no wind. Sound Sources • Traffic on Hwy 34 and Weld County Rd. 19 (intermittent), many trucks • Aircraft flyovers (intermittent) • Rustling leaves (intermittent) Mr. Randy Larson Fort St. Vrain Station Report November 16, 2007 Page 11 Assessment of Sound From the Proposed Units 5 and 6 We have used the close in measurements at Positions 3, 4, 5, and 10, as well as the sound levels in the General Electric far field noise level guarantee that you provided, to predict he impact of the two proposed units. We understand that the two proposed units will be similar to the three existing gas combustion turbines. They will be located in line with and directly east of the three existing units. Units 5 and 6 should have greatest impact to the north, east, and south. From the northwest to the southwest, the new turbines are shielded by the existing plant. Our"close-in"measurements, used in the assessment are shown in Table 2. These measurements were taken with durations of two minutes or less. Table 2: Short-term "close-in" sound levels at Fort St. Vrain Station Test File Measurement Date/ LEQ L90 Location Start Time (dBA) (dBA) FSV.006 Position 3 10/31/07 56 55 • 2:22 p.m. FSVa.010 Position 3 11/2/07 49 48 2:32 p.m. FSV.007 Position 4 10/31/07 49 46 2:36 p.m. FSVa.009 Position 4 11/2/07 41 40 2:25 p.m. FSV.008 Position 5 10/31/07 60 59 2:45 p.m. FSVa.008 Position 5 11/2/07 62 61 2:18 p.m. FSVa.007 Position 10 11/2/07 64 63 2:06 p.m. When the Lcq and L90 levels are close, it shows that the sound level is steady. At all four of these "close-in"positions, the plant noise is the dominant source and therefore the sound level is steady. However, even at Positions 3 and 4, you can see that the sound level varied significantly from day to day. • Mr. Randy Larson Fort St. Vrain Station Report November 16, 2007 Page 12 The General Electric far field noise level guarantee for Units 5 and 6 is 67 dBA at a distance of 400'. This was used together with the field measurements of the existing plant to predict the impact of sound levels at the property line. The predicted impact is shown in Table 3. As mentioned above, the transmission of sound at distances over one-half mile can vary greatly depending on atmospheric conditions. The predicted sound levels shown in Table 3 are based on atmospheric conditions that are favorable to sound propagation. That is, downwind with a well developed temperature inversion. In every direction from the plant, downwind conditions are assumed even though these conditions obviously cannot occur simultaneously. Table 3: Predicted sound levels at the property line (due to the plant) after the installation of Units 5 and 6 Location Existing average Existing Predicted Impact Predicted average Predicted range of plant sound Range of Units 5&6 plant sound level sound levels level (dBA) (dBA) (dBA) (dBA) (dBA) Position la 35 * 28-43 +7 42 35-49 Position 2a 39* 32-45 +6 45 38-52 Position 6 36 - +1 37 - Position 7a 37 * - +I 38 - Position9 <37 ** - +3 <40 - * Estimated from measurements at Positions 1, 2, or 7 and the distance from the plant. ** Plant noise could not be measured due to background sound levels. The plant sound levels at Positions 6 and 7 are primarily influenced by the cooling towers and the new units are shielded, so there is little predicted impact from Units 5 and 6. Position la is slightly more impacted than Position 2a because Position 2a is already elevated by noise from the cooling towers. For your reference, a change of two decibels or less is not noticeable to most people. A change of five to six decibels is clearly noticeable. A change of ten decibels is perceived by most people as "twice as loud"or"half as loud." • Mr. Randy Larson Fort St. Vrain Station Report November 16, 2007 Page 13 Noise Level Criteria Colorado Revised Statutes (CRS) 25-12-103 sets the permissible noise levels in the State of Colorado. The Fort St. Vrain site abuts the City of Milliken city limits and a residential property, so we are using the statutes limits for Residential properties as the applicable standard. CRS 25-12-103 limits the noise level 25' onto a residential property to 55 dBA during the day (7:00 a.m. to 7:00 p.m.) and 50 dBA at night(7:00 p.m. to 7:00 a.m.). During the day, noise levels may be increased by ten dBA for a period not to exceed fifteen minutes of any one-hour period. The existing Fort St. Vrain plant operates day or night at various capacities depending on demand. The new turbines may also operate during the day or night. The predicted average sound levels in Table 3 above show that the expected average levels are well below 50 dBA. The range of predicted noise levels at Position 2a shows that it will be possible for the plant noise level to reach approximately 52 dBA and exceed the state limit at certain times when all five combustion turbines are operating and the atmospheric conditions are favorable for sound propagation to the east. • Conclusions Ambient sound levels were measured to provide a baseline of the existing sound levels in the vicinity of the site. Where plant noise is clearly audible, the L90 levels are representative of the plant. At its closest point, the Fort St. Vrain property line is over one-half mile from the plant itself. At this distance, atmospheric conditions, including wind speed, wind direction, temperature inversions or lapses, and turbulence, can cause the sound level from the plant to vary as much as 20 dBA, even when the sound generated by the plant is steady. Even relatively small atmospheric changes can affect the transmission of sound. This is apparent when listening at these locations. One can hear the sound rise and fall significantly even when no obvious changes in the wind speed or direction occur. The two days of measurements at Positions 1 and 2 show variations of the L90 levels of 13 and 15 dBA, respectively. This is partly due to changes in atmospheric conditions,but also due to the variable noise of other ambient sources such as rustling leaves. The variation of plant output had no correlation to noise levels at the property line. The property line noise levels are much more dependent on atmospheric conditions. The property line noise levels are not expected to vary from the measured levels when three combustion turbines are operating instead of two. • Mr. Randy Larson Fort St. Vrain Station Report November 16, 2007 Page 14 Existing ambient sound levels at the property line are below 50 dBA. Units 5 and 6 will have the most impact at the property line from the northeast to the south sides of the property. At Positions 1 a and 2a, the impact is predicted to be 7 and 6 dBA, respectively. While the average sound level is expected to be well below 50 dBA, it is possible that the plant noise will occasionally rise above the state limit of 50 dBA at Position 2a(east of the plant) when the atmospheric conditions are favorable to sound propagation. Please feel free to contact me if you have any questions or need additional information. Sincerely, Jeff Kwolkoski, P.E.,INCE Bd. Cert. Associate Principal • Encl: Figure 1 Attachment A- Weather observations on site Attachment B - Weather Data from Mead, CO Attachment C - Calibration certificates • • Fyy� oi t m vy `'i County-Road-23 - O E a� c z C O ..d a O' . o a` a ra — W c a .• •N �.- oc, C 0 N c O c ° 0 0 o a r`+ 0. -:: ��,— — - ---- —' -co f o a o O 0.. c a I O o ; J 5u c c rGo-HwY .� of m C „` r R ,_ 1 W o a M1 a° J O W H 40 C r O 0 ao - � o t p //U� a i �V 0- c 0 a ` 1 ci o' o o. I N u) 3 O 2 o c 8 U - CI z • • Attachment A Weather Observations Weather Log Observations made on site by Jeff Kwolkoski Wednesday October 31, 2007 1:30 p.m.: wind 0-3 mph, sunny 3:30 p.m.: wind 1-5 mph from the South (gust to 7 mph), sunny 4:35 p.m.: slight wind from S-SE sunny 4:55 p.m.: 53° F wind 0-2 mph from S, sunny Friday • November 2, 2007 12:45 p.m.: 47° F, wind 0-3 mph from N-NE, sunny, clear 12:50 p.m.: wind 1-5 mph from E-SE, sunny 1:35 p.m.: wind 4-7 mph from E, sunny 1:40 p.m.: wind 1-4 mph from E, sunny 2:15 p.m.: no wind 2:30 p.m.: 49° F, 0-2 mph wind from E, sunny 3:25 p.m.: 49° F, 0-5 mph wind from S-Se, sunny, 30% RH • • Attachment B Weather Data from CW1720 Weather Station Mead, CO (AnythingWeather.com) AnythingWeather.com Page 1 oft • • Advertisement AnythingWeather.com Takea vacation where MINIMS MUMStuAue ' Your Custom Weuthey Solution you wish for bad weather Cill Thursday,November 08,2001 11:40:08 AM(EST) MOMS We Maps Services I Store About Us Contact Us Advertisement Search using zip,city,or SEARCH state I Client Login GO *Home I Colorado I CW1120 Portland Oregon CurrentC diet ru Daily History M nehly Hut ry We Naps Flaehcar The Perfect Town? 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AnythingWeather Communications, Inc. PO Box 13845, Palm Desert, CA 92255 1-800-845-0383 Copyright 2001-2007 AnythingWeather.com • http://www.anythingweather.com/monthly.aspx?id=10571&month=10&year-2007 11/8/2007 AnythingWeather.com Page 1 oft • Advertisement AnythingWeather.Eorn Take a vacation where nt+uaoeranAEWINS '. Your Custom Weather Solution you wish for bad weather CP it Thursday,November 08,2007 11:43:09 AH(EST) Home . We Maps Services t Store About Us Contact us Advertisement search using zip,city,or I SEARCH Client Login I I GO state Home I Colorado I Cw172o Portland Oregon Currant Conditi m Daily History M nthly Hut ry Wa Naps Flashcar. The Perfect Town? CW1720, Mead, CO See What Outside Magazine Says wurw shenyVannsgmupt Elevation: 5105 feet I Latitude: 40.26N I Longitude: 105.00W County: Broomfield I Zipcode: 80542 I Network Type : APRS 0 DAILY SUMMARY:November 1,2007 © use metric traits PoAverage Temperature 46°F Fgrt land Homes Sale Max Temperature 62°F 03:46 PM Sponsored By: 1000s of Homes in Min Temperature 30°F 07:46 AM Portland Area View Max Humidity 94% 04:46 AM Pictures,Features Experts, _/ &Tours. Min Humidity 280/a 04:16 PM HealEState comiP°mand Max Dew Point 35°F 10:46 AM Min Dew Point 24°F 11:46 PM MounMax Wind Gust No Reading Acreage Rain Total No Reading Looking for acreage on Mt. Hood near Time Temp Humidity Dew Point Barometric Pressure Wind Speed Peak Gust Wind Direction Rainfall Portland,Oregon? 00:16 36°F 88% 32°F 30.21" 6 mph No Reading N No Reading wwwDrylhecreek corn 00:46 34°F 88% 31°F 30.21" 6 mph No Reading N No Reading 01:16 34°F 88% 30°F 30.20" 6 mph No Reading NNW No Reading pox 41 01:46 34°F 88% 30°F 30.19" 5 mph No Reading N No Reading neighborhood 02:16 34°F 88% 30°F 30.16" 5 mph No Reading N No Reading Map 02:46 32°F 90% 30°F 30.1]" 6 mph No Reading NNW No Reading Search by ne03:16 32°F 90% 29°F 30.18" 4 mph No Reading NW No Reading all ML Orh00d map all MLS listings in 03:46 32°F 92% 29°F 30.1]" 0 mph No Reading ENE No Reading Portland area 04:16 30°F 92% 28°F 30.17" 0 mph No Reading ENE No Reading www sit-homes.net 04:46 32°F 94% 30°F 30.17" 0 mph No Reading ENE No Reading 05:16 32°F 92% 29°F 30.18" 0 mph No Reading SSE No Reading 05:96 32°F 92% 29°F 30.17' 0 mph No Reading 55W No Reading 06:16 30°F 90% 28°F 30.17' 0 mph No Reading SSW No Reading 06:46 30°F 90% 28°F 30.17' 0 mph No Reading WNW No Reading 07:16 30°F 90% 28°F 30.17' 0 mph No Reading WNW No Reading 07:46 30°F 92% 28°F 30.17' 0 mph No Reading NNW No Reading 08:16 32°F 90% 30°F 30.18" 0 mph No Reading NW No Reading 08:46 36°F 06% 32°F 30.16" 0 mph No Reading NW No Reading 09:16 40°F 76%n 33°F 30.14" 0 mph No Reading WNW No Reading 09:46 42°F 70% 33°F 30.13" 0 mph No Reading WNW No Reading 10:16 46°F 64% 34°F 30.11" 0 mph No Reading W No Reading 10:46 50°F 58% 35°F 30.08" 0 mph No Reading WSW No Reading 11:16 52°F 50% 33°F 30.06" 0 mph No Reading N No Reading 11:46 54°F 46% 33°F 30.02" 0 mph No Reading ESE No Reading 12:16 56°F 46% 35°F 30.02" 0 mph No Reading SE No Reading 12:96 58°F 92% 34°F 29.97" 0 mph No Reading S No Reading 13:16 58°F 40% 33°F 29.95" 0 mph No Reading SSE No Reading 13:46 60°F 34% 32°F 29,92" 0 mph No Reading SSE No Reading 14:16 60°F 32% 30°F 29.91" 0 mph No Reading SSW No Reading 14:46 62°F 28% 27°F 29,90" 1 mph No Reading S No Reading 15:16 62°F 28% 29°F 29.89" 0 mph No Reading 55E No Reading 15:46 62°F 28% 29°F 29.89" 6 mph No Reading SSE No Reading 16:16 62°F 28% 28°F 29.88" 0 mph No Reading SE No Reading 16:46 62°F 30% 29°F 29,88" 0 mph No Reading 55E No Reading • 17:16 60°F 34% 30°F 29.88" 0 mph No Reading SE No Reading 17:46 58°F 36% 31°F 29.90" 0 mph No Reading SE No Reading 18:16 56°F 36 i° 28°F 29.94" 0 mph No Reading ESE No Reading http://www.anythingweather.com/monthly.aspx?id=10571&month=11&year=2007 11/8/2007 AnythingWeather.com Page 2 of 2 • 18:46 54°F 40% 29°F 29.96" 1 mph No Reading NNE No Reading 19:16 52°F 42% 30°F 29.96" 1 mph No Reading NE No Reading 19:46 52°F 42% 30°F 29.97" 0 mph No Reading NNE No Reading 20:16 52°F 44% 31°F 29.93" 3 mph No Reading N No Reading 20:46 50°F 48% 31°F 29.96' 0 mph No Reading N No Reading 21:16 46°F 56% 31°F 29.95" 0 mph No Reading WNW No Reading 21:46 48°F 54% 31°F 29.95" 0 mph No Reading NW No Reading 22:16 48°F 54% 32°F 29.95" 1 mph No Reading WNW No Reading 22:46 48°F 50% 31°F 29.93" 3 mph No Reading NW No Reading 23:16 54°F 34% 25°F 29.88" 6 mph No Reading W No Reading 23:46 48°F 38% 24°F 29.92" 1 mph No Reading NNE No Reading • Legal Disclaimer/Privacy Policy/Parental Statement Contact Us Join the Network! AnythingWeather Communications, Inc. PO Box 13845, Palm Desert, CA 92255 1-800-845-0383 Copyright 2001-2007 AnythingWeather.com • http://www.anythingweather.com/monthly.aspx?id=10571&month=11&year=2007 11/8/2007 AnythingWeather.com Page 1 of 2 • Ativ er[i5eIT¢nr AnythingWeather.com • Take a vacation where . Your Custom Wear/icr Solution you wish forbad weather TGBY100eAA5MBmun at Thursday,November 09,2007 11:93:51 AM(EST) Home WY Maps ' Services I Store About Us Contact Us advertisement Search using zip,city,or I SEARCH stare Client Login GO] .e Home I Colorado 10W1720 Portland Oregon Cunapt Conditions Daily History M nehly History Wa Maps Rashcer• The Perfect Town? See What Outside CW1720, Mead, CO Magazine Says vww.sherry trancisgmup i Elevation: 5105 feet I Latitude: 40.26N I Longitude: 105.00W County: Broomfield I Zipcode: 80542 i Network Type : APRS 0 DAILY SUMMARY:November 2,2007 © use metric units PoAverage Temperature 4O°F For land Homes Sale Max Temperature 48°F 04:16 PM Sponsored By: 1000s of Homes in Min Temperature 30°F O7:16 AM Portland Area View % 11:46 PM Pictures,Features Max Humidity 70 Experts�'� &TENr6. Min Humidity 30% 03:16 PM Reaiesiate comlPomand Max Dew Point 26°F 03:16 AM Min Dew Point 15°F 11:16 AM Mount Hood Max Wind Gust No Reading Acreage Rain Total No Reading Looking for acreage on Mt. Hood near Time Temp Humidity Dew Point Barometric Pressure Wind Speed peak Gust Wind Direction Rainfall Portland,Oregon? 00:16 48°F 40% 24°F 29,92" 0 mph No Reading NE No Reading Awe hlythecreek.com 00:46 46°F 46% 25°F 29.93" 0 mph No Reading NE No Reading 02:46 44°F 48% 25°F 29.98" 1 mph No Reading SW No Reading PDA • 03:16 42°F 52% 26°F 29.99" 2 mph No Reading N No Reading neighborhood 03:46 44°F 98% 25°F 29.99" 0 mph No Reading NNW No Reading Map 04:16 44°F 46% 24°F 30.01" 6 mph No Reading NNW No Reading Search by 04:46 40°F 48% 22°F 30.06" 15 mph No Reading N No Reading neighborhood map all MLS listings in 05:16 36°F 56% 22°F 30.16" 7 mph No Reading N No Reading Portland area 05:46 34°F 62% 22°F 30.19" 7 mph No Reading N No Reading wrvw.m-hoees.net 06:16 32°F 64% 21°F 30.25" 1 mph No Reading N No Reading 06:46 30°F 68% 20°F 30.30" 0 mph No Reading N No Reading 07:16 30°F 68% 20°F 30.33" 0 mph No Reading N No Reading 07:46 30°F 66% 20°F 30.35" 0 mph No Reading SW No Reading 08:16 34°F 62°/n 22°F 30.38" 0 mph No Reading WSW No Reading 10'.16 42°F 36% 17°F 30.34" 0 mph No Reading ESE No Reading 10:46 42°F 34/° 16°F 30.34" 1 mph No Reading ENE No Reading 11:16 44°F 32% 15°F 30.32" 0 mph No Reading E No Reading 11:46 49°F 34% 18°F 30.31" 1 mph No Reading E No Reading 12:16 46°F 34% 18°F 30.30" 2 mph No Reading ESE No Reading 12:46 46°F 34% 19°F 30.27' 0 mph No Reading 55E No Reading 13:16 46°F 341° 20°F 30.26" 0 mph No Reading E No Reading 13:46 46°F 34% 19°F 30.25" 3 mph No Reading SE No Reading 14:16 48°F 32% 19°F 30.24" 0 mph No Reading S No Reading 14:46 48°F 32% 19°F 30.24" 0 mph No Reading SE No Reading 15:16 48°F 30% 18°F 30.25' 0 mph No Reading ESE No Reading 15:46 48°F 32% 18°F 30.25" 2 mph No Reading SSE No Reading 16:16 48°F 32% 19°F 30.27" 1 mph No Reading SSE No Reading 16:46 46°F 32% 18°F 30.27' 0 mph No Reading SE No Reading 17:16 46°F 34% 19°F 30.31" 0 mph No Reading ESE No Reading 17:46 44°F 38% 20°F 30.33" 0 mph No Reading ESE No Reading 18:16 40°F 44% 19°F 30.38" 0 mph No Reading ESE No Reading 18:46 40°F 44% 20°F 30.37" 0 mph No Reading SE No Reading 19:16 40°F 44% 20°F 30.37" 0 mph No Reading SE No Reading 19:46 36°F 48% 18°F 30.41" 0 mph No Reading SE No Reading • 20:16 38°F 46% 19°F 30.39" 0 mph No Reading SE No Reading 20:46 38°F 48% 19°F 30.35" 0 mph No Reading SE No Reading 21:16 34°F 54% 19°F 30.34" 0 mph No Reading SSW No Reading http://www.anythingweather.com/monthly.aspx?id=10571&month=11&year=2007 11/8/2007 AnythingWeather.com Page 2 of 2 • 21:46 34°F 58% 20°F 30.36" 0 mph No Reading W No Reading 22:16 34°F 60% 21°F 30.35" 5 mph No Reading NNW No Reading 22:46 34°F 64% 22°F 30.35" 6 mph No Reading NNW No Reading 23:16 32°F 66% 21°F 30.34" 4 mph No Reading NW No Reading 23:46 30°F 70% 22°F 30.32" 3 mph No Reading NW No Reading • Legal Disclaimer/Privacy Policy/Parental Statement Contact Us Join the Network! AnythingWeather Communications,Inc. PO Box 13845, Palm Desert, CA 92255 1-800-845-0383 Copyright 2001-2007 AnythingWeather.com • http://www.anythingweather.com/monthly.aspx?id=10571&month=11&year=2007 11/8/2007 Attachment C Calibration Certificates - °PCB HE°TROA/C5- A PCB GROUP COMPANY Certificate of Calibration and Conformance Certificate Number 2007-93557 Instrument Model 831, Serial Number 0001349, was calibrated on 23MAY2007. The instrument meets factory specifications per Procedure D0001.8310, ANSI S1.4-1983 (R 2006) Type 1; S1.4A-1985 ; S1.43-1997 Type 1; S1.11-2004 Octave Band Class 0; S1.25-1991; IEC 61672-2002 Class 1; 60651-2001 Type 1; 60804-2000 Type 1; 61260-2001 Class 0; 61252-2002. New Instrument Date Calibrated: 23MAY2007 Calibration due: 23MAY2008 Calibration Standards Used MANUFACTURER MOCEL SERIAL NUMBER INTERVAL CAL DUE TRACEABILITY NC. Larson Davis LDSigGn2239 0099/0104 +-------- -- - Z Months ..6JAN2008 r 2.007-89317_ Reference Standards are traceable to the National Institute of Standards and Tecnnology(NIST) Calibration Environmental Conditions Temperature: 24 ° Centigrade Relative Humidity: 26 % Affirmations This Certificate attests that this instrument has been calibrated under the stated conditions with Measurement and Test Equipment (MBTE) Standards traceable to the U.S. National Institute of Standards and Technology(MST). All of the Measurement Standards have been calibrated to their manufacturers'specified accuracy/uncertainty. Evidence of traceability and accuracy is on file at Provo Engineering 8 Manufacturing Center. • An acceptable accuracy ratio between the Standard(s) and the item calibrated has been maintained. This instrument meets or exceeds the manufacturers published specification unless noted. This calibration complies with the requirements of ISO 17025 and ANSI Z540. The collective uncertainty of the Measurement Standard used does not exceed 25%of the applicable tolerance for each charactenstic calibrated unless otherwise noted. The results documented in this certificate relate only to the item(s)calibrated or tested. A one year calibration is recommended,however calibration interval assignment and adjustment are the responsibility of the end user. This certificate may not be reproduced,except in full,without the written approval of the issuer. Tested with PRM831-010863 Signed: Technician: on Harris Provo Engineering and Manufacturing Center, 1681 West 820 North, Provo, Utah 84601 Toll Free: 888.258.3222 Telephone: 716.926.8243 Fax: 716.926.8215 ISO 9001-2000 Certified _ ___ _ ....._. . . Calibration Report r „.._., ____, Microphone Model: 377320 Senal Number: 105259 Description: 1.2" Random-Incidence Microphone iii • 0I I! Calibration Data I Open Circuit Sensitivitytg:251.2 Hz: 5331 rnV'Pa Polarization Voltage. External: 0 V -25.46 dB re 1V/Pa Capacitance: 9.4 pF Temperature: 72°F (22°C) Ambient Pressure:981 mbar Relative Humidity:32% Frequency Response(0 dB(ii t 251.2 Hz) 5 — — --- -- - =--- --- • ----..--) -10 T- _— —— - _ -- —.—i --.�- Upp=CUM Random revoese of meroobone*Vs gnd covet m rsdoln ncdaU loud field '__ .. 5 4- -- *,--.- Lowy curve Preaure nsp■se as retia t.nth elccuonmc acu aWf • • • ID10 100 1000 10000 100000 Frequency(Hz) ' Freq Lower Upper Freq Lower Upper Trey Lower Upper Freq Lower Upper (Hz) (dB) (dB) (111z) (dBi (dB) (Hz) (d8) (dB) (Hz) (dB) kaF1) 20.0 -0.01 -0.01 1584.9 0.00 0.04 6683.4 0.02 0.61 - 25.1 0.01 0.01 1678.8 0-01 0.06 7079.5 0.00 0.64 - - 31.6 0.01 0.01 1778.3 0.0i 0.07 7448.9 -0.06 0.65 - 39.8 0.01 0.01 1883.7 0.01 0.09 79433 -0.13 0.70 - - 50.: 0.01 0.01 1995.3 0.01 0.10 8414.0 -0.23 0.78 - - 63.1 0.01 0.01 2113.5 0.01 0.09 891.5 -0.49 0.75 - - 79 4 0.01 0.01 2238.7 0.03 0.08 9440.6 -0.84 0.67 - - 100.0 0.01 0.01 2371.4 0.03 0.05 10000.0 -1.29 0.48 - - - 125.9 0.00 0.00 2511.9 0.03 0.03 10592.5 :.77 0.21 • - 158.5 0.00 0.00 2660.7 0.03 0.04 11220.2 -2.13 0.00 - - 199.5 0.00 0.00 2818.4 0.03 0.06 11885.0 -2,44 -0.23 - - • 251.2 0.00 0.00 2985.4 0.04 0.11 12589.3 -2.61 -0.38 - - - 316.2 0.00 0.06 3162.3 0.04 0.14 13335.2 -3.05 -0.84 - - - 398.1 -0.01 0.05 3349.7 0.04 0.17 14125.4 -3.28 -1.13 - - 501.2 -0.01 0.01 3548.1 0.05 0.18 14962.4 -3.61 -1.54 - 631.0 -0.01 0.13 3758.4 0-06 0.19 15848.9 -434 -2.34 - . 794.3 -0.01 0.06 3981.1 0.06 0.19 16788.0 -5.51 -3.54 - - - 1000.0 -0-01 0.01 4217.0 0-07 0.21 177112.8 -7.21 -5.24 - 1059-3 -0.01 -0.01 4466.8 0.07 0.24 18836.5 -9-47 -7.47 - - 1122_.0 -0.01 0.00 4731.5 0.07 0.28 19952_.6 -10.54 -8.49 - - 1188-5 0.00 0.02 5011.9 0.06 0.32 - • - 1258.9 0.00 0.04 5308.8 0.04 0.36 - - • 1333.5 0.00 0.05 5623.4 0.03 0.42 - - - - 1412.5 0.00 0.05 5956.6 0.03 0.50 - - - - 1496.2 0.04 0.04 6309.6 0 03 0.56 - - _ - ,• Technician: Nancy Szeluga 1ZS. Date: April 6, 2007 fb * ilik PCB PIEZOTRONIC5- ='�°' VIB ATION OIVIBION 3425 Walden Avenue,Depew.New Yam, 1404: TEL:888-684-0013 F.4a:716-685-3886 www.pcb.com 032,,,,...E Ir it , , s, iiiisl• -- Certificate of Calibration and Compliance Microphone Model: 377B2() Serial Number: 10'3259 Manufacturer: PCB Calibration Environmental Conditions Environmental test conditions as printed on microphone calibration chart. Reference Equipment Manufacturer I Model# I Serial# I PCB Control# I Cal Date I Due Dare Hewlett Packard 34401A MY41045214 1D-001 3.21/0"' 3/21/08 Larson Davis PRM915 113 TA-470 2:2/07 212/08 Larson Davis PRM902 2699 TA-468 2/2/07 2/2/08 Larson Davis PRM916 104 LD-015 2/2/07 2/2/08 Larson Davis CAL250 4147 LD-018 11/10/06 11110/07 Larson Davis 2201 115 TA-472 2/13/07 2/13/08 Larson Davis 2900 664 CA-520 11/13/05 11/15/07 Larson Davis PR4951-4 222 LD-026 8/16/06 8/16/07 Larson Davis PRM902 3773 CA-887 9/26/06 9/29/07 Larson Davis PRM902 3766 CA-885 9/28/06 9/28/07 Larson Davis 25591E 3216 CA-883 9/28/06 9/28/07 • Bruel&Kjaa 4192 2493415 — LD-028 7/19/06 7/19/07 Larson Davis ADP005 1 I D 017 3/19/07 3'19/09 Fisher Scientific 02-400 1 51253176 CA-897 8/3/06 8/3/07 I Frequency sweep performed with B&K UA0033 electrostatic actuator. Condition of Unit As Found: NA As Left: New unit in tolerance Notes ! Calibration of reference microphone is traceable through PTB. 2. This certificate shall not be reproduced,except in full,without wrimen approval from PCB Piezotronics,Inc. 3 Calibration is performed m compliance with ISO 9001,ISO 10012-1,ANSI/NCSL Z540-1-1994 and ISO 17025. 