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Home My WebLink About20013412.tiff _ Lty/ea j 112 /10 �� 19 , 20 1 I \ 1 ,: I 7. •. 25 _ �0 \ 29 31 32 %. I I r r / I er „Th: WELD COUNTY TRI-AREA S.D. ---I Weld County l.._. Tri-Area 5.b. — Dacono 5. D. L_ _I St Vrain 5. D. 0 0.375 0.75 y c ' amiles 12-3-01 f-3'f1ci NFRWQPA 2001 WATER QUALITY PLAN UPDATE Maior Point Source Inventory Data Operating Agency: NPDES Permit#: CO-0021032 Town of Wellington Permit Expires: 10/31103 Description of Treatment Facilities: 2 aerated lagoons, settling chamber, chlorination. Discharge Location: Boxelder Creek in the SW 34 of NE Y. of Section 4, T9N, R68W. — Stream Segment Classification: Class 2 Warm Water Aquatic Life, Class 2 Recreation, and Agriculture. Service Area Population: Existing 2005 2010 2015 2,400 4,000 9,000 14,000 Capacities: Design Existing Year at 80% Year at 95% Capacity Load Design Design Flow(MGD) 0.29 0.24 2001 2002 Organic (lbs./day BOD5) 590 456 Effluent limits required beyond secondary to meet stream standards: Ammonia standards will be — required with the next permit and/or with any capacity expansion. Preliminary limits have not been definitely issued as of this date; however, the Town is planning on 1-2 mg/effluent NH3 and less than 30-30 mgi BOD & TSS. Estimated 5-year construction needs: Construct new mechanical WWfP to satisfy new growth demand and comply with anticipated effluent requirements which will include Nitrification. 1/1 correction is needed and is ongoing. I -126 4 K t U 112( 7 1 8 9 1 2 4t 14 1"J� 8 17 ? 16 5 4 la 1 • il23 . 2 19 20 21 22 1 23 24 Irat • \• ♦ \ 25 27 25 25 ` r-r---) ._ ♦ 36 . -1 32 -33 34 3- 36 • 3 3 m m a III' 6 53 2 ti ♦ 9 1 11 )12 \ \ cd -iAA, ,// ! ` µ/ / , ', 1 /2: r //, /7,,: , ,, 7„,,../. //,,,/, / / . . / / //, ,„/,,,,,x,„ 2///,„/ /, *,. WELLINGTON '/ _„I ��' i�l' - Wellington' , 11 / I Boxelder 5. D. =©_ gal llIILILI Fort Co I I i ns II Lj � . 0 1O 2.0 • miles 11 • 12-3-01 NFRWQPA 2001 WATER QUALITY PLAN UPDATE Maior Point Source Inventory Data Operating Mencv: NPDES Permit#: CO-0020320 Town of Windsor Permit Expired: 01ltU06 Description of Treatment Facilities: Activated sludge, nitrification, U.V. disinfection. Discharge Location: Cache/a Poudre River, Segment#12 in the SE 3, Section 34, T6N, R67W. Stream Segment Classification: Class 2 Warm Water Aquatic Life, Class 1 Recreation, and Agriculture. Service Area Population: Existing 2005 2010 2015 9,270 12,000 14,790 18,230 Capacities: Design Existing Year at 80% Year at 95% Capacity Load Design Daign Flow(MGDI 2.8 1.04 >2010 Organic(lbs./day BOD5 7,006 1,928 >2010 Effluent limits required beyond secondary to meet stream standards: Ammonia and metals limits. 1 -128 �� s 29 27 2. 25 2 35 36 31 32 33 t4 •• N. T7NAll tv 3 OD 1/40 2 1 CYCC •• � 5 4 3 -ft si �, 12 7 8 10 rat � s r 1. �i 's i � n ..r m 13 .... _ ]&____- 1 6 15 v 14 13 I_ } 11- J-- ii j r J, • f • I ( r i 19 jl i4-3 f L. - 20 21. 22 "".«, 23 24 ' J I C 43/4 a ' �. i ?I�r c.) .If J 25 l- U 30 9 28 L- 25 1 E 11 iliri jrr r l rr 1 s, 1- ..._d 35 ` i 36 31 2 33 II 34 0� •35 36 �f �ri IJ r .. r T6N . P V 1- J _I - F �J CE N 5 WINDSOR I, I.._.J Windsor , ;' '} Loveland II 11 / Boxelder S. b. I Severance H Greeley ii S. Fort Collins o i.o• 2.0 5. b. miles 12-3-01 NFRWQPA 2001 WATER QUALITY PLAN UPDATE Major Point Source Inventory Data Operating Agency: NPDES Permit#: CO-0041882 B & B Mobile & R.V. Park Permit Expires: 10/32000 Description of Treatment Facilities: 15,000 GPD air-o-gest extended aeration plant. Discharge Location: Retention and evaporation pond, discharge to Segment 10 Boulder Creek. Stream Segment Classification: Aquatic Life Class 1, Recreation Class 2, Water Supply, Agriculture Service Area Population: Existing 2005 2010 2010 110 150 150 Capacities: Design Existing Year at 80% Year at 95% Capacity Load MS!! Design Flow(MGD) .015 .004 2005 2005 Organic (Ibs./day BOD5) 31.5 12 Effluent limits required beyond secondary to meet stream standards: None. Estimated 5-year construction needs: In order to meet more stringent ammonia limits for discharge to Boulder Creek, the discharger installed a sludge holding tank which will allow for better control of solids in the system. No other needs are anticipated. Sludge will be disposed of by a liquid waste disposal company. 1 130 NFRWQPA 2001 WATER QUALITY PLAN UPDATE Major Point Source Inventory Data Operating Agency: NPDES Permit#: COG-582009 Berthoud Estates Permit Expires: 07131,4)4 Description of Treatment Facilities: One aerated lagoon, one polishing pond, one intermittent sand filter pond, and a chlorination chamber. Discharge Location: Tributary to Dry Creek and Little Thompson River, Segment 10, in the NW %, of Section 30, T4N, R69W. Stream Segment Classification: Class 2 Warm Water Aquatic Life, Class 1 Recreation, Agriculture. Service Area Population: Existing 2005 2010 476 476 476 Capacities: Design Existing Year at 80% Year at 95% Capacity Load Design Design Flow(MGDI 0.052 0.042 2001 N/A Organic (lbs./day BODE) 193 71 Effluent limits required beyond secondary to meet stream standards: None. Estimated 5-year construction needs: Replacement of effluent structure and chlorination tanks. 1 131 ^ ^ NFRWQPA 2001 WATER QUALITY PLAN UPDATE Major Point Source Inventory Data — Operating Agency: NPDES Permit#: COG-581006 Johnson's Corner, Inc. Permit Expires: 10/31/99-extended Description of Treatment Facilities: Two aeration ponds, chlorinator, continuous discharge flow meter. Discharge Location: Retention and evaporation pond, eventually to unnamed gully, tributary to Hillsboro Ditch. Stream Segment Classification: ^ Service Area Population: N/A Capacities: Design Existing Year at 80% Year at 95% Capacity Load Design Design Flow(MGD) 0.04 0.022 Organic (lbs./day BODE) 99 56 Effluent limits required beyond secondary to meet stream standards: Estimated 5-year construction needs: None. Plan to expand the truck-stop facility which may increase usage. The Town of Johnstown may annex this area and provide wastewater treatment through their proposal Low Point plant, eliminating the need for this plant. 1132 NFRWQPA 2001 WATER QUALITY PLAN UPDATE Major Point Source Inventory Data Operating Agency: NPDES Permit#: CO-0029742 Riverglenn Homeowners Association Permit Expires: 01/31/33 Description of Treatment Facilities: 2 aerated lagoons, polishing pond, chlorination. Discharge Location: Segment 9 Little Thompson River in the SE% of Section 27, T4N, R69W Stream Segment Classification: Class 2 Warm Water Aquatic Life, Class 1 Recreation, Agriculture. Service Area Population: Existing 2005 2010 2015 169 230 290 290 Capacities: Design Existing Year at 80% Year at 95% Capacity Load Design Design Flow(MGD) 0.029 .012 >2010 Organic (lbs./day BODS) 52 17 >2010 Effluent limits required beyond secondary to meet stream standards: None. Estimated 5-year construction needs: A new chlorine contact basin and miscellaneous maintenance and update items. 1133 NFRWQPA ^ 2001 WATER QUALITY PLAN UPDATE - Major Point Source Inventory Data Operating Agency: NPDES Permit#: CO-581000-5 Weld County School District RE-3J Permit Expires: 04/30/99-extended Description of Treatment Facilities: A package plant consisting of 2 aeration basins, 2 clarifiers, and chlorine contact. Sludge removed hauled to Denver Metro. Discharge Location: Lowline Canal Ditch. Stream Segment Classification: Unclassified. Service Area Population: Existing 2005 20010 1,250 1,500 1,500 Capacities: Design Existing Year at 80% Year at 95% Capacity Load Design Design Flow(MGD) 0.015 0.005 Organic(lbs./day BODO 77 35 Effluent limits required beyond secondary to meet stream standards: None. Estimated 5-year construction needs: None. 1 134 NFRWQPA 2001 WATER QUALITY PLAN UPDATE Major Point Source Inventory Data Operating Agency: NPDES Permit#: COG-582032 Western Mini RanchesNaquero Estates Permit Expires: 07/31074 Description of Treatment Facilities: Two aerated lagoons, one polishing pond, and a chlorination chamber. Discharge Location: Tributary to Dry Creek and Little Thompson River, Segment 10, in the NW% Section 30, T4N R69W. Stream Segment Classification: Class 2 Warm Water Aquatic Life, Class 2 Recreation, Agriculture. Service Area Population: Existing 2005 2010 235 235 235 Capacities: Design Existing Year at 80% Year at 95% Capacity Load Design Design Flow(MGD) 0.025 0.018 Organic(lbs day BOD& 50 37 Effluent limits required beyond secondary to meet stream standards: None. Estimated 5-year construction needs: None 1135 II. INDUSTRIAL PERMITTED POINT SOURCE DISCHARGES I, .. II-1 A. PERMITTED POINT SOURCE DISCHARGES ANHEUSER-BUSCH The Anheuser-Busch Incorporated (ABI) brewery in Fort Collins produces wastewater which is disposed of in one of two ways. It is either pumped to Nutri-Turf, a subsidiary of Anheuser-Busch Companies (ABC), for irrigation or pumped to the City of Fort Collins Drake Water Reclamation Facility for treatment under a pretreatment contract. All of the effluent goes to Nutri-Turf during the summer, while in the winter