4 Set Manufacturer's Specification Sheet for a detailed listing of performance specifications. 5. Open circuit sensitivity is measured using the insertion voltage method following procedure AT603-5. 6 Measurement uncertainty(95%confidence level with coverage factor of 2)for sensitivity is+1-0.20 dB. 7 A one-year calibration is recommended,however calibration interval assignment and adjustment are the responsibility of the end user S Unit calibrated per ACS-20. Technician: Nancy Szeluga '--4,4, Date: April 6,2007 PCB PIEZOTRONICS'. ("Pt VIBRATION DIVISION C.ti,..2D, 3425 Walden Avenue,Depcw,New York,14043 TEL:888-684-0013 FAX:716-685-3886 www.pcb.com ID 175.1104$1,44 • -All MODAL sTO114,24 ayo r -Calibration Certificate °° t.,;,lipciat-4S:4- ,, Pin,a.nialluh°rr.cum Description: Larson Davis Acoustic Calibrator Model: CAL200 Serial Number: 5323 Asset Number: Customer: David L.Adams Associates The subject instrument was calibrated to the indicated specification using standards stated below or to accepted values of natural physical constants. This document certifies that the instrument met the following specification upon its return to the customer. • This calibration is traceable through NIST TN 822/272213-05 Measured SPL: 114.05 dB re.20µPa Calibration Results: Measured Frequency: 1000.19 Hz Measurement uncertainty at 95%confidence level:0.25 dB The calibration was performed under operating procedures intended to implement the requirements of ISO 9001, ISO 17025 and ANSI 1540. This calibration was performed per procedure PRD-P204. Unless otherwise noted, the reported value is both"as found"and"as left"data. Calibration results relate only to the items calibrated. This certificate may not be reproduced,except in full,without written permission. Upon receipt for calibration,the instrument was found to be: �� 9/ithut F Outside the stated tolerance of the manufacturer's specification. Note: Test Conditions: Temperature: 71 (22)°F(°C) Cal Date: 6-11-2007 14:20:50 • Humidity: 34% Due Date: ppp Pressure: 1022.0mbar ppra: Ed,D Jr Approval: LGj,J•f///,{y Reference Equipment Used: Manuf. Model Serial Cat Date Due Date G.R.A.S. 40AG 58094 7/18/2006 7/18/2007 • Pagel °fl • Larson Davis A PCB Group Co. Certificate of Calibration and Conformance Certificate Number 2007-90384 Instrument Model 820, Serial Number 1303, was calibrated on 26FEB2007. The instrument meets factory specifications per Procedure D0001.8160, ANSI S1.4 1983, IEC 651-Type 1 1979, and IEC 804-Type 1 1985. Instrument found to be in calibration as received: YES Date Calibrated: 26FEB2007 Calibration due:26FEB2008 Calibration Standards Used MANUFACTURER MODEL SERIAL NUMBER INTERVAL CAL.DUE TRACEABILITY NO. Larson Davis 1 LDSgGN2209 f 0445/0111 52 Months ! 13NOV2007 L2006-86046 7 Reference Standards are traceable to the National Institute of Standards and Technology(NIST) Calibration Environmental Conditions Temperature: 23° Centigrade Relative Humidity: 27% Affirmations • This Certificate attests that this instrument has been calibrated under the stated conditions with Measurement and Test Equipment (M&TE) Standards traceable to the U.S. National Institute of Standards and Technology (NIST). All of the Measurement Standards have been calibrated to their manufacturers' specified accuracy / uncertainty. Evidence of traceability and accuracy is on file at Provo Engineering 8 Manufacturing Center. An acceptable accuracy ratio between the Standard(s)and the item calibrated has been maintained. This instrument meets or exceeds the manufacturer's published specification unless noted. This calibration complies with the requirements of ISO 17025 and ANSI Z540. The collective uncertainty of the Measurement Standard used does not exceed 25% of the applicable tolerance for each characteristic calibrated unless otherwise noted. The results documented in this certificate relate only to the item(s) calibrated or tested. A one year calibration is recommended, however calibration interval assignment and adjustment are the responsibility of the end user. This certificate may not be reproduced,except in full,without the written approval of the issuer. "AS RECEIVED"data same as shipped data. CORPORATE HEADQUARTERS Signed: SALES OFFICE 1681 West 820 North Tec nician: Eric Olson 3425 Walden Avenue Provo,Utah 846011341 USA Depew,New York 14043-2495 USA Toll Free:888-258-3222 Toll Free:888-258-3222 Tel:801-375-0177 Tel:716-926-8243 •Fax:801-375-0182 Fax:716-926-8215 mfo©tarsonDavis.com info®LarsonDavis.com www.LarsonDavis.com www.LarsonDavis.com • Larson Davis A PCB Group Co. Certificate of Calibration and Conformance Certificate Number 2007-90215 Microphone Model 2560, Serial Number 2639, was calibrated on 20FEB2007. The microphone meets current factory specifications per Test Procedure D0001.8167. Instrument found to be in calibration as received: YES Date Calibrated:20FEB2007 Calibration due:20FEB2008 Calibration Standards Used MANUFACTURER MODEL SERIAL NUMBER INTERVAL CAL.DUE TRACEABILITY NO. Larson Davis 2900 10575 12 Months 27JUN2007 2006-81604 Larson Davis _-- CAL250 42630 12 Months 03AUG2007 2006-82792 Larson Davis 2559 3034LF _ 12 Months 30AUG2007 2006-83723 Larson Davis PRM902 0529 12 Months 06SEP2007 2006-83918 Larson Davis PRM902 0528 12 Months 06SEP2007 2006-83919 Larson Davis MTS1000/2201 1000/0100 12 Months 115EP2007 2006-0911-1 Larson Davis 2559 _ _ 2504 12 Months 11OCT2007 14485-1 Larson Davis PRM9/5 0102 12 Months 13NOV2007 2006.86003 Larson Davis _ PRM902 0206 12 Months 13NOV2007 2006.85999 Larson Davis PRM916 0102 12 Months 13NOV2007 2006-86001 Hewlett Packard _ 34401A 3146A62099 12 Months 13NOV2007 294807 • Reference Standards are traceable to the National Institute of Standards and Technology(NIST) Calibration Environmental Conditions Environmental test conditions as printed on microphone calibration chart. Affirmations This Certificate attests that this Instrument has been calibrated under the stated conditions with Measurement and Test Equipment(M&TE) Standards traceable to the U.S. National Institute of Standards and Technology (HIST). All of the Measurement Standards have been calibrated to their manufacturers' specified accuracy / uncertainty. Evidence of traceability and accuracy Is on tie at Corporate Headquarters. An acceptable accuracy ratio between the Standard(s)and the item calibrated has been maintained. This Instrument meets or exceeds the manufacturers published specification unless noted. This calibration complies with the requirements of ISO 17025 and ANSI 2540. The collective uncertainty of the Measurement Standard used does not exceed 25%of the applicable tolerance for each characteristic calibrated unless otherwise noted. The results documented in this certificate relate only to the item(s)calibrated or tested. A one year calibration Is recommended,however calibration interval assignment and adjustment are the responsibility of the end user. This certificate may not be reproduced,except In full, without the written approval of the issuer. 'AS RECEIVED'data Is the same as shipped data. CORPORATE HEADQUARTERS Signed: 4a1.- .1 �-�-,. SALES OFFICE 1681 West 820 North Technician: Abraham Ortega 3425 Walden Avenue Provo,Utah 84601-1341 USA Depew,New York 14043-2495 USA Toll Free:888-258-3222 Toll Free:888.258-3222 Tel:801-375-0177 Tel:716-926-8243 fax:801-375-0182 Fax:716-926-8215 info®LarsonDavis.com info@LarsanDavis.com www.LarsonDavis.com www.LarsonDavis.com 0PCBPIEZOTRONICS- A PCB GROUP COMPANY• Certificate of Calibration and Conformance Certificate Number 2007-94062 Instrument Model 820, Serial Number 0768, was calibrated on 05JUN2007. The instrument meets factory specifications per Procedure D0001.8160, ANSI S1.4 1983, IEC 651-Type 1 1979, and IEC 804-Type 1 1985. Instrument found to be in calibration as received: YES Date Calibrated: 05JUN2007 Calibration due: 05JUN2008 Calibration Standards Used MANUFACTURER _M0DEL SERIAL NUMBER____ _ INTERVAL CAL. DUE TRACEABILITY NO. [Larson Davis LDSigGn/2209 0445/0111 112 Months 13NOV2007 2006-660.4.6 Reference Standards are traceable to the National Institute of Standards and Technology(NIST) Calibration Environmental Conditions Temperature: 23 ° Centigrade Relative Humidity: 27 To Affirmations This Certificate attests that this instrument has been calibrated under the stated conditions with Measurement and Test Equipment (M&TE) Standards traceable to the U.S.National Institute of Standards and Technology(NIST). All of the Measurement Standards have been calibrated to their manufacturers'specified accuracy/uncertainty. Evidence of traceability and accuracy is on file at Provo Engineering&Manufacturing Center. An acceptable accuracy ratio between the Standard(s) and the item calibrated has been maintained. This instrument meets or exceeds the manufacturers published specification unless noted. • This calibration complies with the requirements of ISO 17025 and ANSI Z540. The collective uncertainty of the Measurement Standard used does not exceed 25%of the applicable tolerance for each characteristic calibrated unless otherwise noted. The results documented in this certificate relate only to the item(s)calibrated or tested. A one year calibration is recommended,however calibration interval assignment and adjustment are the responsibility of the end user. This certificate may not be reproduced,except in full,without the written approval of the issuer. "AS RECEIVED"data same as shipped data. Signed: Technician: Eric Olson • — — Provo Engineering and Manufacturing Center, 1681 West 820 North, Provo, Utah 84601 Toll Free: 888.258.3222 Telephone: 716.926.8243 Fax: 716.926.8215 ISO 9001-2000 Certified tPCB PIEZOTRONICS A PCB COUP COMPANY • Certificate of Calibration and Conformance Certificate Number 2007-93723 Microphone Model 2560, Serial Number 2298, was calibrated on 29MAY2007. The microphone meets current factory specifications per Test Procedure O0001.8167. Instrument found to be in calibration as received:YES Date Calibrated:29MAY2007 Calibration-due: 29MAY2008 Calibration Standards Used MANUFACTURER MODEL SERIAL NUMBER INTERVAL CAL.DUE TRACEABILITY NO. hereon Davis 2900 0575 12 Months 27JUN2007 2008-81804 Larson Davis CAL250 42630 12 Months 03AUG2007 2006-82792 Larson Davie 2559 3034LF 12 Months 30AUG2007 2006-83723 Larson Davis PRM902 0529 12 Months 065EP2007 2006-83918 Larson Davis PRM902 �, 0528 12 Months 0BSEP2007 2006-83919 1 Larson Davis MT5100012201 1000/0100 12 Months 11SEP2007 2006-0911-7 ... _ . Larson Davis PRM975 . 0102 12 Months 13NOV2007 200&88003 I ._ _-_ . ...___.__. , Larson Davis PRM902 ', 0206 12 Months 13NOV2007 2006-85999 Larson Davis PRM916 I 0102 • 12 Months 13NOV2007 2006-86001 i Hewletl Packard 34401A 3146A62099 . 12 Months 13NOV2007 294807 Larson Davis 2559 2506 112 Months 30JAN2008 14714-1 Reference Standards are traceable to the National Institute of Standards and Technology(NISI) Calibration Environmental Conditions • Environmental test conditions as printed on microphone calibration chart. Affirmations This Certificate attests that this instrument has been calibrated under the stated conditions with Measurement and Test Equipment(M&TE)Standards traceable to the U.S. National Institute of Standards and Technology (NISI). All of the Measurement Standards have been calibrated to their manufacturers' specified accuracy / uncertainty. Evidence of traceability and accuracy is on file at Provo Engineering &Manufacturing Center. An acceptable accuracy ratio between the Standard(s) and the item calibrated has been maintained. iNs instrument meets or exceeds the manufacturer's published specification unless noted. This calibration complies with the requirements of ISO 17025 and ANSI Z540. The collective uncertainty of the Measurement Standard used does not exceed 25%of the applicable tolerance for each Characteristic calibrated unless otherwise noted. The results documented in this certificate relate only to the item(s)calibrated or tested. A one year calibration is recommended, however calibration Interval assignment and adjustment are the responsibility of the end user. This certificate may not be reproduced,except in full,without the written approval of the issuer. "AS RECEIVED"data is the same as shipped data. Signed: _it bee Lkkk yk i (1.1,--i-e, Technician: Abraham Ortega • Provo Engineering and Manufacturing Center, 1681 West 820 North, Provo, Utah 84601 Toll Free: 888.258.3222 Telephone: 716.926.8243 Fax: 716.926.8215 ISO 9001-2000 Certified December 2007 • Appendix E Fort Saint Vrain Emergency Operations Procedures • • Page 53 of 55 Fort Saint Vrain Combustion Turbine Installation Weld County Use By Special Review Permit Application FSV-O-010 Issue 4 Page 1 o£ 17 • TYPE: FORT SAINT VRAIN EMERGENCY OPERATIONS PROCEDURE TITLE : PLANT EMERGENCY, FORT ST. VRAIN STATION COMBINED CYCLE STATION APPROVED BY DIRECTOR, FT. ST . VRAIN 1 .0 PURPOSE This procedure provides emergency instructions that are applicable to the Fort St . Vrain Combined Cycle Station. 2 . 0 SCOPE 2 . 1 This procedure applies to all personnel assigned to perform work at the Fort St . Vrain Combined Cycle Station. 2 . 2 This procedure describes individual responsibilities and actions to be taken in the following emergency situations : 2 . 2 . 1 In-Plant Operational Emergency Response 2 . 2 . 2 Fire (Structural, Equipment, Grass, etc . ) 2 . 2 . 3 Natural Disaster (Tornado, Floods, Snow, Ice, etc. ) • 2 . 2 . 4 Health/Safety of the Public 2 . 2 . 5 Rescue (Confined Space, Trench, High Angle, etc. ) 2 . 2 . 6 Medical Emergency (Cardiac, Breathing, Bleeding, etc. ) 2 . 2 . 7 Hazardous Materials Release (Chlorine, Sulfuric Acid, Hydrazine, etc . ) 2 . 2 . 8 Evacuation (Plan A, Plan B, Routes, Accountability, etc. ) 2 . 2 . 9 Plant Security 2 . 2 . 10 Bomb Threat 2 . 2 . 11 Public/Media Relations (TV, Radio, Newspaper, etc. ) 2 . 2 . 12 Emergency Phone Numbers (Plant Emergency Contact List) • S:\TSB-TB\ROWSAP\0_Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-O-010 Issue 4 Page 2 o£ 17 • 3 . 0 REQUIREMENTS 3 . 1 The Director, Fort Saint Vrain (FSV) Generating Station has overall responsibility for emergency operations at Fort St . Vrain. 3 . 2 A copy of this procedure is to be maintained at the following locations : 3 . 2 . 1 The Control Room at Fort St . Vrain. 3 . 2 . 2 The Fort St . Vrain Library 3 . 3 This Procedure shall be reviewed annually and maintained current . 3 . 4 Plant personnel that are responsible for outside contractors should review emergency response procedures with their contractors and establish reporting stations prior to beginning any work. 3 . 5 Periodic training on the procedures included in this document will be performed as directed by the Plant Director. 4 .0 GENERAL PROCEDURE • 4 . 1 Upon encountering any of the 12 emergencies described above, personnel working at FSV are expected to assess the emergency and obtain necessary assistance . Attachment 1, "Emergency Phone Numbers, " provides a list of the phone numbers that can be employed to gain needed assistance . Attachment 2, "FSV Medical Providers List, " provides a list of phone numbers for medical assistance that can be used in non-emergency medical situations . 4 . 2 Communications during an emergency will be handled through the plant call system and/or telephone communications by landlines, pagers, and cellular phones . Phones that can be used to make emergency calls from FSV are located in the Control Room and in Building 10 . 4 . 3 Emergencies, which present a life threatening danger to plant personnel or to the general public, warrant an immediate call to the control room at either 1090 or 1092 . Clearly provide the following information: 4 . 3 . 1 The address of the FSV Facility. 4 . 3 . 2 The location on-site where the emergency is occurring 4 . 3 . 3 The Nature of the emergency if known • 4 . 3 . 4 Condition of any injured 4 . 3. 5 The Control Specialist will call 911 . (Denver line dial 9-911, local line 911) S:\TSB-TB\ROWSAP\0_Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-O-010 Issue 4 Page 3 of 17 • 4 . 4 Emergencies, which do not present a life threatening danger to plant personnel or to the general public, should still be reported to the Control Room at either 1090 or 1092 . Clearly provide the following information: 4 . 4 . 1 The location on-site where the emergency is occurring 4 . 4 . 2 The Nature of the emergency if known 4 . 4 . 3 Condition of any injured 4 . 4 . 4 Any applicable information to initiate emergency procedures or recovery 4 . 4 . 5 Attachment 2, "FSV Medical Providers List, " provides a list of phone numbers for medical assistance that can be used in non-emergency medical situations . 4 . 5 The on-shift Control Specialist at FSV is assigned responsibility as the Emergency Coordinator for all emergencies at FSV. The on-shift Control Specialist is also designated as the Plant Security Representative during plant emergencies . 4 . 5 . 1 The Emergency Coordinator will contact the Environmental Analyst, the Xcel Security Operations • Center, other agencies or elements of the Company, as necessary. 4 . 5 . 2 The Emergency Coordinator will sound the alarm and provide directions to plant personnel in the case of an emergency at the Site. The Emergency Coordinator will keep plant personnel informed as to the nature of the emergency and the effect of the emergency on personnel assignment and routine operations . • S:\TSB.TB\ROWSAP\0_Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-O-010 Issue 4 Page 4 of 17 • 5 . 0 SPECIFIC INSTRUCTIONS FOR IN-PLANT EMERGENCY RESPONSE 5 . 1 All personnel are to report to the top floor of Building 10 as directed by the Emergency Coordinator . Employees are to remain there until otherwise instructed. 5 . 2 IF continued plant operation endangers personnel or equipment, THEN shutdown plant . 5 . 3 PERFORM ACCOUNTABILITY. 5 . 3 . 1 Roll Call - Accounting of all personnel on site at the time of the emergency. 5 . 3 . 1 . 1 Roll Call - Accounting of all personnel on site at the time of the emergency. A roll call will be taken in both the control room and in the muster area located in office area adjacent to the control room. The control room may use the safety job briefing prepared in the 7am meeting, if available, to assist in accountability. 5 . 3 . 1 . 2 A representative from the office area will present their accountability report to the emergency coordinator in the control room. • 5 . 3 . 1 . 3 A "Security Muster" may be requested from the SOC to assist in establishing accountability for on-site personnel . This report will be faxed to (303) 620-1378 (located in the copy room) and a representative will be sent to retrieve the report . 5 . 3 . 1 . 4 The emergency coordinator will then review the accountability information from the office muster area, the SOC report, the visitor log, safety job briefing, and determine is anyone is missing. 5 . 3 . 1 . 5 If anyone is missing then a controlled search will be organized depending on the type of emergency and its location. 5 . 3 . 2 Each individual should use their own best judgment in determining how to travel to accountability stations . The plant elevator should never be used during a plant emergency. 5 . 3 . 3 Plant emergencies involving problems like a steam leak or ammonia release require that personnel travel to their emergency stations in paths that • minimize exposure to the problem. S:\TSB-TB\ROWSAP\0_Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-0-010 Issue 4 Page 5 of 17 • 5 . 3 . 4 Plant personnel that are responsible for outside contractors should review emergency response procedures with their contractors and establish reporting stations prior to beginning any work. A plant representative will be sent to pick up the visitors log to help understand who was on-site prior to the emergency and their current status . 5 . 3 . 5 Xcel employees, not FSV assigned, are expected to sign the visitors log when on site. They will have seen the FSV visitor indoctrination tape and know there muster station is outside the search and ID building. This will also assist with accountability. 5 . 3 . 6 Report any missing personnel to Control Room. The Emergency Coordinator shall establish communications using portable radios, verify departmental head count ASAP after activation of the emergency horn, and if appropriate, report to the emergency scene to direct and assign employees to provide necessary assistance . 5. 3 . 7 Personnel at Building 10 will act as a resource pool for mitigation and response during the event . • 5 . 3 . 8 If the Fort Saint Vrain Facility is unsafe for people to remain on site, then evacuation of all personnel needs to take place . 5 . 4 MAKE NOTIFICATIONS 5 . 4 . 1 Contact additional plant personnel, as needed. 5. 4 . 2 If plant shutdown has occurred, contact Energy Markets . • S:\TSB-TB\ROWSAP\0_Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-O-010 Issue 4 Page 6 of 17 6. 0 SPECIFIC INSTRUCTIONS FOR FIRE 6. 1 In the case of a fire, the Control Specialist should sound the alarm and personnel are to respond to the top floor of Building 10 . 6. 2 FSV Station employees are not trained or required to fight any fires that may occur on site that cannot be easily extinguished with an available fire extinguisher. 6. 3 Personnel should summon the Platteville Fire and Rescue Service by dialing 911 on the local phone line . 6 . 4 Another qualified person should be dispatched to the gate to escort outside emergency personnel or a fire truck to the scene . 6. 5 When the fire emergency is under control, the Control Specialist shall inform on-site personnel . 7 . 0 SPECIFIC INSTRUCTIONS FOR NATURAL DISASTER 7 . 1 In the event of a natural disaster at FSV, personnel are to respond to Building 10 . 7 . 2 In the event of a tornado or similar disaster, employees should stay in the control room away from windows and operating equipment . 7 . 3 Employees should remain in this area until otherwise instructed or until it is clear that the danger has passed. 8 . 0 SPECIFIC INSTRUCTIONS FOR HEALTH AND SAFETY OF THE PUBLIC 8 . 1 The first party responding to or discovering the emergency must report it immediately to the Control Specialist, who will contact the local emergency response agency and the Environmental Services Department . 8 . 2 If an emergency situation threatens the health and safety of the surrounding community, the public will need to be informed and possibly evacuated from the area. FSV management will cooperate with the appropriate authorities and local radio and television stations for the coordination of any public evacuation. • S:\TSB.TB\ROWSAP\0 Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-O-010 Issue 4 Page 7 of 17 • 9 .0 SPECIFIC INSTRUCTIONS FOR RESCUE AND MEDICAL EMERGENCY 9 . 1 When approaching the scene of an accident or illness, extreme caution should be used to protect rescue personnel . Rescue personnel should be aware of hazards such as : chemical, electrical, fire, and confined space hazards . Rescue may require additional personnel or outside assistance. 9 . 1 . 2 Make a preliminary assessment or initial check of the victim. 9 . 1 . 3 Send another person, if possible, to make emergency calls . If not possible, make the calls personally. Request additional rescuers if needed. Administer first aide/CPR as trained. 9. 2 Personnel who are injured or who become ill while working alone should, if possible, get to a phone or radio and call the Control Specialist and provide the Control Specialist with location as a minimum. 9. 3 The Control Specialist should call "911", and provide the authorities with as much information as is available. • 9. 4 The Control Specialist should alert FSV management to the emergency. 9. 5 All personnel are to report to top floor of Building 10 or as otherwise directed by the Emergency Coordinator . 9. 6 All personnel on site should be accounted for. 9 . 7 Another qualified person should be dispatched to the gate to escort outside emergency personnel or an ambulance to the scene. 9. 9 When the medical emergency is under control, the Control Specialist shall inform on-site personnel . 9. 10 Injuries should be reported in accordance with Xcel Energy, Energy Supply Policy ES 8 . 1, "Safety/Health Event Reporting and Investigation Process . " The policy and reporting forms can be found on the Xpressnet at http: //energysupply/RootCause/htm. 9 . 11 Attachment 2, "FSV Medical Providers List, " provides a list of phone numbers for medical assistance that can be used in non-emergency medical situations . • S:\TSB-TB\ROWSAP\0_Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-O-010 Issue 4 Page 8 o£ 17 • 10 . 0 SPECIFIC INSTRUCTIONS FOR HAZARDOUS MATERIALS RELEASE Response to Hazardous Materials release at FSV will be in accordance with the Fort St . Vrain SPCC/SWMP/MCP/HMMP (Combined) plan. 10 . 1 Whenever there is a hazardous material release, the character, exact source, amount and extent of any released material, and the possible hazards to human health and the environment must be identified. If the material causing the emergency is unknown, identification of the hazard can only be performed by personnel trained in hazard identification (i . e . , Environmental Services, Safety, Industrial Hygiene, or emergency responders) . The following are available to assist in this assessment : 10 . 1 . 1 Person reporting the emergency. 10 . 1 . 2 Material Safety Data Sheets (MSDS) . 10 . 1 . 3 Hazardous Waste Manifests . 10 . 1 . 4 PSCo Environmental Services/Safety/Industrial Hygiene. • 10 . 2 No employee shall enter a non-incidental release area without proper training. 10 . 3 Personnel identifying the emergency shall evacuate themselves from the area and notify the Control Specialist who is responsible as the Emergency Coordinator. Actions required to combat the emergency shall only be performed by personnel trained and designated for the particular function and may act only under the direction of the Emergency Coordinator. The following information should be reported to the emergency responders, if known: 10 . 3 . 1 Type of emergency. 10 . 3 . 2 Location 10 . 3 . 3 Product involved and approximate quantity. 10 . 3 . 4 Status of personnel in area including injuries . 10 . 3 . 5 Identification of impacts to critical water use areas such as rivers . 10 . 4 No employee shall enter an emergency non-incidental release area without proper training, including the use of protective equipment . • S:\TSB-TB\ROWSAP\0_Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-O-010 Issue 4 Page 9 of 17 • 10 . 5 The on-shift Control Specialist at FSV is assigned responsibility as the Emergency Coordinator for all hazardous releases at FSV. The Emergency Coordinator is to gather all information and determine if the following is necessary: 10 . 5 . 1 Notify plant personnel of the emergency and provide information regarding location, hazards and special evacuation routes if applicable . 10 . 5 . 2 Notify the Environmental Analyst and obtain their assistance in dealing with the emergency. 10 . 5 . 3 Notify 911, when appropriate. 10 . 5 . 4 Notify the ISFSI . 10 . 5 . 5 Notify the Environmental Services Department who will in turn notify CDPHE and assist with notification of others as necessary. 10 . 6 All personnel are to report to the top floor of Building 10 . 10 . 7 On-Site Personnel will assist with incidental spills under the direction of the Emergency Coordinator or the Environmental Analyst . The Environmental Analyst will • provide technical assistance to determine the hazards to on-site and off-site personnel as well as appropriate methods for containment . 11 . 0 SPECIFIC INSTRUCTIONS FOR EVACUATION 11 . 1 Safe distances can only be determined at the time of an emergency based on a combination of site and incident specific factors . 11 . 2 All personnel are to initially report to the top floor of Building 10 as directed by the Emergency Coordinator and leave plant site from there . 11 . 3 If an emergency situation threatens the health and safety of the surrounding community, the public will need to be informed and possibly evacuated from the area . FSV management will cooperate with the appropriate authorities and local radio and television stations for the coordination of any public evacuation. • S:\TSB-TB\ROWSAP\0_Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-O-010 Issue 4 Page 10 of 17 12 . 0 SPECIFIC INSTRUCTIONS FOR SECURITY 12 . 1 Coordination With Xcel Energy Physical Security Advisory System This program standardizes the Xcel Energy Security Services Department' s recommended responses to threats that MAY affect Xcel Energy System Operations, Facilities and Personnel . This program facilitates inter-business unit coordination and support for threat activities . A single threat level will be designated for the entire corporation on the intranet at: http: //xpressnet/Securitylnfo/other/51evelThreatConditions . doc 12 . 1 . 1 Once a threat level is declared, the selected security measures defined by the system are to be implemented immediately as determined by Energy Supply and Plant Management . 12 . 1 . 2 Fort Saint Vrain Combined Cycle Station will follow the instructions as determined by Energy Supply and Plant Management . 12 . 1 . 3 The Security Operations Center (SOC) will lock down or unlock sites as appropriate. . 12 . 2 Site Security Response The Shift Supervisor, or designated employee, is designated as the Plant Security Representative during plant security emergencies . If a plant Security Emergency arises, the Security Representative is to perform the following: 12 . 2 . 1 Dial "911", and provide the authorities with as much information as is available . 12 . 2 . 2 Contact the Xcel Security Operations Center (612 ) 330-6900, other agencies, or elements of the Company, as necessary. 12 . 2 . 3 Alert Plant management to the emergency. • S:\TSB-TB\ROWSAP\0_Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-O-010 Issue 4 Page 11 of 17 • 13 . 0 SPECIFIC INSTRUCTIONS FOR BOMB THREAT, BOMB THREAT REPORTING PROCEDURES DEFINITION OF A BOMB THREAT: A bomb threat is defined as any expression of intent, direct or indirect, to inflict injury, or damage to Xcel Energy assets, facilities or personnel through taped messages, by mail, by vehicle, verbally or electronic messages . 13 . 2 RECORDING THE BOMB THREAT FROM THE CALLER: 13 . 2 . 1 Take down as much information about the bomb threat (see Attachment 2, Bomb Threat Checklist) . 13 . 2 . 2 Annotate the specific bomb threat message made by the caller. 13 . 2 . 3 Write down the time when the bomb threat was received. 13. 2 . 4 Immediately notify Plant Management about the bomb threat . 13 . 2 . 5 Attempt to pull the tape of the conversation for Local Law Enforcement . 13 . 3 CONTACT THE SECURITY OPERATIONS CENTER: • 13. 3 . 1 Call the Security Operations Center at (612) 330- 6900. 13 . 3 . 2 Give the CSO all information relating to the bomb threat utilizing the Bomb Threat Checklist . 13 . 3 . 3 The SOC will then have you notify your local law enforcement agency to report the Bomb Threat . 13 . 3 . 4 The SOC will notify the On-Call Duty Investigator and Director of Security Services, who will make a final determination based on information to evacuate the facility or not . 13 . 4 CONTACT YOUR LOCAL LAW ENFORCEMENT AGENCY (DIAL 911) : 13 . 4 . 1 Give the Law Enforcement Agency all information relating to the bomb threat utilizing the Bomb Threat Checklist . 13 . 4 . 3 Local Law Enforcement will respond to the facility. 13 . 5 Evacuation Procedures 13 . 5 . 1 Follow the facility Evacuation procedures included in Step 11 . 0, "Specific Instructions For Evacuation. " • 13 . 5 . 2 Notify the SOC when the all-clear is given by the on-scene Emergency Coordinator. S:\TSB-TB\ROWSAP\0 Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-O-010 Issue 4 Page 12 of 17 • 14 . 0 SPECIFIC INSTRUCTIONS FOR MEDIA RELATIONS 14 . 1 In accordance with Xcel Energy Corporate Policy 5 . 5, "Communications Policy (Uniform Policy) , " Corporate Communications handles all corporate news media contacts and interview requests . All corporate media inquiries are referred to media relations teams in Minneapolis, Denver, Amarillo or Eau Claire . 14 . 2 Employees who are making speeches, authoring papers, or otherwise communicating publicly about company matters must review their materials with Corporate Communications in advance to ensure consistency of overall corporate messages . Employees may contact the Corporate Communications consultant assigned to their business unit or jurisdiction, or contact the Vice President of Corporate Communications directly. 14 . 3 In general, employees should be courteous and friendly to representatives of the media, but firm in their effort to direct their call to Media Relations without answering specific questions . 14 . 4 In general, employees are expected to use their good judgement in determining if and when to respond and in • determining the appropriate organization to respond. 14 . 5 If an emergency situation may threaten the health and safety of the surrounding community, the public will need to be informed and possibly evacuated from the area. FSV management will cooperate with the appropriate authorities and local radio and television stations for the coordination of any public evacuation. 14 . 6 During emergency situations, plant security must be maintained. If emergency agencies are contacted, no one but emergency response crews will be allowed admittance without approval from FSV management . If representatives of the news media arrive or call, personnel are to contact the Control Operator at FSV immediately and they will notify Media Relations . News media will not be admitted to the plant without the approval of Media Relations . • S:\TSB-TB\ROWSAP\0_Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-O-010 Issue 4 Page 13 o£ 17 • 15 . 0 REFERENCES 15 . 1 Energy Supply Operations Policy ESO-OP-6. 100, "Operations Standard Operating Procedures, " Appendix A - Standard Operating Procedures - minimum content by Plant type, Plant Emergency. 15 . 2 Xcel Energy Corporate Policy 5 . 5, "Communications Policy (Uniform Policy) . " 15 . 3 Energy Supply Policy ES 8 . 1, "Safety/Health Event Reporting and Investigation Process . " 16. 0 ATTACHMENTS 16. 1 Attachment 1 : Emergency Phone Numbers 16. 2 Attachment 2 : FSV Medical Providers 16. 3 Attachment 3 : Bomb Threat Report 17 . 0 REVISIONS 17 . 1 Issue 3, Revise procedure to meet requirements of new Energy Supply Operations Policy ESO-OP-6 . 100 and to add non-emergency Medical Providers phone numbers as a result • of operating experience; October 2005. 17 . 1 Issue 4 , Revise procedure to include instructions to obtain a security muster; November 2005 . • S:\TSB-TB\ROWSAP\0_Projects_PSCo\FSV CTs\and Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-O-010 Issue 4 ATTACHMENT 1 : Emergency Phone Numbers Page 14 of 17 • Organization/Contact Name Phone Fort St. Vrain Personnel Marty Block (303) 651-6654-home Plant Management (877) 584-7904 -pager (303)378-6445—cell Jerry McCauley (970)667-0635 -home (720)480-5510-cell Bob Gunnerson (970)215-3587-cell Emergency Coordinator On Duty Control Specialist (303)620-1090 (303)620-1091 Plant Environmental Analyst Jesse Brungardt (303)620-1341 -plant (303) 556-1990-pager (303)493-9272—home (970)396-6583 -cell 24-Hour Emergency Phone and Pager Environmental Services (800)541-0918 (303)556-1244-pager Environmental Services Hotline Environmental Services (720)497-2150 Chemistry Resources-Golden Lab -- (720)497-2050 (303)556-0980-pager Gas Load Control,Lookout Center, Golden (303)-571-7811 PSCo Gas Emergency Response -- (303)571-3895 • Security (612)330-6900 Security Operations Center(SOC) (612)330-7842 (612)904-5355 (fax) Emergency Responders Platteville Fire Department -- 9-911 Weld County Sheriff -- 9-911 North Colorado Medical Center, Greeley -- (970)352-4121 Safety Karen Weiderspon (970)842-1270 -office ISFSI Central Alarm Station (970)785-0680 Ted Borst (970)785-0690 Emergency Response Contractors -- See page 2 of phone list in combined plan Local Weld County Emergency Planning Committee -- (970)356-4015 Downstream Water Users South Platte River Environmental Services (303)556-1224-pager Federal -- National Response Center (800)424-8802 Environmental Protection Agency Region VIII -- (303)312-6312 (800)227-8914(24 hr) State Colorado Department of Public Health and -- (877)518-5608 Environment(CDPHE) • State of Colorado Department of Labor and (303)318-8547 Day Employment, Oil Inspection Section(OIS)Leak (877)518-5608 After Hours Report S:\TSB-TB\ROWSAP\0_Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_104I Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-O-010 Issue 4 ATTACHMENT 1 : Emergency Phone Numbers Page 15 o£ 17 • Evacuation Location-Top Floor Building 10 • • S:\TSB-TB\ROWSAP\0_Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-0-010 Issue 4 Page 16 o£ 17 • ATTACHMENT 2 : FSV Medical Providers List North Colorado Occupational Medicine (NCOM) 970-392-2170 1517 16th Avenue Court Greeley, CO 80631 ARBOR (Longmont) 303-702-1612 1840 W. Mountain View #3 Longmont, CO 80501 ARBOR (Loveland) 970-593-0125 1608 Topaz Ave. Loveland, CO80646 • S:\TSB-TB\R0WSAP\0_Projects_PSCo\FSV CTs\Land Use Permitting\Weld USR_1041 Application\FSV-O-010 PLANT EMERGENCY.doc Effective Date: 12/12/2007 FSV-O-010 PLANT EMERGENCY, FORT ST. VRAIN Issue 4 Attachment 3 : Bomb Threat Report Page 17 o£ 17 • Department of the Treasury �_- Bureau of Alcohol, Tobacco & LLD ❑ Slurred E Whispered Firearms .. BOMB THREAT CHECKLIST O Ragged ❑ Clearing Throat 1. When is the bomb going to explode? 0 Deep Breathing ❑ Cracking Voice 0 Disguised 0 Accent 2. Where is the bomb right now? 3. What does the bomb look like? 0 Familiar(If voice is familiar, who did it sound like?) 4. What kind of bomb is it? 5. What will cause the bomb to explode? BACKGROUND SOUNDS: 6. Did you place the bomb? 0 Street noises ❑ Factory machinery 0 Voices 0 Crockery 7. Why? 0 Animal noises 0 Clear 8. What is address? 0 PA System 0 Static 9. What is your name? 0 Music ❑ House noises 0 Long distance 0 Local ❑ Motor 0 Office machinery 0 Booth 0 Other(Please spec))) S BOMB THREAT LANGUAGE: 0 Well spoken(education) 0 Incoherent Sex of caller: Race: ❑ Foul 0 Message read by Age: Length of call: threat maker Telephone number at which call is received: ❑ Taped 0 Irrational Time call received: REMARKS: Date call received: CALLER'S VOICE Your name: ❑ Calm 0 Nasal 0 Soft 0 Angry Your position: ❑ Stutter 0 Loud ❑ Excited ❑Lisp ❑ Laughter ❑ Slow 0 Rasp 0 Crying • 0 Rapid 0 Deep ❑Normal 0 Distinct Your telephone number: December 2007 • Appendix F State of Colorado Wastewater Discharge Permits • • Page 54 of 55 Fort Saint Vrain Combustion Turbine Installation Weld County Use By Special Review Permit Application Permit No. CO-0001121 • County: WELD AUTHORIZATION TO DISCHARGE UNDER THE COLORADO DISCHARGE PERMIT SYSTEM In compliance with the provisions of the Colorado Water Quality Control Act,(25-8-101 et seq.,CRS, 1973 as amended)and the Federal Water Pollution Control Act,as amended(33 U.S.C.1.251 et seq.;the"Act")the Public Service Company of Colorado,dba Xcel Energy is authorized to discharge from Fort Saint Vrain Station located Section 3,T3N,R67W; 6th Principal Meridian,as shown in Figure 1,to the South Platte River, St.Vrain Creek, and any natural and man-made tributaries of these two streams,in accordance with effluent limitations,monitoring requirements and other conditions set forth in Part I and It hereof. All discharges authorized herein shall be consistent with the terms and conditions of this permit. The applicant may demand an adjudicatory hearing within thirty(30)days of the issuance of the final permit • determination,per the Colorado Discharge Permit System Regulations,61.7(1). Should the applicant choose to retest any of the effluent limitations,monitoring requirements or other conditions contained herein,the .pplicant must comply with Section 24-4-104 CRS and the Colorado Discharge Permit System Regulations. Failure to contest any such effluent limitation,monitoring requirement,or other condition,constitutes consent to the condition by the Applicant. This permit and the authorization to discharge shall expire at midnight,January 31,2007. Issued and Signed this 31"day of December,2001 COLORADO�.DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT lPAja2140:10 a�'yug,.�Le..� zoo LX, zo�o St [ J.David Holm,Director o D Water Quality Control Division DATE SIGNED: DECEMBER 31,2001 • ::bFL�CTIVE DATE OF PERMIT: FEBRUARY 1,2002 Permit No.CO-0001121 IDTABLE OF CONTENTS PART I..» 3 A. TERMS AND CONDITIONS 3 1. General Effluent Limitations-All Outfalls 3 2. Specific Effluent Limitations 4 3. Whole Effluent Toxicity Testing Requirements-Acute WET Testing-Outfalls 001B and 002 10 B. MONITORING REQUIREMENTS 12 1. Frequency and Sample Type 12 2. Special Monitoring 14 C. DEFINITIONS OF TERMS 15 D. SPECIAL REQUIREMENTS 16 1. Materials Containment Plan 16 2. Stormwater Requirements 17 E. GENERAL MONITORING,SAMPLING AND REPORTING REQUIREMENTS 22 1. Routine Reporting of Data 22 2. Representative Sampling 23 3. Analytical and Sampling Methods for Monitoring 23 4. Records 24 5. Flow Measuring Device 24 6. Signatory and Certification Requirements 24 PART II 31 A. NOTIFICATION REQUIREMENTS 31 1. Notification to Parties 31 2. Change in Discharge 31 3. Special Notifications-Definitions 32 . 4. Noncompliance Notification 32 5. Other Notification Requirements 33 6. Bypass Notification 33 7. Upsets 34 8. Discharge Point 34 9. Proper Operation and Maintenance 34 10.Minimization of Adverse Impact 34 11.Removed Substances 35 12.Submission of Incorrect or Incomplete Information 35 13.Bypass 35 14.Reduction,Loss,or Failure of Treatment Facility 35 B. RESPONSIBILITIES 36 1. Inspections and Right to Entry 36 2. Duty to Provide Information 36 3. Transfer of Ownership or Control 36 4. Availability of Reports 37 5. Modification,Suspension,Revocation,or Termination of Permits By the Division 37 6. Oil and Hazardous Substance Liability 39 7. State Laws 40 8. Permit Violations 40 9. Property Rights 40 10.Severability 40 11.Renewal Application 40 12.Confidentiality 40 13.Fees 40 14.Duration of Permit 40 • 15.Sectfon 307 Tories 41 16.Antibacicsliding 41 17.Effect of Permit Issuance 42 PART I • Page No.3 Permit No.:CO-0001121 • PARTI A. TERMS AND CONDITIONS 1.. General Effluent Limitations-All Outtalk Beginning no later than the effective date of this permit and lasting through January 31, 2007 the permittee is authorized to discharge from outfall(s) 00IA, 001B, 002, 003, 004, 005, 006, 007; all prior to entering the South Platte River and/or St Vrain Creek,as shown in Figure 3. • In accordance with the Water Quality Control Commission Regulations for Effluent Limitations, Section 62.4, and the Colorado Discharge Permit System Regulations,Section 61.8(2),5 C.C.R. 1002-61,the following general requirements are applicable for this facility. a. There shall be no discharge of polychlorinated biphenyl compounds such as those commonly used for transformer fluids. • b. The discharge of free available chlorine(FAC)and/or total residual chlorine(TRC)from any single generating unit and/or from cooling tower blowdown must be performed under best management practices and procedures in order to attain effective macro invertebrate control and biocide control,using low feed rates which result in compliance with permit discharge limitations for total residual chlorine; causing no substantial increase in the FAC and/or TRC concentrations in the discharge as compared to previous_historical levels; achieve a reduction of toxicity and of biocides to comply with WET testing requirements of the permit;and to bring about a reduction of copper corrosion problems and copper discharge concentrations: Simultaneous multi- unit chlorination is permitted. c. There shall be no discharge of metal cleaning wastes other than to the Northwest and South evaporation ponds. The use of the term metal cleaning wastes in this permit is intended to include,but is not limited to,wastes from heat exchanger cleaning. It is understood that there shall be no discharge from the Northwest or South evaporation ponds to State waters. The permittee shall • utitive Best Management Practices(BMPs)to ensure that the integrity of the evaporation ponds and the liners are maintained so there is no impact to surface and ground water. d. There shall be no discharge of cooling tower basin cleaning wastes other than to the Northwest and South evaporation ponds. During the cleaning of a cooling tower basin, it is understood that the discharge only goes to the Northwest and South evaporation ponds, and that there shall be no discharge of water to State waters. The permittee ehall utilivo Best Management Practices(BMPs) to ensure that the integrity of the evaporation ponds and the liners are maintained so there is no impact to surface and ground water. e. As a BMP,the bypass flows of water from the service cooling tower and flow directly from the raw water storage ponds in the North Yard Drain shall be managed so as to ensure that permit limitations and conditions are met, and that there will be no, or rninimivpd impacts to the receiving stream(s). 1. .If a visible sheen or floating oil is observed at an outfall,the appropriate corrective measures shall be taken as soon as practical. A log shall be maintained of all visual inspections and any corrective measures taken. Upon request by authorized representatives of the Division or the EPA,the log shall immediately be made available for inspection. g. With the exception of total chromium and total zinc for the service water cooling tower and the main cooling tower blowdown, there shall be no detectable amounts of the 126 priority pollutants(Appendix A of 40 CFR Part 423)due to chemicals added for cooling tower maintenance,use in boilers,or forty other purposes. Compliance with this requirement may be determined by reported data and/or calculations to demonstrate that the regulated pollutants are not detectable in outfall 001B(or 002)by the analytical methods contained in 40 CFR Part 136. Any proposed changes in chemical usage at the facility that would potentially affect the discharge shall be submitted to the Permits Unit of the Water Quality Control Division for a determination on whether these chemicals require review and approval prior to use. A one-time analysis of the priority pollutants, organic chemicals,PCBs,and other chemicals indicated in the permit renewal application is required for each five-year permit renewal If the permittee plans to resume use of any chemicals containing compounds of chromium or zinc, then Public Service Company must notify the Division prior to the proposed usage in order to draft an amendment,which would include increased monitoring frequencies for total chromium and/or total zinc. , _ENDED: APRIL 19,2004 EFFECTIVE: JUNE 1,2004 EXPIRES: JANUARY 31,2007 PART I Page No. 4 • Permit No.:CO-0001121 A. TERMS AND CONDITIONS 1. General Effluent Limitations-All Outfalls(Continued) h. Public Service Comp'ny of Colorado Wises land adjoining the plant site to farmers for agricultural purposes. Plant discharge may be used for irrigation and livestock watering prior to,or after intermingling with water in the Goosequill Ditch,Beeman Ditch,and Jay Thomas Ditch. For situations where the farmers have dammed the ditches to allow for diversion of water for irrigation purposes which might cause upstream flooding over the ditch walls,the Division has determined that PSC is not required to notify the Division of this situation. However,other situations involving bypass or upset conditions at the facility will still require notification as required by this permit. 