about one- , half of the effluent is treated by the City and the remainder goes to Nutri-Turf. The Nutri-Turf land application site is Sec. 19, SE Y4 Sec. 20, Sections 21, 22, and 29, and the NW, NE, and SE 'A of Sec. 30 and NW, NE, and SW 'A of Sec. 32, T8N, R67W. It has a design application capacity of 3.51 mgd and uses 35 center pivot irrigation systems to grow an alfalfa-bromegrass mixture. Before application, wastewater is stored in agitated storage tanks. Stormwater runoff collection ponds with pumpback capability collect irrigation runoff and prevent discharge from the property under normal conditions. Each basin also has an emergency spillway for discharge under severe storm conditions. The facility permit, number is CO-0039977 originally expired June 30, 1994; but it has been extended pending the issuance of a new permit. The receiving water is Black Hollow Creek. To date there has been no discharge since operations began. COLORADO DIVISION OF WILDLIFE The Division of Wildlife operates 3 fish hatcheries under permit in the region. They are the Bellevue, Watson, and Poudre Hatcheries. 11-2 ^ The Bellevue Hatchery operates under permit no. COG-130010, which expires on December 31, 2003. The hatchery has two 300,000 gallon sediment ponds which remove sediment before discharge of flow-through water to Panther Creek, a tributary of the Cache la Poudre River. In June of 1998 these ponds were lined with a poly liner and will only have clean surface overflows going through them. They will be alternated every two months, with the full pond being drained and flushed out of all sediments while the other pond begins collecting clean flows for two months. All raceway and trough cleaning sediments will bypass these two ponds and be sent directly to the two acre-foot ponds at the Watson unit. All Bellvue pond flushing sediments will also go to the Watson ponds every two months. This project cost about $300,000 and was done to control whirling disease parasites, not to upgrade discharge requirements. The hatchery is located in Section 36, T8N, R70W, and dis- ^ charges about an average of 1.44 mgd from May to October and 0.864 from November to April. The Watson Hatchery is located in Section 30, T8N, R69W, and discharges an average of about a 19.0 mgd to the Poudre River. Treatment is through two settling ponds of about 2 acre-foot capacity each. The operation is regulated by permit number COG-130009, which expires on December 31, 2003. Permit number COG-130008 regulates the Poudre Hatchery, which is located in Section 32, T9N, R74W. The permit expires on December 31, 2003. Treatment is through two 2 acre-foot settling ponds, and the discharge averages about 14.0 mgd. EASTMAN KODAK - COLORADO DIVISION The Kodak Colorado Division is an industrial complex that manufactures photographic products. Kodak operations that generate industrial wastewater include film support production, support facilities, film and paper sensitizing, silver recoery from sensitizing, utilities, and demineralization of intake waater. Kodak Colorado has several individual pretreatment units that are used on processes prior to the main treatment plant. Those include acid regeneration, silver recovery, and air stripping. In addition to the Kodak operations, Kodak Polychrome Graphics manufactures lithoplates and generates wastewater that is discharged to the kodak Colorado division's wastewater treatment facility. The main treatment plant consists of two parallel aerated lagoons, two polishing lagoons, and three multi-media rapid sand filters. The first two lagoons add oxygen and provide mixing to ensure adequate BOD removal; and the second lagoons are used primarily for solids settling. When necessary, aerators are used to maintain minimum dissolved oxygen levels for odor control. The filters, with polymer added to improve efficiency, are used to remove particulates. The discharge of effluent from the sand filters is to Segment 12 of the Cache la Poudre River in the SW 34 of Section 35, T6N, R67. The discharge is regulated by CDPS permit No. CO-0032158, which was scheduled to expire on July 31, 2005. Permit limits are included far ammonia, metals, flow, 1,2-Dichloroethane, and oil and grease, BOD5, TSS, and pH. The maximum flow limitation of 1.8 mgd for a 30-day average. Kodak also is required to perform whole effluent toxicity testing on their effluent. r II-4 MONFORT-LONE TREE The Monfort Company operates a wastewater treatment plant located in the SE 'A of Sec. 31, T6N, R64W. This plant