2. Specific Effluent Limitations b a. Outfall 001A Beginning no later than the effective date of this permit and lasting through January 31,2007 the permittee is authorized to discharge from outfall 001A:the overflow from the farm pond at the Parshall flume,which is prior to entering the South Platte River. In accordance with the Water Quality Control Commission Regulations for Effluent Limitations,Section 62.4,and the Colorado Discharge Permit System Regulations, Section 61.8(2),5 C.C.R 1002-61,the permitted discharge shall not contain effluent parameter concentrations in the form of heat or other chemicals or materials other than those authorized by this permit. No monitoring of flow or other parameters will be required at this outfall. There shall be no discharge of floating solids. • See Part LC.for Definitions. • • PARTI Page No.5 PemutNo.:CO-0001121 TERMS AND CONDITIONS $necific Effluent Limitations(Continued) a. Outfall 001B Beginning no later than the effective date of this permit and lasting through January 31, 2007 the permittee is authorized to discharge from outfall 001B: (low volume wastes, cooling tower blowdown, and all other regulated wastewater sources),prior to entering the South Platte River,as shown in Figures 3 and 4. Outfall 001B is the discharge of treated wastewaters to the Goosequill Ditch Stub,then to the Jay Thomas Ditch leading to the farm pond and ultimately to the South Platte River. In accordance with the Water Quality Control Commission Regulations for Effluent Limitations, Section 62.4, and the Colorado Discharge Permit System Regulations, Section 61.8(2), 5 C.C.R. 1002-61, the permitted discharge shall not contain effluent parameter concentrations,which exceed the following limitations specified below or exceed the specified flow limitation. Effluent Parameter Discharge Limitations 30-Day Average 7-Day Average pails Maximum Flow,MGD 2.08 N/A Report Total Suspended Solids(TSS),Net,mg/I "/ 30 N/A 46.5 Total Residual Chlorine,mg/L 0.120 N/A 0.208 Total Ammonia,mg/1 as N Report N/A N/A Temperature,°F N/A N/A 86 pH,s.u.(mini a-maximum) N/A N/A 6.5-9.0 Oil and Grease,mg/1 N/A . N/A 10 "/ Whole Effluent Toxicity,Acute N/A N/A Report Total Chromium,mg/L 0.0275 N/A 0.0275 Dissolved Copper,mg/L Report N/A Report Total Recoverable Iron,mg/L 2.735 N/A Report Total Zinc,mg/L 0.20 N/A 0.21 There shall be no discharge of floating solids. !/-The"Daily Maximum" limitation for this parameter shall be applied as an instantaneous maximum(or, in the case of pH or DO, instantaneous minimum)value. The instantaneous value is defined as the analytical result of any individual sample. Report the maximum(and/or minimum)of all instantaneous values within the calendar month. Any instantaneous value beyond the noted daily maximum limitation for the indicated parameter shall be considered a violation of this permit ;"/-TSS shall be monitored at the two following locations so that net limitations may be applied:(1)raw water supply after the settling ponds or after the raw water(makeup) pond, as shown in figure 4; (2) at outfall 0018 or 002,depending on the discharge point Both of these values and the resultant net TSS value shall be reported on the Discharge Monitoring Report form. See Part I.C.for Definitions. AMENDED:APRIL 19,2004 EFFECTIVE: JUNE 1,2004 EXPIRES: JANUARY 31,2007 • • PART PageNo.6 TERMS AND CONDITIONS PemutNo.:CO-000ttzt Snecific Effluent Limitations(Continued) • b. Outfall 002 Beginning no later than the effective date of this permit and lasting through January 31, 2007 the permittee is authorized to discharge from outfall 002: (low volume wastes, cooling tower blowdown, and all other regulated wastewater sources),prior to entering the St.Vrain Creek,as shown in Figures 3 and 4. Duffel'002 is the discharge of treated wastewater from the same sources as for Outfall 001B to the drainage slough,which does not include water from the Jay Thomas Ditch and which is prior to entering St.Vrain Creek. In accordance with the Water Quality Control Commission Regulations for Effluent Limitations, Section 62.4, and the Colorado Discharge'Permit System Regulations, Section 61.8(2), 5 C.C.R. 1002-61, the permitted discharge shall not contain effluent parameter concentrations which exceed the following limitations specified below or exceed the specified flow limitation. Effluent Parameter Discharge Limitations 30-Day Average 7-Day Average Daily Maximum Flow,MGD 2.08 N/A Report Total Suspended Solids(TSS),Net,mg/1 t"/ 30 N/A 46.5 • Total Residual Chlorine,mg/L 0.303 N/A 0.298 Total Ammonia,mg/1 as N Report N/A N/A Temperature,°F N/A N/A 86 pH,s.u.(minimum-maximum) N/A N/A 6.5-9.0 Oil and Grease,mg/1 N/A N/A 10 */ • Whole Effluent Toxicity,Acute N/A N/A ' Report Total Chromium,mg/L 0.0275 N/A 0.0275 Dissolved Copper,mg/L Report N/A Report Total Recoverable Iroh,mg/L 5.436 N/A Report Total Zinc,mg/L ' 0.20 N/A 0.21 There shall be no discharge of floating solids. -The"Daily Maximum"limitation for this parameter shall be applied as an instantaneous maximum(or,for pH or DO,instantaneous minimum)value. The instantaneous value is defined as the analytical result of any individual sample. Report the maximum(and/or minimum) of all instantaneous values within the calendar month. Any instantaneous value beyond the noted daily maximum limitation for the indicated parameter shall be considered a violation of this permit •**/-TSS shall be monitored at the two following locations so that net limitations may be applied: (1)raw water supply after the settling ponds or after the raw water(makeup)pond, as shown in figure 4; (2) at outfall 0018 or 002, depending on the discharge point Both of these values and the resultant net TSS value shall be reported on the Discharge Monitoring Report form. See Part I.C.for Definitions. AMENDED:APRIL 19,2004 EktILCTIVE: JUNE 1,2004 EXPIRES: JANUARY 31.2007 PART I • Page No. 7 Permit No,:CO-0001121 A. TERMS AND CONDITIONS 2. Specific Effluent Limitations(Continued) d. Outfalls 003.004,005 Beginning no later than the effective date of this permit and lasting through January 31,2007 the permittee is authorized to discharge from outfalls 003,004,005. Outfall 003 is the discharge from the trash screens at the water supply intake from the South Platte River,which is prior to entering the South Platte River,as shown in Figures 3 and 4. Outfall 004 is the discharge from the trash screens at the water supply intake from the St. Vrain Creek,which is prior to entering St.Vrain Creek. Outfall 005 is the discharge of excess water from the raw water settling ponds for the intake from St.Vrain Creek, prior to entering St.Vrain Creek. In accordance with the Water Quality Control Commission Regulations for Effluent Limitations, Section 62.4,and the Colorado Discharge Permit System Regulations,Section 61.8(2),5 C.C.R. 1002-61,the permitted discharge shall not contain effluent parameter concentrations which exceed the following limitations specified below or exceed the specified flow limitation. The discharges from entrails 003 and 004 shall consist solely of St.Vrain Creek and/or South Platte River water used for trash skimming purposes at the water intake(s). The discharge from outran 005 shall consist solely of sluiced water from the St.Vrain Creek intake. These discharges shall contain no pollutants in the form of heat or other chemicals or materials other than those removed from the trash skimmer structure. No monitoring of flow or other parameters will be required at these three outfalls. • There shall be no discharge of floating solids. See Part IC.for Definitions. • PART I • Page No. 8 Permit No.: CO-0001121 A. TERMS AND CONDITIONS L Specific Effluent Limitations(Continued) e. Outfall 006 Beginning no later than the effective date of this permit and lasting through January 31,2007 the permittee is authorized to discharge from outfall 006. Outfall 006 is the internal discharge point from the turbine building drain sump at the end of the 24-inch pipe as shown in Figures 3 and 4,which is prior to mixing with other wastewaters,or prior to being pumped from a temporary pond to be used for lawn watering in the vicinity of the discharge from the 24-inch pipe In accordance with the Water Quality Control Commission Regulations for Effluent Limitations, Section 62.4,and the Colorado Discharge Permit System Regulations,Section 61.8(2),5 C.C.R. 1002-61,the permitted discharge shall not contain effluent parameter concentrations which exceed the following limitations specified below or exceed the specified flow limitation. Effluent Parameter Discharge Limitations 30-Day Average 7-Day Average Daily Maximum Flow,MGD Limit/Report N/A Report Oil and Grease,mg/1 15 N/A 20 */ pH,s.u. (minimum-maximum) N/A N/A 6.0-11.8 Total Suspended Solids(TSS),mg/1 30 N/A 100 • There shall be no discharge of floating solids. */-The'Daily Maximum"limitation for this parameter shall be applied as an instantaneous maximum(or,for pH or DO, instantaneous minimum)value. The instantaneous value is defined as the analytical result of any individual sample. Report the maximum(and/or minimum)of all instantaneous values within the calendar month. Any instantaneous value beyond the noted daily maximum limitation for the indicated parameter shall be considered a violation of this permit. See Part LC.for Definitions. • PART I • Page 9 Permit No.: CO-0001121 A. TERMS AND CONDITIONS 2. Specific Effluent Limitations(Continued) 1. Outfall 007 Beginning no later than the effective date of this permit and lasting through January 31,2007 the permittee is authorized to discharge from outfall 007. Outfall 007 is the internal discharge point from the domestic sewage treatment system from the last treatment unit,as shown in Figures 3 and 4,prior to mixing with other wastewater. In accordance with the Water Quality Control Commission Regulations for Effluent Limitations,Section 62.4,and the Colorado Discharge Permit System Regulations, Section 61.8(2),5 C.C.R. 1002-61,the permitted discharge shall not contain effluent parameter concentrations which exceed the following limitations specified below or exceed the specified flow limitation. Effluent Parameter Discharge Limitations 30-Day Average 7-Day Average Daily Maximum Flow,MGD Limit/Report N/A Report Oil and Grease,mg/1 N/A N/A 10 */ pH,s.u. (minimum-maximum) N/A N/A 6.0-10.5 Total Suspended Solids(TSS),mg/1 75 110 Report Total Residual Chlorine,mg/L Report N/A Report BOD5,mg/1 30 45 Report Fecal Coliform Bacteria,if/100 ml 6,000 12,000 N/A There shall be no discharge of floating solids. -The"Daily Maximum"limitation for this parameter shall be applied as an'instantaneous maximum(or,for pH or DO, instantaneous minimum)value. The instantaneous value is defined as the analytical result of any individual sample. Report the maximum(and/or minimum)of all instantaneous values within the calendar month. Any instantaneous value beyond the noted daily maximum limitation for the indicated parameter shall be considered a violation of this permit. See Part LC.for Definitions. • • PART I • r No. Permit No.: CO-0001121 A. TERMS AND CONDITIONS(CONTINUED) 3. Whole Effluent Toxicity Testing Requirements-Acute WET Testing-Outfalls 001B and 002: a. Testing and Reporting Requirements Tests shall be done at the frequency listed in Part I.B.I. Test results shall be reported along with the Discharge Monitoring Report(DMR)submitted for the reporting period during which the sample was taken.(i.e., WET testing results for the first calendar quarter ending March 31 shall be reported with the DMR due April 28.) The results shall be submitted on the Acute Toxicity Test report form,available from the Division. Copies of these reports are to be submitted to both the Division and EPA along with the DMA. The permittee shall conduct each acute WET test in general accordance with methods described in Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms EPA/600/4- 90/027 or the most current edition,except as modified by the most current Division guidance document entitled Guidelines for Conducting Whole Effluent Toxicity Tests. The permittee shall conduct an acute 48-hour WET test using Ceriodaphnia sp.,and an acute 96-hour WET test using fathead minnows. Acute tests will be replacement static tests of a single effluent grab sample. b. Failure of Test and Division Notification An acute WET test is failed whenever the LCso,which represents an estimate of the effluent concentration which is lethal to 50%of the test organisms in the time period prescribed by the test,is found to be less than or equal to 100% effluent The permittee must provide written notification of the failure of a WET test to the Division,along with a • statement as to whether the Preliminary Toxicity Incident("PTI")/Toxicity Identification Evaluation("TIE") investigation or accelerated testing is being performed(see next section). Notification must be received by the Division within 14 calendar days of the demonstration of acute WET in the routine required test. "Demonstration"for the purposes of Parts I.A.4(b),(c),(d)and(f) means no later than the last day of the laboratory test. c. Automatic Compliance Schedule Upon Failure of Test If a routine acute WET test is failed,even though monitoring only is required,the following automatic compliance schedule shall apply. As part of this the permittee shall either: i) Proceed to conduct the PTI/TIE investigation as described in Part I.A.4.(d),or ii) Conduct accelerated testing using the single spc_ies found to be more.sensitive. If accelerated testing is being performed,the permittee shall provide written notification of the results within 14 calendar days of completion of the"Pattern of Toxicity"/"No Toxicity" demonstration. Testing will be at least once every two weeks for up to five tests until 1)two consecutive tests fail or three of five tests fail,in which case a pattern of toxicity has been demonstrated or,2)two consecutive tests pass or three of five tests pass,in which case no pattern of toxicity has been found. If no pattern of toxicity is found the toxicity episode is considered to be ended and routine testing is to resume. If a pattern of toxicity is found,a PTIIfIE investigation is to be perforated. If a pattern of toxicity is not demonstrated but a significant level of erratic toxicity is found,the Division may require an increased frequency of routine monitoring or some other modified approach. d. PTI/fIE The results of the PTI/TIE investigation are to be received b,the Division within 120 days of the demonstration of acute WET in the routine test,as defined above,or if accelerated testing is performed,the date the pattern of • toxicity is demonstrated. A status report is to be Provided to the Division at the 30,60 and 90 day points of the PTI/TIE investigation. The Division may extend the time frame for investigation where reasonable justification exists. A request for an extension must be made in writing and received prior to the 120 day deadline. Such request must include a justification and supporting data for such an extension. PART I • Page No. Permit No.:CO-0001121 A. TERMS AND CONDITIONS 3. Whole Effluent Toxicity Testing Requirements-Acute WET Testing-Outfalls OO1B and 002 d. PTI/TIE(Continued) The permittee may use the time for investigation to conduct a P11 or move directly into the TIE. A PTI consists of a brief search for possible sources of WET,which might reveal causes of such toxicity and appropriate corrective actions more simply and cost effectively than a formal TIE. If the PTI allows resolution of the WET incident,the TIE need not necessarily be conducted. If,however,WET is not identified or resolved during the PTI,the TIE must be conducted within the allowed 120-day time frame. Any permittee that is required to conduct a PTT/fIE investigation shall do so in conformance with procedures identified in the following documents,or as subsequently updated: 1)Methods for Aquatic Toxicity Identification Evaluations Phase I Toxicity Characterization Procedures,EPA/600/6-91/003 Feb.91 and 2)Methods for Aquatic Toxicity Identification Evaluations.Phase B Toxicity Identification Procedures EPA/600/3-88/035 Feb. 1989. A third document in this series is Methods for Aquatic Toxicity Identification Evaluations.Phase III Toxicity Confirmation Procedures EPA/600/3-88/036 Feb. 1989. As indicated by the title,this procedure is intended to confirm that the suspected toxicant is truly the toxicant. This investigation is optional. Within 90 days of the determination of the toxicant or no later than 210 days after demonstration of toxicity,whichever is sooner,a control program is to be developed and received by the Division. The program shall set down a method and procedure for elimination of the toxicity to acceptable levels. • e. Request For Relief The permittee may request relief from further investigation and testing where the toxicant has not been determined and the Division has determined suitable treatment does not appear possible. In requesting such relief,the permittee shall submit material sufficient to establish the following: 1) It has complied with terms and conditions of the permit compliance schedule for the PTIJTIE investigation and other appropriate conditions as may have been required by the Division; ii) During the period of the toxicity incident it has been in compliance with all other permit conditions,including,in the case of a POTW,pretreatment requirements; iii) During the period of the toxicity incident it has properly maintained and operated all facilities and systems of treatment and control;and iv) Despite the circumstances described in paragraphs(i)and(iii)above,the source and/or Cause of toxicity could not be located or resolved. If deemed appropriate by the Division,the permit or the compliance schedule may be modified to revise the ongoing monitoring and toxicity investigation requirements to avoid an unproductive expenditure of the permittee's resources, provided that the underlying obligation to eliminate any continuing exceedence of the toxicity limit shall remain. f. Spontaneous Disappearance If toxicity spontaneously disappears at any time after a test failure,the permittee shall notify the Division in writing within 14 days of a demonstration of disappearance of the toxicity. The Division may require the permittee to develop • and submit additional information which may include,but is not limited to,the results of additional testing. If no pattern of toxicity is identified or recurring toxicity is not identified,the toxicity incident response is considered closed and normal WET testing shall resume. PART Page No.12 PermitNo.:CO-0001121 0. TERMS AND CONDITIONS • Whole Effluent Toxicity Testing Requirements-Acute WET Testing-Outfalls 001B and 002(Continued) • a. ToxicityReonenel • This permit may be reopened and modified (following proper administrative procedures) to include new compliance dates, additional or modified numerical permit limitations, a new or different compliance schedule, a change in the whole effluent toxicity testing protocol,or any other conditions related to the control of toxicants if one or more of the following events occur: i) Toxicity has been demonstrated in the effluent and the permit does not contain a toxicity limitation. ii) The PTVI'IE results indicate that the toxicant (s) represent pollutant(s) that may be controlled with specific numerical limits,and the Division agrees that the numerical controls are the most appropriate course of action. iii) The PTUTIE reveals other unique conditions or characteristics, which in the opinion of the Division justify the incorporation of unanticipated special conditions in the permit B. MONITORING REQUIREMENTS 2. Frequency and Sample Type In order to obtain an indication of the probable compliance or noncompliance with the effluent limitations specified in Part IA.1,the permittee shall monitor all effluent parameters at the following frequencies. Such monitoring will begin immediately and last for the life of the permit unless otherwise noted. The results of such monitoring shall be reported on the Discharge Monitoring Report form (See Part I.E.) a. Outfall001A • • No monitoring of flow or other parameters will be required at outfall 00IA. • b. Outfalls 001B and 002 'Effluent Parameter Measurement Frequency Sample Type Flow,MOD Daily Instantaneous Oil and Grease,mg/1 • Daily Visual pH,s.u.(minimum-maximum) Daily . Grab ' Temperature,°F Daily In-Sim Total Suspended Solids(TSS),Net!±,mg/I Weekly Grab Total Residual Chlorine,mg/L Weekly Grab • Total Ammonia,mg/I as N Monthly Grab • Whole Effluent Toxicity,Acute!C Quarterly Grab Total Chromium,mg/L Monthly Grab Dissolved Copper,mg/L Monthly Grab Total Recoverable Iron,mg/L Monthly ' Grab Total Zinc,mg/L - Monthly Grab •/ For routine acute WET testing,only one sample is required to be collected regardless of whether discharge occurs through 001B or 002 and the results will be reported as 001W or 002W, respectively. If discharge is occurring simultaneously through outfalls OOIB and 002 at the time WET testing is performed,the permittee shall collect a grab sample consisting of effluent from both outfalls and proportioned according to the flow rate at the time of sample collection. This combined sample shall be identified as outfall 02BW. **/-TSS shall be monitored at the two following locations so that net limitations may be applied (1)raw water supply after the settling ponds or after the raw water (makeup) pond, as shown in figure 4; (2) at outfall 0018 or 002, depending on the • discharge point. Both of these values and the resultant net TSS value shall be reported on the Discharge Monitoring Report form. AMENDED:APRIL 19,2004 Er rECTIVE: JUNE 1,2004 EXPIRES: JANUARY 31,2007 PART I • Pe Permit No,:CO-0001121 B. MONITORING REQUIREMENTS 1. Frequency and Sample Type(Continued) a. Outfalls 001B and 002(Continued) • Self-monitoring sampling by the permittee for compliance with the monitoring requirements specified above shall be performed at the following locations:outfall serial numbers 001B and 002. Outfall 001B is the outfall 001 discharge at the Parshall flume in the Goosequill Ditch Stub located near the diversion box that receives the various waste flows, and which discharges to the South Platte River,as shown in Figure 3 of the permit. Outfall 002 is the discharge of treated wastewaters,from the same sources as for outfall 001B,located at the Parshall flume in the drainage slough, which does not include water from the Jay Thomas Ditch,and which is prior to entering St.Vrain Creek,as shown in Figure 3. If the permittee,using the approved analytical methods,monitors any parameter more frequently than required by this permit,then the results of such monitoring shall be included in the calculation and reporting of the values required in the Discharge Monitoring Report Form(DMRs)or other forms as required by the Division. Such increased frequency shall also be indicated. c. Outfalls 003,004 and 005 No monitoring of flow or other parameters will be required at these three outfalls(003,004,and 005). d. Outfall 006 • giluent Parameter Measurement Frequency Sample Type Flow,MGD Weekly Instantaneous Oil and Grease,mg/I Weekly Visual pH,s.u. (minimum-maximum) Weekly Grab Total Suspended Solids(TSS),mg/1 Monthly Grab Self-monitoring sampling by the permittee for compliance with the monitoring requirements specified above shall be performed at the following location:outfall 006. Outfall 006 is the internal discharge from the turbine building drain at the end of the 24-inch pipe,which is prior to mixing with other waters as shown in Figure 3,or prior to being pumped from a temporary pond to be used for lawn watering in the vicinity of the discharge from the 24 inch pipe. Sampling by the permittee for compliance with the monitoring requirements specified above for pH and Oil and Grease shall be performed at the following locations: either at outfall 006 or at the discharge side of the oil/water separator when there is no flow during weekly monitoring at outfall 006. In reporting the results for pH and oil and grease(O&G)for these locations,PSC shall indicate the sampling location. This information can be indicated by PSC either as a note in the cover letter for the discharge monitoring report(s)or a: a note in the comments section of the discharge monitoring report;the note will identify whether sampling occurred fox pH and O&G at the outfall 006 monitoring point described in the permit or at the discharge side of the oil/water separator following the Turbine Building Sump. If the permittee,using the approved analytical methods,monitors any parameter more frequently than required by this permit,then the results of such monitoring shall be included in the calculation and reporting of the values required in the Discharge Monitoring Report Form(DMRs)or other forms as required by the Division. Such increased frequency shall also be indicated. • PART I - Page No.14 Permit No.:CO-0001121 . MONITORING REQUIREMENTS Frequency and Sample Type(Continued) c. Outfall 007 Effluent Parameter Measurement Frequency Sample Tvoe Flow,MGD Weekly Instantaneous Oil and Grease,mg/1 Weekly • Visual. pH,s.u.(minimum-maximum) Weely Grab Total Suspended Solids(TSS),mg/l Monthly Grab Total Residual Chlorine,mg/L Monthly Grab BOD,s,mg/1 Monthly Grab Fecal Coliform Bacteria,#1100 ml Monthly Grab Self-monitoring sampling by the permittee for compliance with the monitoring requirements specified above shall be performed at the following location:outfall 007. Outfall 007 is the internal discharge from the domestic sewage treatment system from the last treatment unit,prior to mixing with other waters,as shown in Figure 3. .If the permittee,using the approved analytical methods,monitors any parameter more frequently than required by this permit, then the results of such monitoring shall be included in the calculation and reporting of the values required in the Discharge Monitoring Report Form(DMRs)or other forms as required by the Division. Such increased frequency shall also be indicated. • d. .Oil and Grease Monitoring For every outfall with oil and grease monitoring,in the event an oil sheen or floating oil is observed,a grab sample shall be • collected,analyzed,and reported on the appropriate DMR. In addition,corrective action shall be taken immediately to mitigate • the discharge of oil and grease. A description of the corrective action taken should be included with the DMR. • Special Monitoring a. One Time Analysis In order to determine the general quality of water discharged at this facility,the permittee is required to perform a one-time analysis for the following parameters at the specified discharge points. The monitoring and analysis shall be performed prior to the implementation of a continuous feed rate for chlorination. Following analysis,the data shall be submitted to the Division within sixty(60)days of the sampling date. Parameter Discharge Point Sample Tvoe Total Residual Chlorine,mg/L 001B or 002,Cooling Tower Slowdown Grab Free Available Chlorine,mg/L 0018 or 002,Cooling Tower Slowdown Grab. b. $ix Time Analysis In order to determine the general quality of water discharged at this facility,the permittee is required to perform a six-time analysis for the following parameters at the specified discharge points. The monitoring and analysis shall be performed at the first instance of discharge after the implementation of a continuous feed rate for chlorination. Following analysis,the data shall be submitted to the Division within sixty(60)days of the last sampling date. Parameter Discharge Point Sample Tyne Total Residual Chlorine,mg/L 001B or 002,Cooling Tower Slowdown Grab Free Available Chlorine,mg/L 00IB or 002,Cooling Tower Slowdown Grab . ,, ;LADED:APRIL 19,2004 EFFECTIVE: JUNE 1,2004 EXPIRES: JANUARY 31,2007 PART I • Pe it 15 Permit No.:No.:CO-0001121 B. MONITORING REQUIREMENTS 2. Special Monitoring(Continued) If evaluation of the data demonstrates a definite or probable violation of water quality standards,the permit may be amended to incorporate additional monitoring and/or limitations,as allowed under Part 11.B.5 of this permit Additional monitoring may also be required where the detection limit for a parameter is above the appropriate water quality standards. C. DEFINITIONS OF TERMS 1. "Acute Toxicity"means there shall be no acute toxicity in the effluent from this discharge point. The acute toxicity limitation is exceeded if 1)a statistically significant difference in mortality(at the 95%confidence level)is observed for either species between the control and any dilution less that or equal to the identified IWC or 2)a species mortality in any dilution of effluent(including 100%effluent)exceeds 50%. 2. "Composite"sample is a minimum of four(4)grab samples collected at equally spaced two(2)hour intervals and proportioned according to flow. 3. "Continuous"measurement,is a measurement obtained from an automatic recording device which continually measures provides measurements. 4. "Daily Maximum limitation"means the limitation for this parameter shall be applied as an instantaneous maximum(or,for pH or DO,instantaneous minimum)value. The instantaneous value is defined as the analytical result of any individual sample. DMRs shall include the maximum(and/or minimum)of all instantaneous values within the calendar month. Any instantaneous value beyond the noted daily maximum limitation for the indicated parameter shall be considered a violation of this permit. 5. "Dissolved(D)metals fraction"is defined in the)3asic Standards and Methodologies for Surface Water 1002-31,as that portion of a water and suspended sediment sample which passed through a 0.40 or 0.45 UM(micron)membrane filter. Determinations of"dissolved"constituents are made using the filtrate. This may include some very small(colloidal) suspended particles which passed through the membrane filter as well as the amount of substance present in true chemical solution. 6. "Grab"sample,is a single"dip and take"sample so as to be representative of the parameter being monitored. 7, "In-situ"measurement is defined as a single reading,observation or measurement taken in the field at the point of discharge. 8. "Instantaneous"measurement is a single reading,observation,or measurement performed on site using existing monitoring facilities. 9. "Potentially dissolved(PD)metals fraction"is defined in the Basic Standards and Methodologies for Surface Water 1002- 31,as that portion of a constituent measured from the filtrate of a water and suspended sediment sample that was first treated with nitric acid to a pH of 2 or less and let stand for 8 to 96 hours prior to sample filtration using a 0.40 or 0.45-UM (micron)membrane filter. Note the"potentially dissolved"method cannot be used where nitric acid will interfere with the analytical procedure used for the constituent measured. 10. "Quarterly measurement frequency" means samples may be collected at any time during the calendar quarter if a continual discharge occurs. If the discharge is intermittent,then samples shall be collected during the period that discharge occurs. • 11. "Recorder"requires the continuous operation of a chart and/or totalizer(or drinking water rotor meters or pump hour meters where previously approved.) PART I • r N it Permit No.:.:CO-0001121 C. •DEFINITIONS OF TERMS(CONTINUED) 12. "Seven(7)day average"means,with the exception of fecal coliform bacteria,the arithmetic mean of all samples collected in a seven(7)consecutive day period. For fecal coliform bacteria,it is the geometric mean of all samples taken in a seven (7)consecutive day period. Such seven(7)day averages shall be calculated for all calendar weeks,which are defined as beginning on Sunday and ending on Saturday. If the calendar week overlaps two months(i.e.the Sunday is in one month and the Saturday in the following month),the seven(7)day average calculated for that calendar week shall be associated with the month that contains the Saturday. Samples may not be used for more than one(1)reporting period. (Not applicable to fecal coliform determinations.) 13. "Thirty(30)day average"means,except for fecal coliform bacteria,the arithmetic mean of all samples collected during a thirty(30)consecutive-day period. For fecal coliform bacteria,it is the geometric mean of all samples collected in a thirty (30)day period. The permittee shall report the appropriate mean of all self-monitoring sample data collected during the calendar month on the Discharge Monitoring Reports. Samples shall not be used for more than one(1)reporting period. 14. "Total Metals"means the concentration of metals determined on an unfiltered sample following vigorous digestion(Section 4.1.3),or the sum of the concentrations of metals in both the dissolved and suspended fractions,as described in"Manual of Methods for Chemical Analysts of Water and Wastes,"U.S.Environmental Protection Agency,March 1979,or its equivalent. 15. "Total Recoverable Metals"means that portion of a water and suspended sediment sample measured by the total recoverable analytical procedure described in"Methods for Chemical Analysis of Water and Wastes, "U.S.Environmental Protection Agency,March 1979 or its equivalent. 16. "Twenty four(24)hour composite"sample is a combination of at least eight(8)sample aliquots of at least 100 milliliters, • collected at equally spaced intervals during the operating hours of a facility over a twenty-four(24)hour period. For volatile pollutants,aliquots must be combined in the laboratory immediately before analysis. The composite must be flow proportional;either the time interval between each aliquot or the volume of each aliquot must be proportional to either the wastewater or effluent flow at the time of sampling or the total wastewater or effluent flow since the collection of the previous aliquot. Aliquots may be collected manually or automatically. 17. "Twice Monthly"monitoring frequency means that two samples shall be collected each calendar month on separate weeks with at least one full week between the two sample dates. Also,there shall be at least one full week between the second sample of a month and the first sample of the following month. 18. "Visual"observation is observing the discharge to check for the presence of a visible sheen or floating oil. 19. "Water Quality Control Division"or"Division"means the state Water Quality Control Division as established in 25-8-101 et al.) Additional relevant definitions are found in the Colorado Water Quality Control Act, CRS§§25-8-101 et sea,,the Colorado Discharge Permit System Regulations,Regulation 61 (5 CCR 1002-61)and other applicable regulations. D. SPECIAL REQUIREMENTS 1. Materials Containment Plan Pursuant to Sections 61.8(3)(g)and(r)of the Colorado Discharge Permit System Regulations,the permittee is required to submit a Materials Containment Plan. Such a plan was previously submitted to the Division. An update of the plan shall be submitted to the Division within ninety(90)days after the effective date of this permit and must be implemented. The • update of the plan shall include changes in the information and procedures for the prevention and containment of spills of materials used,processed or stored at the facility which if spilled would have a reasonable probability of having a visible or otherwise detrimental impact on waters of the State U v. The updated plan shall include,but not necessarily be limited to: PART I • Page No. 17 Permit No.:CO-0001121 1). SPECIAL REQUIREMENTS 1. Materials Containment Plan(Continued) a. An updated history of the spills which have occurred in the three(3)years preceding the effective date of this permit. The history shall include a discussion on the cause of the spills and a the preventative measures designed to eliminate them from reoccurring, b. An update of the reporting system which will be used to notify,at a minimum,responsible facility management,the Division,the Environmental Protection Agency,downstream water users within 5 miles downstream of the facility,and local health officials; c. A description of any changes in the preventative facilities(including overall facility plot)which prevent,contain,or treat spills and unplanned discharges; d. A current list which includes the volumes or quantities of all materials uce4,proceccM or stored at the facility which represent a potential spill threat to surface waters. The location of stored material shall be indicated on the facility plot submitted for item c; e. An implementation schedule for additional facilities which might be required in item c,but which are not yet operational; f. A current list of available outside contractors,agencies,or other sources which could be utilized in the event of a spill in order to clean up its effects. If the facility is capable of handling spills in-house,this shall be documented in the plan;411 g. Provision for yearly review and updating of the contingency plan,plus resubmission of the plan to the Division if conditions and/or procedures at the facility change the original plan. The foregoing provisions shall in no way render inapplicable those requirements imposed by the Federal Water Pollution Control Act,33 U.S.C. § 1321,regulations promulgated thereunder,the Colorado Water Quality Control Act,and regulations promulgated thereunder. It is recommended that this plan be prepared by a professional engineer registered in the State of Colorado. Nothing herein contained shall be construed as allowing any discharge to waters of the State other than through the • discharge points bpct.ifically authorized in this permit. Nothing herein contained shall be construed as excusing any liability the permittee might have,civil or criminal,for any spill. The submittal of a Spill Prevention Control and Countermeasure Plan(SPCC Plan)as required by 40 CFR Part 112 may satisfy all or part of this requirement. Should additional materials exist on site which are not addressed in the SPCC Plan, addressing those materials as per the above is required. V If there u no such material present at the site,thus shall be indicated in writing and submitted to the Division for review. a/ If there is material present but the permittee feels there is not a reasonable probability of a spill impacting waters of the State,this shall be documented in writing and submitted to the Division for review. This documentation shall include;1)distance to nearest surface waters,and;2)a detailed description of any structure which prohibit the release of material onto the ground or into a conveyance system. 2. Stormwater Requirements a. General Limitations • 1. Stormwater discharges from industrial activities shall not cause or threaten to cause pollution,contamination or degradation of State waters. 2. Bulk storage structures for petroleum products and other chemicals shall have adequate protection so as to contain all spills and prevent any spilled material from entering State waters. PART I • Page No. 18 Permit No.:CO-0001121 D. SPECIAL REQUIREMENTS 2. Stormwater Requirements a General Limitations(Continued) 3. No chemicals are to be added to the discharge unless permission for the use of a specific chemical is granted by the Division. In granting the use of such chemicals,special conditions and monitoring may be addressed by separate letter. 4. All dischargers must comply with the lawful requirements of counties,drainage districts and other state or local agencies regarding any discharges of stormwater to storm drain systems or other water courses under their jurisdiction. b. Stormwater Management Plan-Contents and Requirements Fort St,Vrain Station shall maintain a current Stormwater Management Plan(SWMP). The SWMP shall include the following items,at a minimum; The plan shall identify potential sources of pollution which may reasonably be expected to affect the quality of stormwater discharges associated with industrial activity from St.Vrain Station. In addition,the plan shall describe and ensure the implementation of practices which are to be used to reduce the pollutants in stormwater discharges associated with industrial activity at St.Vrain Station and to assure compliance with the terms and conditions of this permit. • Public Service Company must implement the provisions of the SWMP required under this part as a condition of this permit The Division reserves the right to review the plan,and to require additional measures to prevent and control pollution as needed. The SWMP shall include the following items,at a minimum: 1. Industrial Activity Description. The plan shall provide a narrative description of the industrial activity taking place at St.Vrain Station. 2. Site Map. The plan shall include a she map indicating an outline of the drainage area of each stormwater outfall (to the extent possible),each existing structural control measure to reduce pollutants in stormwater runoff and surface water bodies. 3. Stormwater Management Controls. The SWMP shall include a description of stormwater management controls to be implemented at St.Vrain Station. The appropriateness and priorities of controls in a plan shall reflect identified potential sources of pollutants at the facility. The description of stormwater management controls shall address the following minimum components,including a schedule for implementing such controls: A) SWMP Administrator-The SWMP shall identify a specific individual(s)within the plant organization who is responsible for developing the SWMP and assisting the plant manager in its implementation,maintenance, and revision. The activities and responsibilities of the administrator shall address all aspects of the facility's SWMP. B) Identification of Potential Pollutant Sources and Best Management Practices-The SWMP shall identify potential sources of pollutants at the site,and assess the potential of these sources to contribute pollutants to stormwater discharges associated with industrial activity. The SWMP must also describe appropriate Best • Management Practices(BMPs)to reduce the potential of these sources to contribute pollutants to stormwater discharges. At a minimum,each of the following shall be evaluated for the reasonable potential for contributing pollutants to runoff: PARTI • Page No. 19 Permit No.:.:CO-0001121 D. SPECIAL REQUIREMENTS 2. Stormwater Requirements b. Stormwater Management Plan-Contents and Reouirements 3. Stormwater Management Controls B) Identification of Potential Pollutant Sources and Best Management Practices (Continued) ✓ Loading and unloading operations. ✓ Outdoor storage activities. ✓ Outdoor manufacturing or processing activities. I Significant dust or particulate generating processes. I On-site waste disposal practices. I The presence of salt piles. ✓ SARA Title III Section 313 Water Priority Chemicals. I Areas where significant spills and significant leaks of toxic or hazardous substances have occurred at the facility from three years prior to permit certification to the time of SWMP preparation. Factors to consider include the toxicity of chemicals;quantity of chemicals used,produced,or discharged;the likelihood of contact with stormwater,and history of significant leaks or spills of toxic or hazardous substances. The description of the BMPs shall include:• i) Stormwater diversion:Describe how and where stormwater will be diverted away from industrial areas to prevent stormwater contamination. ii) Materials handling and spill prevention:Where materials can impact stormwater runoff,existing practices that reduce the potential for contamination shall be described. For example,materials shall be stored and handled in covered areas to prevent contact with stormwater,and chemicals shall be stored within berms or secondary containment devices to prevent leaks and spills from entering stormwater runoff. iii) Sediment and erosion prevention:The plan shall identify areas which,due to topography,activities,or other factors,have a high potential for significant soil erosion,and identify measures taken to limit erosion. iv) Other pollution prevention measures:The plan shall identify any other structural and non-structural measures for stormwater quality control on-site. In each case where stormwater pollution potential exists,appropriate preventive measures mustbe taken and documented. C) Sampling Information-The plan shall include a summary of any existing discharge sampling data describing pollutants in stormwater discharges,and a description of each proposed sampling point,should monitoring be required. D) Preventive Maintenance-A preventive maintenance program is required,and shall involve inspection and maintenance of stormwater management devices(cleaning oil/water separators,catch basins,etc.)as well as inspecting and testing plant equipment and systems to uncover conditions that could cause breakdowns or • failures resulting in discharges of pollutants to surface waters. 5. Good Housekeeping-Good housekeeping requires the maintenance of a clean,orderly facility. This part of the SWMP shall address cleaning and maintenance schedules,trash disposal and collection practices,grounds maintenance,etc. PART I Page No.20 • Permit No.:CO-0001121 D. SPECIAL REQUIREMENTS 2. Stormwater Requirements b. Stormwater Management Plan-Contents and Requirements (Continued) 6. Spill Prevention and Response Procedures-Areas where potential spills can occur,and their accompanying drainage points,shall be identified clearly in the SWMP. Where appropriate,specifying material handling procedures and storage requirements in the plan shall be considered. Procedures for cleaning up spills shall be identified in the plan and made available to the appropriate personnel. The necessary equipment to implement a clean up shall be available to personnel. 7. Employee Training-Employee training programs shall inform personnel at all levels of responsibility(who are involved in industrial activities that may impact stormwater runoff)of the components and goals of the SWMP. Training shall address topics such as spill response,good housekeeping and material management practices. The SWMP shall identify periodic dates for such training. Contractor or temporary personnel shall be informed of plant operation and design features in order to prevent discharges or spills from occurring. 8. Identification of Discharges other than Stormwater-The stormwater conveyance system on the site shall be evaluated for the presence of discharges other than stormwater. The SWMP shall include a description of the results of any evaluation for the presence of discharges other than stormwater,the method ucrd,the date of the evaluation,and the on-site drainage points that were directly observed during the evaluation. A number of discharges other than stormwater may not require a CDPS Industrial Wastewater Discharge permit . and are considered Allowable Non-Stormwater Discharges. Any of these discharge that exist at the site must be identified in the SWMP. See Part I.D.2.d.2.of the permit for the list of such allowable discharges. 9. Comprehensive Inspections. The SWMP shall identify qualified personnel that shall inspect designated equipment and plant areas. The procedures and intervals of the comprehensive inspection shall also be specified in the plan and shall be consistent with Part I.D.2.e. Comprehensive inspections shall in no case be completed less than twice a year(in the spring and fall). The operator shall keep a record of such inspections. This record shall be made available to the Division upon request and summarized in the Annual Report. 10. Consistency with Other Plans. SWMPs may reflect requirements for Spill Prevention Control and Countermeasure (SPCC)plans under section 311 of the CWA,or Best Management Practices(BMPs)Programs otherwise required by a CDPS permit,and may incorporate any part of such plans into the SWMP by reference. c. atormwater Management Plan Review,Implementation,and Compliance 1. SWMP Retention: A current copy of the SWMP shall be retained on site. 2. SWMP Review/Changes: Upon review of the SWMP,the Division may notify the permittee at any time that the plan does not meet one or more of the minimum requirements of this permit. After such notification,the permittee shall make changes to the plan and chat]submit to the Division an update to the plan including the requested changes. Unless otherwise provided by the Division,the permittee shall have 30 days after such notification to both make the necessary changes to the plan and to implement them. • The permittee shall amend the plan whenever there is a change in design,construction,operation,or maintenance which has a significant effect on the potential for the discharge of pollutants to the waters of the State,or if the SWMP proves to be ineffective in achieving the general objectives of controlling pollutants in stormwater discharges associated with industrial activity. Amendments to the plan should be submitted to the Division with • the following Annual Report. The Division reserves the right to require additional measures to prevent and control pollution,as needed. PART • Page No. Perm Ndt No.:.:CO-0001121 D. SPECIAL REQUIREMENTS 2. Stormwater Requirements(Continued) d. Prohibition of Non-stormwater Discharges 1. Except as provided in paragraph 2.,below, all discharges authorized by this permit shall be composed entirely of stormwater. Discharges of material other than stormwater must be addressed in a separate CDPS permit issued for that discharge. 2. Discharges from the following sources that are combined with stormwater discharges associated with heavy industrial activity may be authorized by this permit,provided that the non-stormwater component of the discharge is identified in the SWMP: fire fighting activities,uncontaminated compressor condensate,irrigation drainage, lawn watering,air conditioner condensate,uncontaminated springs,and foundation or footing drain where flows are not contaminated. e. Facility Inspections Qualified personnel identified by the operator shall make a comprehensive inspection of their stormwater management system,at least twice per year(in the spring and fall. These comprehensive inspections must be documented and summarized in the Annual Report(see Part I.D.2.g. of the permit). 1. Material handling areas,disturbed areas,areas used for material storage that are exposed to precipitation,and other potential sources of pollution identified in the SWMP in accordance with Part I.D.2.b.3.B.of this permit shall be inspected for evidence of,or the potential for,pollutants entering the drainage system. Structural • stormwater management measures,sediment and control measures,and other structural pollution prevention measures identified in the plan shall be observed to ensure that they are operating correctly. A visual inspection of equipment needed to implement the plan,such as spill response equipment,shall be made. 2. Based on the results of the inspection,the description of potential pollutant sources and pollution prevention measures identified in the plan shall be revised as appropriate within two weeks of such inspection. Such revisions shall provide for implementation of any changes to the plan in a timely manner,but in no case more than 90 days after the inspection. 3. A report summarizing the scope of the inspection,personnel making theinspection,the date(s)of the inspection, major observations relating to the implementation of the SWMP,and actions taken in accordance with paragraph 2.,above,shall be made and retained as part of the SWMP for at least three years. The report shall be signed in accordance with Part I.E.6.of this permit. £ SWMP Availability A copy of the SWMP shall be provided to EPA upon request,and within the time frame specified in the request. All SWMPs required under this permit are considered reports that shall be available to the public under Section 308(b) of the CWA The owner or operator of a facility with stormwater discharges covered by this permit shall make plans available to members of the public upon request. However,the permittee may claim any portion Pia stormwater pollution plan as confidential in accordance with 40 CFR Part 2. & Annual Report The permittee will be required to submit an Annual Report,covering October 1 through September 30 of each year, • on the overall compliance with the SWMP. The Annual Report shall contain,at a minimum: 1. Name of permittee,address,phone number,and permit certification number. 2. A report on the facility's overall compliance with the SWMP. PARTI Page No.22 . Permit No.:CO-0001121 D. SPECIAL REQUIREMENTS 2. Stormwater Requirements g. Annual Report(Continued) 3. Changes made in the individual items of the SWMP,and any proposed changes. 4. A summary of each comprehensive stomnvater facility inspection made,including date,findings,and action taken. The annual report will be due to the Division on or before November 28 of each year. All reports required for submittal shall be signed and certified for accuracy by the permittee. (See Part I.E.6.of the permit) E. GENERAL MONITORING,SAMPLING AND REPORTING REQUIREMENTS 1. Routine Reporting of Data Reporting of the data gathered in compliance with Part LB.1 shall be on a monthly basis. Reporting of all data gathered shall comply with the requirements of Part I.E.(General Requirements). Monitoring results shall be summarized for each calendar month and reported on Division approved discharge monitoring report(DMR)forms(EPA form 3320-1). The forms shall be mailed to the agencies listed below so they are received no later than the 28th day of the following month. If no discharge occurs during the reporting period, "No Discharge"shall be reported. • The DMR forms consist of four pages-the top"original"copy,and three attached no-carbon-required copies. After the DMR form has been filled out and signed,the four copies must be separated and distributed as follows: The first original signed copy of each discharge monitoring report(DMR)shall be submitted to the Division at the following address: Colorado Department of Public Health and Environment Water Quality Control Division WQCD-P-B2 4300 Cherry Creek Drive South Denver,Colorado 80246-1530 • The fast duplicate signed copy of each discharge monitoring report(DMR)shall be submitted to the following agency: U.S.Environmental Protection Agency Region VIII Technical Enforcement Program(8ENP-T) Office of Enforcement,Compliance Assistance and Environmental Justice 999 18th Street,Suite 500 Denver,CO 80202-2466 The third and fourth copies are for the permittee records. The Discharge Monitoring Report forms shall be filled out accurately and completely in accordance with requirements of this permit and the instructions on the forms. They shall be signed by an authorized person as identified in Part I.E.6. Calculations for all limitations which require the averaging of measurements shall utilize an arithmetic mean unless otherwise specified by the Division in the permit. • PART I • Page No. Permit No.:CO-0001121 E. GENERAL MONITORING,SAMPLING AND REPORTING REQUIREMENTS(CONTINUED) 2. Representative Sampling Samples and measurements taken as required herein shall be representative of the volume and nature of the monitored discharge. All samples shall be taken at the monitoring points specified in this permit and,unless otherwise specified, before the effluent joins or is diluted by any other wastestream,body of water,or substance. Monitoring points shall not be changed without notification to and approval by the Division. If the permittee monitors at the point of discharge any pollutant limited by the permit more frequently than required by the permit,using approved test procedures or as specified in the permit,the result of this monitoring shall be included in the calculation and reporting of data to the Division. 3. Analytical and Sampling Methods for Monitorfna The permittee shall install, calibrate,use and maintain monitoring methods and equipment,including biological and indicated pollutant monitoring methods. All sampling shall be performed by the permittee according to specified methods in 40 C.F.R.Part 136;methods approved by EPA pursuant to 40 C.F.R.Part 136;or methods approved by the Division,in the absence of a method specified in or approved pursuant to 40 C.F.R.part 136. The analytical method selected for a parameter shall be the one that tau measure the lowest detected limit for that parameter unless the permit limitation or stream standard for those parameters not limited,is within the testing range of another approved method. When requested in writing,the Division may approve an alternative analytical procedure or any significant modification to an approved procedure. • When the most sensitive analytical method which complies with this part,has a detection limit greater than or equal to the permit limit,the permittee shall report"less than(the detectable limit),"as appropriate. Such reports shall not be considered as violations of the permit limit. The present lowest method detection limits for specific parameters(which have limitations that are,in some cases,less than or equal to the detection limit)are as follows: Effluent Characteristic Method Detection Limits,mg/1 Arsenic 0.01 Benzene 0.001 Total Residual Chlorine 0.05 Cadmium 0.0003 Chromium 0.01 Chromium,Hexavalent 0.01 Copper 0.005 Lead 0.005 Total Mercury 0.00025 Nickel 0.05 Selenium 0.01 Silver 0.0002 Zinc 0.05 These limits apply to the total recoverable or the potentially dissolved fraction of metals. For hexavalent.chromium,samples must be unacidified so dissolved concentrations will be measured rather than potentially dissolved concentrations. The procedure for determining settleable solids is contained in 40 CFR 434.64. The method detection limit for measuring settleable solids under this part shall be 0.4 m1/1. PARTI • Page No. Permit N No.:.: CO-0001121 E. GENERAL MONITORING,SAMPLING AND REPORTING REQUIREMENTS (CONTINUED) 4. Records The permittee shall establish and maintain records. Those records shall include the following: a. The date,type,exact location,and time of sampling or measurements; b. The individual(s)who performed the sampling or measurements; c. The date(s)the analyses were performed; d. The individual(s)who performed the analyses; e. The analytical techniques or methods used; f. The results of such analyses;and g. Any other observations which may result in an impact on the quality or quantity of the discharge as indicated in 40 CFR 122.44(i)(1)(iii). The permittee shall retain for a minimum of three(3)years records of all monitoring information,including all original strip chart recordings for continuous monitoring instrumentation,all calibration and maintenance records,copies of all reports required by this permit and records of all data used to complete the application for this permit This period of retention shall be extended during the course of any unresolved litigation regarding the discharge of pollutants by the permittee or when requested by the Division or EPA. 5. Flow Measuring Device • If not already a part of the permitted facility,within ninety(90)days after the effective date of the permit,a flow measuring device shall be installed to give representative values of effluent quantities at the respective discharge points. Unless • specifically exempted,or modified in Part IRS of this permit,a flow measuring device will be applicable at all designated discharge points. At the request of the Division,the permittee shall show proof of the accuracy of any flow-measuring device used in obtaining data submitted in the monitoring report. The flow-measuring device must indicate values within ten(10)percent of the actual flow being discharged from the facility. 6. Signatory and Certification Requirements a. All reports and other information required by the Division,shall be signed and certified for accuracy by the permittee in accord with the following criteria: i) In the case of corporations,by a principal executive officer of at least the level of vice-president or his or her duly authorized representative,if such representative is responsible for the overall operation of the facility from which the discharge described in the form originates; ii) In the case of a partnership,by a general partner, iii) In the case of a sole proprietorship,by the proprietor; iv) In the case of a municipal,state,or other public facility,by either a principal executive officer,ranking elected official,or other duly authorized employee. b. All reports required by permits,and other information requested by the Division shall be signed by a person as described above or by a duly authorized representative of that person. A person is a duly authorized representative only if • i) The authorization is made in writing by a person described above; PART I • N Page No. Permit No.:,: CO-0001121 E. GENERAL MONITORING,SAMPLING AND REPORTING REQUIREMENTS 6. Sia_natory and Certification Requirements(Continued) il) The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity such as the position of plant manager,operator of a well or a well field, superintendent,position of equivalent responsibility,or an individual or position having overall responsibility for environmental matters for the company. (A duly authorized representative may thus be either a named individual or any individual occupying a named position);and, iii) The written authorization is submitted to the Division. If an authorization as described in this section is no longer accurate because a different individual or position has responsibility for the overall operation of the facility,a new authorization satisfying the requirements of this section must be submitted to the Division prior to or together with any reports,information,or applications to be signed by an authorized representative. The perniittee,or the duly authorized representative shall make and sign the following certification on all such documents; "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,or those persons directly responsible for gathering the information,the information submitted is to the best of my knowledge and belief;true,accurate and • complete. I am aware that there are significant penalties for submitting false information,including the possibility of fine and imprisonment for knowing violations." i • PART I Page No.26 .-- Permit No.:CO-0001121 • am i,,er.a„, , hpvreiek 'Jr 1....:, "' 4 tn.: - c til-7.4, _Y" • Ilir ivigw. no,,idirm./ ,i/ A �- ► 27 el_dill '' I, • t ,,,,.i . . eT A • IL NY://yffidi lefil, 36 wells ,. eft. a 't iti1 `, 36 �j 1 aitgi ; .- reimman --pas 1-,,,...44 ., -.gin: tc. • , 2 �� /ur l' SORT ST WAN STATIO�i IP ratan 1 ird I • A, -Ai .__,ra;r A_-1.74,07.4.-.)::„.1,:c. , .Y i Welh 11 t . 1, \ ..:_. 2 . i iaw 11 rt 'C -r l .,�� PLATTEVII I E,CO ,��-7�J��`. ' Js '�r 1 : \ 1 li ii 1 r.. Ni 23!, , !'EL I] Well�. - 1 lightl. II JCA w+nda4 . BM I - m, • FIGURE 1. Fort St,Vrain Station SITE LOCATION MAP . • • Page I ' • Page No.27 PermitNo.: CO-0001121 r J.n 21,2002 a • 2r eb.. DP till -f wulu4Atq _. ,p_. ---.. tuM . Ta.. r XDP-002 f �--—_ n q R� I O I • ' w_ 1 • r weW • gel ants ¢ �RR Maw Own ""q� M- fa IevaM1ppav PAW L— P A P. riT4 41 1 trot; part r ee. — ' MO bp.dawn Men [II "43F • r va ! Vwn I . L AMAan B— ,t. • .by power. station e , A 1 g s € b t . y Ttlw 1O03 a wr 12 © . 5 wait iwPWrm. • I PARTI _ Page No. 28 • Permit No.:CO-0001121 t SOUTH PLATTE RIVER SAINT VRAIN CREEK .,OVERFLOW NORTH • 001A r FARM POND r i -\\*-----"A UPPER �� GOOSEQUILL DITCH J`f • • 1k\ • DRAINAGE JAY SLOUGH THOMAS DITCH e GOOSEQUILL i i _ STUB PIPELINE .(J- • 002 +O,B FORT ST. - -?7,- PIPELINE ♦ VRAIN �i litA05 STATION 003 004 -4F LOWER ii-----\ GOOSEQUILL DITCH FIGURE 3 \\.....r\c„ •III e.„......) F St.V Station FACILITY AND DISCHARGE POINT LOCATIONS • A PUMP AND INTAKE STRUCTU 'I • DISCHARGE POINT Kim Ogle iim: Thomas Honn t: Tuesday, December 11, 2007 8:35 AM Hannah Hippely; Kim Ogle Subject: FW: Ft. Saint Vrain CPCN 07A-469E Filing for Transmittal to Weld County Attachments: Direct Testimony& Exhibits Hyde.pdf; Direct Testimony& Exhibits_Ford.pdf; Direct Testimony_Lupo.pdf; Direct Testimony_Magno.pdf; Direct Testimony& Exhibits_Stellern.pdf it Direct Testimony&Direct Testimony& Direct Direct Direct Testimony& Exhibits_Hy... Exhibits_Fo... :imony_Lupo.pdf(lEimony_Magno.pdf(: Exhibits_St... Original Message From: Thompson, Rick L [mailto:Rick.Thompson@XCELENERGY.COMj Sent: Monday, December 10, 2007 4:46 PM To: Thomas Honn Subject: Ft. Saint Vrain CPCN 07A-469E Filing for Transmittal to Weld County Tom - Here is the second subject e-mail for your consideration conveying a portion of previously referenced CPCN filing to the Colorado Public Utilities Commission. The cover letter is attached to the first e-mail. Please e-mail me to let me know you received these or if you have any questions. Ilianks - ick Thompson Supervisor-Siting and Land Rights Xcel Energy 550 15th Street, Suite 700 Denver, CO 80202 303-571-7284 Direct Testimony& Exhibits of K. Hyde, G. Ford, J. Lupo, G. Magno&G. Stellern: «Direct Testimony 8, Exhibits_Hyde.pdf» «Direct Testimony& Exhibits_Ford.pdf» «Direct Testimony_Lupo.pdf» «Direct Testimony_Magno.pdf» «Direct Testimony& Exhibits_Stellern.pdf» • 1 Xce/Enerd C Siting and Land Rights ounty Planning Department 550 15th Street, 7th Floor • GREELEY OFFICE Denver, CO 80202-4205 JAN 18 2008 January 8, 2008 RECEIVED INVITATION Proposal to add two new combustion turbines at the Fort Saint Vrain Generating Station, Platteville, CO This letter is to inform of you of an Xcel Energy project in your area and invite you to an informational meeting and tour of the project site. Public Service Company of Colorado, an Xcel Energy company, is proposing to install two natural gas-fired combustion turbines on the east side of the existing plant facility. The new combustion turbines are nearly identical to the three combustion turbines currently in operation at the site. The turbine units are needed to generate electricity for peak periods of energy demand, primarily in the summer, and to help provide back-up power as we add more wind power to our system. To provide fuel for the new units, a new 12-inch natural gas pipeline also would be constructed from an existing meter station to the new turbines on the • plant site. Additional information about the proposed project is provided in the attached fact sheet. Please join us for an informational meeting and tour scheduled for: Date: Friday, January 25th 2008 Time: 3:00-4:30 PM Place: Fort Saint Vrain Generating Station Visitor's Center (located across from the main plant entrance) If you are unable to attend the meeting, Xcel Energy staff can meet with you individually if requested. To arrange a meeting or obtain additional information about the project, please contact Jason Manassee at (303) 571-7759 orjason.manassee@xcelenergy.com. Sincerely, Jason±ee Senior Agent, Siting and Land Rights Public Service Company of Colorado • A ROPOSED FORT SAINT VRAIN GENERATING FACILITY OMBUSTION TURBINE INSTALLATION PROJECT OVERVIEW Combustion Turbines This project will involve construction and installation of two new, peak-load, gas-fired, simple cycle electric generating units and a new 12-inch natural gas pipeline located at the Fort Saint Vrain (FSV) Generating Facility property. The new combustion turbines are similar to the three combustion turbines currently in operation at the site, but without the heat recovery steam generating components. A new gas pipeline providing fuel to the new turbine units will also be added. The new gas pipeline will generally parallel the existing pipeline that supplies gas to the existing turbines. Natural Gas Supply Pipeline for New Combustion Turbines The installation of the new turbines will require the construction of approximately one mile of - high-pressure natural gas pipeline on-site because the existing pipeline does not have enough capacity to meet the natural gas requirements of the new turbines. The new pipeline will originate at the existing metering station located at the corner of Weld County Road 34 and Weld County Road 19'/2.This will be a 12-inch diameter, high-pressure pipe designed for I. - 1 ,000 pounds per square inch (PSI), however the pipeline will operate in the range of 450-500 PSI . , PROJECT LOCATION , - ` The FSV Generating Facility is located in southwest Weld County, Colorado, approximately ree miles north and west of Platteville. The plant site is located southwest of Milliken, just st of County Road 191/2, and north of County Road 34.The confluence of Saint Vrain Creek and the North Platte River is located just north of the plant's northern boundary line. Public Service Company (PSCo),an Xcel Energy Company, currently operates the FSV Generating - Station under a Weld County Use by Special Review permit. I RESOURCE PLANNING AND NEED FOR PROJECT PSCo's resource planning process includes a resource acquisition strategy that relies on competitive bidding to identify new supply-side and demand-side resource options. Supply-side alternatives include conventional generation technologies such as gas and coal resources, and renewable technologies such as wind and solar. On the demand-side, technologies involve measures and programs to conserve energy and reduce demand. After PSCo receives bids in response to a competitive solicitation, we undertake a rigorous evaluation of alternatives to identify an energy supply ___ -_ .-_- . _ - portfolio that meets the objectives noted above. The proposed FSV turbine project results from the failure of one of the projects PSCo selected through its 2003 Resource Plan. Specifically, . .,� in late August 2007 we learned that a natural gas turbine project under development in El Paso l County could not be completed under the terms of our power purchase contract. Due to the w 'ct' ��! (- -- --- failure of this development, PSCo is proposing to build and own the two gas turbines proposed .a, • ; ?.., '' at FSV as a contingency plan to replace the lost power. 'V is 1 n-00 • . , +!. PSCo's Resource Plan also contains a contingency plan to cover such events as a delay in the -° _ �` q -c -� in-service dates of new power supplies, or an unanticipated increase in customer demand that E- - . , the company must serve. Upon learning that the project in El Paso County could not meet its in-service date, we evaluated alternatives in our contingency plan to determine how to replace the lost power. The selected alternative was to build and own new equipment at an existing , company-owned generation site. We determined this was the only workable solution due to the "tort timeframe available for permitting, engineering , constructing and commissioning a the new uipment. V Xcel Energy We identified the Fort Saint Vrain site as the preferred alternative after evaluating several potential development sites. The primary criteria that led to our selection were that key infrastructure is already owns sufficient real estate to accommodate the proposed turbines. With respect to infrastructure, the site offers ready access to adequate supplies of natural gas, as well as adequate injection capacity on the electric transmission system. The site's existing electrical and mechanical systems, and its water and wastewater systems can be readily adapted to add the proposed turbines. Moreover, the site has good regional highway and rail access, and well-developed roads and parking on-site. Another advantage of the site is that it is already zoned for industrial use. (Photo simulation of the two new turbines to be located just east of the existing turbines (Units 2,3 & 4) OPERATION Current Capacity During the summer, the existing FSV Generating Facility produces 720 megawatts (MW) of power, With three combustion turbines producing 140 MW each, and the original steam turbine producing 300 MW. Three heat recovery steam generators capture excess heat that would otherwise be vented into the atmosphere, turn it into steam and use it to power the original steam turbine. All three combustion turbines were built with the best available controls technology to reduce emissions. Proposed Capacity The proposed turbines will provide 300 MW of new capacity that is critical to enabling PSCo to meet our customers' summer peak demands in 2009. If Public Service does not have additional capacity on line by the summer of 2009, PSCo will be 371 MW short of its 16 percent reserve margin. This additional capacity will bring FSV's total summer capacity to 1 , 020 MW, making it PSCo's largest gas-fired generator. CONTACT INFORMATION Project Information: Jason Manassee (303) 571 -7759 Xcel Energ 2008 Xcel Energy Inc. Xcel Energy is a registered trademark of Xcel Energ! Public Service Company of Colorado, an Xcel Energ Weld County Planning Department GREELEY OFFICE JAN 17 2000 • RECEIVED STATE OF COLORADO Bill Ritter,Jr.,Governor James B.Martin,Executive Director oFco�o ��_ , Dedicated to protecting and improving the health and environment of the people of Colorado �a; o 4300 Cherry Creek Dr.S. Laboratory Services Division \. rr Denver,Colorado 80246-1530 8100 Lowry Blvd. `re�e1g76. Phone(303)692-2000 Denver,Colorado 80230-6928 TDD Line(303)691-7700 (303)692-3090 Colorado Department Located in Glendale,Colorado of Public Health http://www.cdphe.state.co.us and Environment December 20, 2007 Mr. Steve Moreno Weld County Clerk 1402 N. 17th Ave. Greeley, CO 80631 Dear Mr. Moreno: • The Air Pollution Control Division will publish a public notice for Public Service Company on Colorado. This public notice will be published in the Fort Lupton Press on December 26, 2007. Thank you for assisting the Division by making the enclosed package (includes public notice, preliminary analysis, Air Pollutant Emission Notice(s) and draft permit(s)) available for public review and comment. It must be available for public inspection for a period of thirty (30) days from the date the public notice is published. Please forward any comment regarding this public notice to the address below. Colorado Department of Public Health and Environment APCD-SS-B I 4300 Cherry Creek Drive South Denver, CO 80246-1530 Attention: Jacquie Barela Regard Jacqueline N. Barela Public Notice Coordinator • Stationary Sources Program Air Pollution Control Division r c �tUlczv nr „a/—i-) ?f • NOTICE OF REQUEST FOR CONSTRUCTION PERMITS Public Service Company of Colorado. has submitted an application to construct and operate two (2) additional natural gas fired simple cycle combustion turbines at their Ft. St. Vrain facility. The turbines will be used to generate electricity. This facility is located at 16805 County Road 19 1/2 in Platteville, Colorado, which is in Weld County. BY Public Service Company of Colorado PERMIT NO. 07WE1100 TABLE OF CONTENTS • 1. PUBLIC NOTICE 2. PRELIMINARY ANALYSIS 3. AIR POLLUTANT EMISSIONS NOTICE(S) 4. DRAFT PERMIT Prepared by: Jackie Joyce Colorado Department of Public Health and Environment APCD-SS-B1 4300 Cherry Creek Drive South Denver CO 80246-1530 • STATE OF COLORADO • Bill Ritter,Jr.,Governor James B. Martin,Executive Director • oF• solo �/ ` Dedicated to protecting and improving the health and environment of the people of Colorado F ,''.e)o 4300 Cherry Creek Dr.S. Laboratory Services Division *,rj. ** Denver,Colorado 80246-1530 8100 Lowry Blvd. \�* Phone(303)692-2000 Denver,Colorado 80230-6928 1876 TDD Line(303)691-7700 (303)692-3090 Colorado Deparunent Located in Glendale,Colorado of Public Health http://www.cdphe.state.co.us and Environment Released to: Fort Lupton Press on December 20,2007;published on December 26,2007 PUBLIC NOTICE OF A PROPOSED PROJECT OR ACTIVITY WARRANTING PUBLIC COMMENT The Colorado Air Pollution Control Division has declared that the following proposed construction activity warrants public comment. Therefore, the Air Pollution Control Division of the Colorado Department of Public Health and Environment hereby gives NOTICE, pursuant to Section 25-7-114.5(5), C.R.S. of the Colorado Air Quality Control Act that an application to the Division has been received for an emission permit on the following proposed project and activity: Public Service Company of Colorado has submitted an application to construct and operate two (2) additional natural gas fired simple cycle combustion turbines at their Ft. St. Vrain Station. The turbines will be used to generate electricity. The turbines are permitted to operate at full load for approximately 738 '/2 hours per year. With the limitations on these turbines, emissions from these turbines will be below the significance level. This • facility is located at 16805 County Road 19 'h in Platteville, Colorado, which is location in Weld County. The existing facility is a major stationary source for purposes of prevention of significant deterioration (PSD) and nonattainment area new source review (NANSR) requirements. With the operating limits on the proposed new turbines, this project is considered a synthetic minor modification to an existing major stationary source for purposes of PSD review (with respect to PM, PMi0, NOR and CO) and for purposes of NANSR (with respect to NOR, which is a precursor for ozone). The Division has determined that the turbines will comply with all applicable standards and regulations. The Division therefore proposes to issue the applicant an initial approval permit for the two(2)proposed new turbines. The Division hereby solicits and requests submission of public comment concerning the aforesaid proposed project and activity for a period of thirty (30) days from and after the date of this publication. Comments are solicited on the ability of the proposed project to comply with applicable standards and regulations. Any such comment must be in writing and be submitted to the following addressee: Jacqueline Joyce Colorado Department of Public Health and Environment APCD-SS-B 1 4300 Cherry Creek Drive South Denver, Colorado 80246-1530 Within thirty (30) days following the said thirty (30)-day period for public comment, the Division shall consider comments and, pursuant to Section 25-7-114.5(7)(a), either grant, deny, or grant with conditions, the emission • permit. Said public comment is solicited to enable consideration of approval of and objections to the proposed construction of the subject project and activity by affected persons. A copy of the application for the emission permits,the Preliminary Analysis of said application, and accompanying data concerning the proposed project and activity are available for inspection at the office of the • Clerk and Recorder of Weld County, 1402 N. 17th Avenue, Greeley, CO during regular business hours and at the office of the Air Pollution Control Division, Colorado Department of Public Health and Environment, 4300 Cherry Creek Drive South,Glendale, Colorado. Information is also available on the Division's website at: http://www.cdphe.state.co.us/ap/airpublicnotices.html • AIR POLLUTION CONTROL DIVISION • PRELIMINARY ANALYSIS PERMIT NUMBER: 07WE1100 DATE: December 20, 2007 APPLICANT: Public Service Company of Colorado REVIEW ENGINEER: Jackie Joyce CONTROL. ENGINEER: R. K Hancock, III, P. E. PROJECT DESCRIPTION Public Service Company, submitted an application to construct and operate two (2) additional natural gas fired simple cycle combustion turbines at their Ft. St. Vrain facility. The turbines will be used to generate electricity. The turbines are GE Frame 7FA model combustion turbines. Each unit has a rated heat input of 1,467 mmBtu/hr and output of 174 MW(design) and 146 MW (site). SUMMARY OF EMISSIONS in tons/year Emission for the proposed new turbines are as follows: Emissions (tons/yr) PM PM10 SO2 NOx CO VOC Requested/Permitted Emissions for 13.3 13.3 3.7 39.9 20.0 2.3 Both Turbines i'e ,,., iqcarr 5 s ., g2) , . ? ,....m!. ,a Tn, t.,.f rri. 11 2. .2>,, i },,a;t ₹ f t0 .0.r,'''E f;, •sty,+„,., • Maximum Potential Emissions for 157.7 157.7 43.7 473 236.5 27 Both Turbines' Based on both turbines running for 8760 hours per year. Facility-wide emissions are as follows: Emissions (tons/yr) [ PM PM10 SO2 NOx CO VOC Facility PTE before the Modification 148.3 148.3 14.3 1223.9 1196.1 80.1 Modification PTE (proposed new 13.3 13.3 3.7 39.9 20.0 2.3 turbines) Facility PTE after the Modification 161.6 161.6 18.0 1263.78 1216.1 82.4 Public comment is required for this project, since the permittee is taking operational limits on these turbines to keep emissions below the significance level and avoid major stationary source nonattainment area new source review (NANSR) and prevention of significant deterioration (PSD) review requirements. HAZARDOUS POLLUTANTS (NOTE MAIN TYPES AND QUANTITIES WHICH REQUIRE REPORTING): At the requested fuel consumption levels, the following HAPs exceed the APEN reporting levels: CAS No. Pollutant Emissions CAS No. Pollutant Emissions 50-00-0 Formaldehyde 1538.6 LB/YR LB/YR LB/YR LB/YR LB/YR LB/YR • The above values are based on the source's analysis, which used AP-42 emission factors (Section 3.1, dated April 2000, Table 3.1-3). AMBIENT IMPACT ANALYSIS in micrograms/cubic meter(uq/m3) • The modeling analysis conducted for PM1o, NOx, CO and SO2 indicated that the impacts were below the modeling significance levels for all pollutants. Therefore, no cumulative modeling analysis was required. The modification will not cause of contribute to an exceedance of the NAAQS or CAAQS. SOURCE CLASSIFICATION The Ft. St. Vrain Station is located in an area that is classified as nonattainment for the 8-hour ozone standard and attainment for all other criteria pollutants. The existing facility is a major stationary source for purposes of PSD (potential to emit of PM, PM10, NOx and CO > 100 tons.yr) and NANSR (potential to emit of NOx > 100 tons/yr, NOx is a precursor for ozone) and a major source for purposes of Title V applicability. Potential emissions from the proposed project(two new turbines) exceed the significance level; however, the permittee is taking limitations on the operation of these units to stay below the significance level and avoid PSD and NANSR review requirements. The facility, including the proposed project, is a synthetic minor source for HAPs. RACT ANALYSIS The combustion turbines are subject to reasonably available control technology (RACT) requirements for NOx as specified in Colorado Regulation No. 3, Part B, Section III.D.2.a(i). The current version of Reg 3 does not list VOC emissions in Section III.D.2.a. Although a reg change is in process to include VOC emissions in the list, that change will not take effect until March 2008. Currently RACT has been determined as follows: NOx: RACT has been determined to be Advanced Dry Low NOx (DLN) Combustion Systems with the following emission limits: Except as provided for below, emissions of NOx shall not exceed 9 ppmvd at 15 % O2, on a 1-hr average. During periods of combustion tuning and testing, emissions of NOx shall not exceed 100 ppmvd at 15% • O2, on a 1-hr average. Use of this NOx emission limit for purposes of combustion tuning and testing shall not exceed 60 hours in any calendar year for both turbines combined. Records of the number of hours each turbine undergoes combustion tuning and testing shall be recorded and maintained and made available to the Division upon request. VOC: As indicated above, RACT for VOC does not apply until March 2008. However, in the event that the permit is not issued before the effective date, the Division has conducted a RACT analysis. RACT has been determined to be good combustion practices. • Air Pollution Control Division Construction Permit Application PLEASE READ INSTRUCTIONS ON REVERSE SIDE. • 1. Permit to be issued to: Public Service Company of Colorado 2. Mailing Address: P.O. Box 840 Denver, CO 80201 - 0840 3. General Nature of Business: Electric Generation SIC code(if known) 4911 4. Air Pollution Source Description: Two simple cycle natural gas-fired combustion turbines (List permit numbers if existing source. 96OPWE180 attach additional pages if needed) Is this a Portable Unit? No 5. Source Location Address (Include Location Map) If portable, include the initial location and home base location Fort Saint Vrain Station 16805 County Road 19 1/2 Platteville,CO 80651 6. Reason for Application: (Check all that apply) ❑ New or Previously Unreported Source Administrative Permit Amendments x Modification of Existing Source ❑ Transfer of Ownership (Complete Section 9 & 10 below) x Request for Synthetic Minor Permit ❑ Company Name Change(Complete Section 9 below) ❑ Other: ❑ Other: 7. Projected Startup Date: /�/Q/"MMayayy 2009 ( r Pit III �-� Z� \ _ �.en('!`c NPSl7 cd c�Q Vii, ' ' 1 �� ' `.,(�,.Cj�. Signature of L gaily ut or zed person of Company li`st'ed in Section 1 Date Signed Steve Mills, eneral Manager—Power Generation,Colorado _ Phone: 303 628-2679 Type or Print Name and Official Title of Person Signing Above Fax: 303 628-2688 O1 8. Check appropriate box if you want: 01 x Copy of preliminary analysis conducted by Division ( ° x To review a draft of the permit prior to issuance '* $ �tcp. These sections are to be completed only if a company name change or transfer of ownership has occurred. 9. Permit previously issued to: N/A 10.Transfer of Ownership Information Effective Date of Permit Transfer: As responsible party for the emission source(s) listed above, I certify that the business associated with this source has been sold,and agree to transfer the permit to said party. Signature of Legally Authorized Person of Company listed in Section 9 Date Signed Phone: Type or Print Name and Official Title of Person Signing Above Fax: I • Mail completed application, APENs, and filing fee to: Colorado Department of Public Health and Environment http://www.cdphe.state.co.us/ap/stationary.html Air Pollution Control Division Phone: (303)692-3150 4300 Cherry Creek Drive South, APCD-SS-B I a lir Denver.Colorado 80246-1530 p I(6 00 0 Revised August 2004 *J C C LG � v � � V` N v- d � �=� 1 � w I o— O4 ill II s9 g [y.� a 0.4 `^c p z 1, µ N �qOp Q C` iG C a a ` G 4$p�P. .� ¢ 0 I11 V/iF v p 01) ¢ 4 u y a z._ o O c a c '� — F o0 0 °u d r r 4 a O, v W 8 0 0 2 'gg m ... $ A a a, T 'E La k p " o. 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U G v L` 4,, a. a a cS 0 O O i a d '��'° Fern F+ a_a DRAFT PERMIT • PERMIT NO: 07WE1100 INITIAL APPROVAL DATE ISSUED: ISSUED TO: Public Service Company of Colorado THE SOURCE TO WHICH THIS PERMIT APPLIES IS DESCRIBED AND LOCATED AS FOLLOWS: Utilities power plant known as the Fort Saint Vrain Station, located at 16805 County Road 19 'A, approximately 1.5 miles northwest of Platteville, Weld County, Colorado THE SPECIFIC EQUIPMENT OR ACTIVITY SUBJECT TO THIS PERMIT INCLUDES THE FOLLOWING: Two (2) General Electric Simple Cycle Combustion Turbines, Model 7FA, Rated at 1467 • mmBtu/hr and 174 MW(design)/146 MW(site). Natural Gas Fired. THIS PERMIT IS GRANTED SUBJECT TO ALL RULES AND REGULATIONS OF THE COLORADO AIR QUALITY CONTROL COMMISSION AND THE COLORADO AIR POLLUTION PREVENTION AND CONTROL ACT C.R.S.(25-7-101 et seq),TO THOSE GENERAL TERMS AND CONDITIONS INCLUDED IN THIS DOCUMENT AND THE FOLLOWING SPECIFIC TERMS AND CONDITIONS: 1. This permit shall expire if the owner or operator does not commence construction within 18 months after either the date of issuance of the permit or the date on which such construction or activity was scheduled to commence as set forth in the permit, whichever is later; discontinues construction for a period of eighteen months or more; or does not complete construction within a reasonable time of the estimated completion date. (Reference: Colorado Regulation No. 3,Part B, III.F.4.a) Upon showing of good cause by the permittee, the Division may grant extensions of the permit not to exceed eighteen months per extension. (Reference: Colorado Regulation No. 3, Part B, III.F.4.b) 2. The permittee shall notify the Division 30 days prior to startup. (Reference: Colorado Regulation No. 3, Part B, III.G.1). 3. The manufacturer, model number and serial number of the subject equipment s hall be provided to the Division prior to Final Approval. (Reference: Colorado Regulation No. 3, Part B, III.E.). 4. The permit number shall be marked on the subject equipment for ease of identification. (Reference: Regulation No. 3, Part B, III.E.) (State only enforceable) • 123/0023/010 & 011 ver. 2/00 Public Service Company of Colorado DRAFT Permit No. 07WE1100 DRAFT Initial Approval Colorado Department of Public He. • page 2 Air Poll PERMIT 5. Prevention of Significant Deterioration (PSD) requirements shall apply to this source at any such time that this source becomes a major modification for PSD solely by virtue of a relaxation in any permit condition. Any relaxation that increases the potential to emit above the PSD significance level will require a full PSD review of the source as though construction had not yet commenced on the source. The source shall not exceed the PSD significance level until a PSD permit is granted. (Reference: Regulation No. 3, Part D, Section VI.B.4.) 6. Major stationary source requirements for non-attainment areas shall apply to this source at any such time that this source becomes a major modification for NO x or VOC by virtue of a relaxation in any permit condition. Any relaxation that increases the potential to emit above the significance level for NOx or VOC will result in these sources being subject to the major stationary source requirements in Regulation No. 3, Part D, Section V. The source shall not exceed the significance level until compliance with Regulation No. 3, Part D, Section V is achieved. (Reference: Regulation No. 3, Part D, Section V.A.7.b.) 7. Except as provided for in Condition 8, below, no owner or operator of a source shall allow or cause the emission into the atmosphere of any air pollutant which is in excess of 20% opacity. EPA Method 9 shall be used to measure opacity. (Reference: Colorado Regulation No. 1, Section II.A.1). 8. No owner or operator of a source shall allow or cause to be emitted into the atmosphere any air pollutant resulting from the building of a new fire, cleaning of fire boxes, soot blowing, start-up, process modifications or adjustment or occasional cleaning of control equipment which is in • excess of 30% opacity for a period or periods aggregating more than six (6) minutes in any sixty (60) consecutive minutes (Reference: Colorado Regulation No. 1, Section II.A.4). 9. This source is subject to the requirements of Reasonably Available Control Technology (RACT). The following emission limitations shall be complied with (Reference: Regulation No. 3, Part B, Section III.D.2.a.(i)) Nitrogen Oxides (NOx) RACT for NOx has been determined to be Advanced Dry Low NOx(DLN) Combustion Systems with the following emission limits: Except as provided for below, emissions of NOx shall not exceed 9 ppmvd at 15 % O2, on a 1-hr average. During periods of combustion tuning and testing, emissions of NOx shall not exceed 100 ppmvd at 15% O2, on a 1-hr average. Use of this NOx emission limit for purposes of combustion tuning and testing shall not exceed 60 hours in any calendar yearfor both turbines combined. Records of the number of hours each turbine undergoes combustion tuning and testing shall be recorded and maintained and made available to the Division upon request. Compliance with the RACT limit shall be monitored using the continuous emission monitoring system required by Condition 16. Startup and Shutdown Exemption for NOx Emission Limitations Pollutant concentration limits are not applicable during startup and shutdown. However, the • emissions during startup and shutdown must be included for determination of compliance with quarterly/yearly limits specified in Condition 11. 123/0023/010 & 011 ver. 2/00 Public Service Company of Colorado DRAFT Permit No. 07WE 1100 • Initial Approval Colorado Department of Public He, DRAFT page 3 Air Poll PERMIT "Startup" means the setting in operation of any air pollution source for any purpose. Setting in operation for these turbines is defined as the time period between initial fuel firing to combustion configuration Mode 6. Mode 6 refers to the condition when all six burner nozzles are being fired. The station control system indicates which Mode the turbine is operating in. A record of when Mode 6 combustion configuration is achieved is stored in the station control system. "Shutdown" means the cessation of operation of any air pollution source for any purpose. The cessation of operation for these turbines begins when the command signal is initiated by the turbine operator to shutdown the unit and ends when fuel is no longer being fired in the turbine. "Combustion Tuning and Testing" means the operation of the unit for the purpose of performing combustion tuning and testing operations after a unit overhaul or as part of routine maintenance operations. Combustion tuning and testing can occur throughout the range of the operating conditions. 10. Both turbines together shall be limited to the fuel use rates as listed below and all other activities, operational rates and numbers of equipment as stated in the application. Monthly records of the actual consumption rate shall be maintained by the applicant and made available to the Division for inspection upon request. (Reference: Colorado Regulation No. 3, Part B, II.A.4) Natural Gas consumption, in mmscf, shall not exceed the following limitations: • Period 15t Month of 1st 2 Months of 1st 3 Months 1st 12 Months Annual Operation Operation of Operation of Operation (12-Month Rolling Total) 1089 1,633.5 2,178 2,178 2,178 During the first twelve (12) months of operation, compliance with both the periodic and annual consumption limitations shall be required. After the first twelve(12)months of operation,compliance with only the annual limitation shall be required. Compliance with the annual consumption limits shall be determined on a rolling twelve (12) month total. 11. Emissions of air pollutants from both turbines together shall not exceed the following limitations (as calculated in the Division's preliminary analysis). Compliance with the annual limits shall be determined on a rolling twelve (12) month total. By the end of each month a new twelve month total is calculated based on the previous twelve months' data. The permit holder shall calculate monthly emissions and keep a compliance record on site for Division review. (Reference: Colorado Regulation No. 3, Part B, II.A.4) Emissions of air pollutants, in tons, shall not exceed the following limitations: Period/ 1st Month of 1st 2 Months 1st 3 Months 1st 12 Months Annual Pollutant Operation of Operation of Operation of Operation (12-Month Rolling Total) PM 6.65 9.97 13.3 13.3 13.3 PMto 6.65 9.97 13.3 13.3 13.3 SO2 1.85 2.77 3.7 3.7 3.7 • NOx 19.95 29.93 39.9 39.9 39.9 CO 10.0 15.0 20.0 20.0 20.0 VOC 1.15 1.73 2.3 2.3 2.3 123/0023/010 & 011 ver. 2/00 Public Service Company of Colorado DRAFT Permit No. 07WE1100 • Initial Approval Colorado Department of Public He. DRAFT page 4 Air Poll PERMIT NOx and CO emission shall be determined using the CEMS required by Condition 16. SO2 emissions shall be determined using the continuous monitoring system required by 40 CFR Part 75, as adopted by reference in Colorado Regulation No. 18. PM, PM10, and VOC emissions shall be determined using the emission factors indicated in the permit notes. During the first twelve (12) months of operation, compliance with both the periodic and annual emission limitations shall be required. After the first twelve(12) months of operation, compliance with only the annual limitation shall be required. 12. NO,emissions from all insignificant activities associated with these turbines shall be included in monitoring compliance with the 39.9 tons/year emission limit in Condition 11 of this permit. The applicant shall track emissions from all NO,emitting insignificant activities associated with these turbines on a monthly basis and include those emissions in the daily (or periodic) and annual emission calculations specified in Condition 11. This information shall be kept on site and made available to the Division upon request. For the purposes of this condition, insignificant activities shall be defined as any activity or equipment, which emits any amount but does not require an Air Pollution Emission Notice (APEN). (Reference: Colorado Regulation No. 3, Part B Part B, II.A.4) 13. Particulate matter emissions from each turbine shall not exceed 0.1 lb/mmBtu (Reference: Colorado Regulation No. 1, Section III. A.1.c). 14. Each turbine is subject to Colorado Regulation No. 6 - Standards of Performance for New Stationary Sources, Part B-Specific Facilities and Sources, Non-Federal NSPS, II - Standards of • Performance for New Fuel-Burning Equipment, as follows (State-only enforceable): a. Opacity of emissions from this unit shall not exceed 20% b. Sulfur dioxide emissions not exceed 0.35 lbs/mmBtu 15. The turbines are subject to the provisions in 40 CFR Part 60 Subpart KKKK, "Standards of Performance for Stationary Gas Turbines for Which Construction is Commenced After February 18, 2005", as adopted by reference in Colorado Regulation No. 6, Part A, including, but not limited to, the following. a. Nitrogen Oxides Concentration of Nitrogen Oxides in the turbine exhaust shall not exceed 15 ppmvd at 15 % 02, on a 4-hr rolling average (40 CFR Part 60 Subpart KKKK§ 60.4325) Note that the NOx emission limits are not applicable during times of startup, shutdown and malfunction. However, those instances during startup, shutdown and malfunction when the NOx limitation is exceeded shall be identified in the excess emission reports required by Condition 15.1. Compliance with the NOx emission limits shall be monitored using the NOx continuous emission monitoring system required by 40 CFR Part 60 Subpart KKKK§ 60.4340(b)(1). b. Sulfur Dioxide The permittee must not burn in the subject stationary combustion turbine any fuel which contains total potential sulfur emissions in excess of 0.060 lb S02/MMBtu heat input. If • the turbine simultaneously fires multiple fuels, each fuel must meet this requirement(40 CFR Part 60 Subpart KKKK§60.4330(a)(2)). 123/0023/010& 011 ver. 2/00 Public Service Company of Colorado DRAFT Permit No. 07WE1100 • Initial Approval Colorado Department of Public He DRAFT page 5 Air Poll PERMIT Compliance with the fuel sulfur content limit shall be presumed when burning natural gas. The methods specified in 40 CFR Part 60 Subpart KKKK§ 60.4365 shall be used to demonstrate the natural gas meets the definition of natural gas. c. General Requirements The permittee must operate and maintain the stationary combustion turbine, air pollution control equipment, and monitoring equipment in a manner consistent with good air pollution control practices for minimizing emissions at all times including during startup, shutdown, and malfunction (40 CFR Part 60 Subpart KKKK § 60.4333(a)). d. Continuous Emission System Monitoring Requirements (i) The continuous emission monitoring system (GEMS) shall meet the requirements in § 60.4345. (ii) Data from the GEMS shall be used to identify excess emissions as specified in § 60.4350. e. Performance Testing Requirements (i) An initial performance test shall be conducted in accordance with the provisions in 40 CFR Part 60 Subpart KKKK§60.4400. (H) As an alternative to the initial performance test methodology specified in 40 CFR • Part 60 Subpart KKKK§ 60.4400, you may conduct the initial performance test as specified in § 60.4405. f. Reporting Requirements (i) For each affected unit required to continuously monitoring parameters or emissions, or to periodically determine the fuel sulfur content under this subpart, you must submit reports of excess emissions and monitor downtime in accordance with 40 CFR Part 60 Subpart A, § 60.7(c). Excess emissions must be reported for all periods of unit operation, including start-up, shutdown and malfunction (40 CFR Part 60 Subpart KKKK§60.4375(a)). Note that the source is exempted from monitoring the sulfur content of the fuel as provided for in 40 CFR Part 60 Subpart KKKK§60.4365. (H) Excess emissions and monitor downtime for NOx are defined in 40 CFR Part 60 Subpart KKKK§60.4380(b). In addition, the following requirements of Colorado Regulation No. 6, Part A, Subpart A, General Provisions, apply to this unit. g. At all times, including periods of start-up, shutdown, and malfunction, the facility and control equipment shall, to the extent practicable, be maintained and operated in a manner consistent with good air pollution control practices for minimizing emissions. Determination of whether or not acceptable operating and maintenance procedures are being used will be based on information available to the Division, which may include, but is not limited to, monitoring results, opacity observations, review of operating and maintenance procedures, and inspection of the source. (§ 60.11(d)) • h. No article, machine, equipment or process shall be used to conceal an emission which would otherwise constitute a violation of an applicable standard. Such concealment includes, but is not limited to, the use of gaseous diluents to achieve compliance with an 123/0023/010 &011 ver. 2/00 Public Service Company of Colorado DRAFT Permit No. 07WE1100 DRAFT • Initial Approval Colorado Department of Public He. page 6 Air Poll PERMIT opacity standard or with a standard which is based on the concentration of a pollutant in the gases discharged to the atmosphere. (§ 60.12) Written notification of construction and initial startup dates shall be submitted to the Division as required under§§ 60.7(a)(1) and (3). j. Records of startups, shutdowns, and malfunctions shall be maintained, as required under § 60.7(b). k. Written notification of continuous monitoring system demonstrations shall be submitted to the Division as required under§ 60.7(a)(5). I. Excess Emission and Monitoring System Performance Reports shall be submitted as required under§§ 60.7(c) and (d). Note that excess emission reports shall be submitted quarterly. m. Performance tests shall be conducted as required under§ 60.8. 16. For each turbine, continuous emission monitoring systems (CEMs) shall be installed, calibrated, and operated to determine and record: a. Concentration of Oxides of Nitrogen, ppmvd hourly average, corrected to 15% O2 b. Emissions of Oxides of Nitrogen, lbs/hr, tons/month. • c. Concentration of Carbon Monoxide, ppmvd hourly average, corrected to 15% O2. d. Emissions of Carbon Monoxide, tons/month. e. Operating mode -startup, shutdown and/or standard operation f. Load, in MW, at which turbine is operating Monthly emissions from the CEMS shall be used in twelve month rolling totals, as specified in Condition 11, to monitor compliance with the annual emission limitations in Condition 11. Except where noted below, the NOR and diluent(either O2 or CO2) CEMS shall meet the applicable requirements in 40 CFR Part 75, the performance specification requirements in 40 CFR Part 75 Appendix A and the quality assurance quality control requirements in 40 CFR Part 75 Appendix B. Except where noted blow, the CO CEMS shall meet the applicable requirements in 40 CFR Part 60 Subpart A§60.13, the performance specification requirements in 40 CFR Part 60 Appendix A and the quality assurance/quality control requirements in 40 CFR Part 60 Appendix F. NOR and CO CEMS data shall meet the applicable "primary equipment hourly operating requirements"for hourly average calculation methodology specified in 40 CFR Part 75 Subpart B §75.10(d). For periods when quality assured data is not available from the continuous emission monitoring systems the data replacement procedures in 40 CFR Pad 75 Subpart D shall be used for determining the total (annual) emissions. Although CO emissions are not specifically referenced • in the Subpart D procedures, the CEMS data acquisition system is programmed to substitute CO emissions using the same procedures specified for NOR. 123/0023/010 & 011 ver. 2/00 Public Service Company of Colorado DRAFT Permit No. 07WE 1100 • Initial Approval Colorado Department of Public He DRAFT page 7 Air Poll PERMIT Note that the replaced data shall be used to monitor compliance with the NOx and CO annual emission limitations. 17. In addition to the performance test required by Condition 15, performance tests shall be conducted to measure the emission rate(s) for the pollutants listed below in order to demonstrate compliance with the emission and pollutant concentration limits in the turbine exhaust. (Reference: Regulation 3, Part B.III.G.3) Particulate Matter (filterable and condensable) using EPA approved Methods Oxides of Nitrogen using EPA approved methods. Carbon Monoxide using EPA approved methods Volatile Organic Compounds using EPA approved methods A stack testing protocol shall be submitted for Division approval at least thirty (30) calendar days prior to any performance of the test required under this condition. No stack test required herein shall be performed without prior written approval of the protocol by the Division. The Division reserves the right to witness the test. In order to facilitate the Division's ability to make plans to witness the test, notice of the date (s) for the stack test shall be submitted to the Division at least thirty (30) calendar days prior to the test. The Division may for good cause shown, waive this thirty (30) day notice requirement. In instances when a scheduling conflict is presented, the Division shall immediately contact the permittee in order to explore the possibility of making modifications to the stack test schedule. The required number of copies of the compliance test results shall be submitted to the Division within forty-five (45) calendar days of the completion of • the test unless a longer period is approved by the Division. Any stack test conducted to show compliance with a quarterly or annual emission limitation shall have the results projected up to the quarterly or annual averaging time by multiplying the test results by the allowable number of operating hours for that averaging time. NOTE: The emission limitations in this permit are based on each turbine operating for 738.5 hours per year at 100% load. 18. This source is subject to the provisions of Regulation No. 3. Part C, Operating Permits (Title V of the 1990 Federal Clean Air Act Amendments). The provisions of this construction permit must be incorporated into the operating permit. The application for the modification to the Operating Permit is due within one year of commencing operation of the equipment covered by this permit. (Reference: Colorado Regulation No. 3, Part C, 111.6.2). 19. Prior to issuance of final approval, the applicant shall submit to the Division for approval an operating and maintenance plan for all control equipment and control practices and a proposed recordkeeping format for demonstrating compliance on an ongoing basis. The applicant shall then follow the current Division—approved Operating and Maintenance Plan. (Reference: Colorado Regulation No. 3, Part B, III.G.7) 20. Within one hundred and eighty days (180) after commencement of operation, compliance with the conditions contained on this permit shall be demonstrated to the Division. It is the permittee's responsibility to self certify compliance with the conditions. Failure to demonstrate compliance within 180 days may result in revocation of the permit(Reference: Colorado Regulation No. 3, Part B, III.G.2). Information on how to certify compliance was mailed with the permit or can be obtained from the Division at 303-692-3209. • 123/0023/010 & 011 ver. 2/00 Public Service Company of Colorado DRAFT Permit No. 07WE1100• DRAFT Initial Approval Colorado Department of Public He. page 8 Air Poll PERMIT 21. A revised Air Pollutant Emission Notice (APEN) shall be filed: (Reference: Reg.3, Part A,II.C) a. Annually whenever a significant increase in emissions occurs as follows: For any criteria pollutant: For sources emitting less than 100 tons per year, a change in actual emissions of five tons per year or more, above the level reported on the last APEN; or For volatile organic compound and nitrogen oxides sources in ozone non-attainment areas emitting less than 100 tons of VOC per year, a change in actual emissions of one ton per year or more or five percent, whichever is greater, above the level reported on the last APEN submitted; or For sources emitting 100 tons per year or more, a change in actual emissions of five percent or 50 tons per year or more, whichever is less, above the level reported on the last APEN submitted; or A change in actual emissions, above the level reported on the last APEN submitted, of 50 pounds of lead. For any non-criteria reportable pollutant: If the emissions increase by 50%or five(5)tons per year,whichever is less, above the level reported on the last APEN submitted to the Division. • b. Whenever there is a change in the owner or operator of any facility, process, or activity; or c. Whenever new control equipment is installed, or whenever a different type of control equipment replaces an existing type of control equipment; or d. Whenever a permit limitation must be modified; or e. No later than 30 days before the existing APEN expires. Jacqueline Joyce R K Hancock, III, P.E. Permit Reviewer Construction Permit Unit Supervisor Stationary Sources Program Air Pollution Control Division • 123/0023/010 & 011 ver. 2/00 Public Service Company of Colorado DRAFT Permit No. 07WE1100 DRAFT • Initial Approval Colorado Department of Public He pages Air Poll PERMIT Notes to Permit Holder: 1) The production or raw material processing limits and emission limits contained in this permit are based on the production/processing rates requested in the permit application. These limits may be revised upon request of the permittee providing there is no exceedance of any specific emission control regulation or any ambient air quality standard. A revised air pollution emission notice(APEN) and application form must be submitted with a request for a permit revision. 2) These emission units are classified as a: Synthetic minor source for Title V applicability True minor source for HAPs Synthetic minor for a major modification with respect to PSD and NANSR The facility is classified as: Major source for Title V applicability Synthetic minor source for HAPS Major stationary source for PSD applicability 3) This source is subject to the Common Provisions Regulation Part II, Subpart E, Affirmative Defense Provision for Excess Emissions During Malfunctions. The permittee shall notify the Division of any malfunction condition which causes a violation of any emission limit or limits stated in this permit as soon as possible, but no later than two (2) hours after the start of the next working day, followed by written notice to the Division explaining the cause of the occurrence and . that proper action has been or is being taken to correct the conditions causing said violation and to prevent such excess emission in the future. 4) The emission levels contained in this permit are based on the following emission factors: Pollutant Emission Factor Emission Factor Source NOx 54 lbs/hr Manufacturer's data, at 5°F, 100% load (9 ppmvd @ 15% O2 converted to lbs/hr) CO 27 lbs/hr Manufacturer's data at 5°F, 100% load (9 ppmvd @ 15% O2 converted to lbs/hr). VOC 2.1 x 10-3 lb/mmBtu AP-42, Section 3.1 (dated 4/00), Table 3.1-2a(for SO2 3.4 x 10"alb/mmBtu SO2 per footnote h) PM/PM10 (includes 18 lbs/hr Manufacturer's data sheet(filterable), at all loads condensables) and temperatures condensables presumed to be 50% of filterable per manufacturer. 5) The following emissions of non-criteria reportable air pollutants are established based upon the activities as indicated in this permit and exceed the threshold for APEN reporting. This information is listed to inform the operator of the Division's analysis of the specific compounds. This information is listed on the Division's emission inventory system. Pollutant CAS No. Emission Factor' (lb/mmBtu) Emissions2 (Ibs/yr) Formaldehyde 50-00-0 1.30 x 10-3 1538.6 'Emission factors are from AP-42 (Section 3,10, dated April 2000, Table 3.1-3. • 2Emissions are based on the above emission factors, the permitted fuel consumption limit of 1 089 mmscf/yr and a natural gas heat content of 995 Btu/scf. 123/0023/010 & 011 ver. 2/00 Public Service Company of Colorado DRAFT Permit No. 07WE1100• DRAFT Initial Approval Colorado Department of Public He. page 10 Air Poll PERMIT 6) In accordance with C.R.S. 25-7-115.1, the Air Pollutant Emission Notice (APEN) associated with this permit is valid for a term of five years. The five-year term for this APEN expires on November 7, 2012. A revised APEN shall be submitted no later than 30 days before the five-year term expires. • • 123/0023/010 & 011 ver. 2/00 Public Service Company of Colorado DRAFT Permit No. 07WE1100• DRAFT Initial Approval Colorado Department of Public He. page 11 Air Poll PERMIT GENERAL TERMS AND CONDITIONS: (IMPORTANT! READ ITEMS 5,6,7 AND 8) 1. This permit is issued in reliance upon the accuracy and completeness of information supplied by the applicant and is conditioned upon conduct of the activity,or construction,installation and operation of the source, in accordance with this information and with representations made by the applicant or applicant's agents. It is valid only for the equipment and operations or activity specifically identified on the permit. 2. Unless specifically stated otherwise,the general and specific conditions contained in this permit have been determined by the APCD to be necessary to assure compliance with the provisions of Section 25-7- 114.5(7)(a), C.R.S. 3. Each and every condition of this permit is a material part hereof and is not severable. Any challenge to or appeal of,a condition hereof shall constitute a rejection of the entire permit and upon such occurrence,this permit shall be deemed denied ab initio. This permit may be revoked at any time prior to final approval by the Air Pollution Control Division(APCD)on grounds set forth in the Colorado Air Quality Control Act and regulations of the Air Quality Control Commission (AQCC), including failure to meet any express term or condition of the permit. If the Division denies a permit,conditions imposed upon a permit are contested by the applicant,or the Division revokes a permit,the applicant or owner or operator of a source may request a hearing before the AQCC for review of the Division's action. 4. This permit and any required attachments must be retained and made available for inspection upon request at the location set forth herein. With respect to a portable source that is moved to a new location, a copy of the Relocation Notice(required by law to be submitted to the APCD whenever a portable source is relocated)should be attached to this permit. The permit may be reissued to a new owner by the APCD as provided in AQCC Regulation No.3, Part B, Section II.B.upon a request for transfer of ownership and the submittal of a revised APEN and the required fee. • 5. Issuance (initial approval) of an emission permit does not provide "final" authority for this activity or operation of this source. Final approval of the permit must be secured from the APCD in writing in accordance with the provisions of 25-7-114.5(12)(a)C.R.S.and AQCC Regulation No.3, Part B,Section III.G. Final approval cannot be granted until the operation or activity commences and has been verified by the APCD as conforming in all respects with the conditions of the permit. If the APCD so determines,it will provide written documentation of such final approval, which does constitute "final" authority to operate. Compliance with the permit conditions must be demonstrated within 180 days after commencement of operation. 6. THIS PERMIT AUTOMATICALLY EXPIRES IF you(1)do not commence construction or operation within 18 months after either the date of issuance of this permit or the date on which such construction or activity was scheduled to commence as set forth in the permit,whichever is later;(2)discontinue construction for a period of 18 months or more;or(3)do not complete construction within a reasonable time of the estimated completion date. Extensions of the expiration date may be granted by the APCD upon a showing of good cause by the permittee prior to the expiration date. 7. YOU MUST notify the APCD at least thirty days (fifteen days for portable sources) prior to commencement of the permitted operation or activity. Failure to do so is a violation of Section 25-7- 114.5(12)(a),C.R.S.and AQCC Regulation No.3,Part B,Section III.G.1.,and can result in the revocation of the permit. You must demonstrate compliance with the permit conditions within 180 days after commencement of operation as stated in condition 5. 8. Section 25-7-114.7(2)(a),C.R.S.requires that all sources required to file an Air Pollution Emission Notice (APEN)must pay an annual fee to cover the costs of inspections and administration. If a source or activity is to be discontinued,the owner must notify the Division in writing requesting a cancellation of the permit. Upon notification, annual fee billing will terminate. 9. Violation of the terms of a permit or of the provisions of the Colorado Air Pollution Prevention and control Act or the regulations of the AQCC may result in administrative,civil or criminal enforcement actions under Sections 25-7-115 (enforcement), -121 (injunctions), -122 (civil penalties), -122.1 (criminal penalties), C.R.S. • 123/0023/010 & 011 ver. 2/00 Hello