treats wastes from Monfort's beef and lamb packing plants in Greeley. It consists of four anaerobic lagoons followed by an activated sludge treatment system, polishing ponds, and chlorine disinfection before discharge to Lone Tree Creek just upstream from its confluence with the South Platte River. The permit number for this discharge is CO-0027707, and it expires on March 31, 2005. The capacity of the plant is 3.2 mgd, and its flows are currently at 2.8 mgd. This permit has more stringent ammonia and nitrate limitations; it has resulted in large capital and operating costs expenditures by the company. Residual chlorine limits have been lowered significantly, and biomonitoring is required. Over $4 million in capital costs have been spent for improvements. These improvements include a pretreatment plant that pretreats wastewater at the packing plant to remove BOD5, suspended solids, and fats, oil, and grease to produce a saleable byproduct and reduce the load on the treatment plant dramatically. Waste activated sludge and primary sludge are currently being hauled from the plant by Liquid Waste Management Company at the rate of about 5 mgd. Additional improvements possibly anticipated include increased capacity in primary and secondary units, nitrification and denitrification, and more sludge dewatering and storage capacity. WESTERN SUGAR COMPANY The Western Sugar Company processes sugar beets in Greeley. The factory operates on a continuous basis for about five months after harvest, or until all beets are processed. The operating period is usually October through February. The factory discharges non-contact barometric cooling water during this operating period only. II-5 The current permit for Western Sugar is No. CO-0041360, became effective August 1, 2000 and expires July 1, 2005. The permit has ammonia and fecal coliform limits -- that take effect on 9/1/04. The permit regulates the discharge of the cooling water through two connected condenser water holding ponds, the second of which discharges to Segment 12 of the Cache la Poudre River. Treatment provided is aeration in the first pond and the periodic addition of chlorox and bromine to the pan condensers to control bacteria. The point of discharge is in the NE 1/4 of the NW '/a of Section 9, T5N, R65W. The average volume of discharge is 1.5 mgd with a maximum capacity of 6.0 mgd., but is limited by discharge permit to 3.0 mgd. Limits in the permit are included for flow, TSS, BOD5, TRC, fecal coliform, temperature, acute whole effluent toxicity and monthly limits for total ammonia from September to March. No discharge is allowed April through August. COLORADO SWEET GOLD (formerly GTC Nutrition, Coors BioTech, Zeagen, and Golden Technologies Company] Colorado Sweet Gold, operates a manufacturing plant in Johnstown in which they use a wet corn milling process to produce corn starch and animal nutrients. Wastewater is treated and discharged to the Little Thompson River in Section 9, T4N, R67VV. The CDPS permit number for this discharge is CO 0001058, which expires on October 31, 2005. Treatment facilities include a surge or mixing basin, an aerated basin using submerged turbine aerators, an aerated lagoon with static aerators, a settling pond, and a polishing pond. Sludge from these facilities is hauled by commercial contract II-6 • and discharged to farm land. GTC Nutrition Company has a State of Colorado permit for the sludge disposal. The capacity of the wastewater treatment facilities is 0.430 mgd and 1,750 pounds of BODS/day. Average effluent flows are 0.2 mgd. Major wastewater constituents removed are complex carbohydrates and ammonia. Current permit limits are 1,750#/day GODS on a 30-day average, TSS limits are 2,100 lbs. on a 30-day average basis. The only discharge from the facility is to the Lithe Thompson River via discharge point 003. - r- I1-7 NFRWQPA 2001 WATER QUALITY PLAN UPDATE Major Point Source Inventory Data r-. Operating Agency: NPDES Permit#: CO-0039977 Anheuser-Busch Permit Expired: 06/30/94-extended Description of Treatment Facilities: Wastewater is land applied by.35 center pivot systems and used as irrigation water. Before application, wastewater is stored in agitated storate tanks. Stormwater runoff collection ponds with pumpback capability collect irrigation runoff and prevent its discharge from the property. Each pond also has an emergency spillway where runoff could be discharged. ea- Discharge Location: The location of the irrigated land is T8N, R67W, Section 19, SE 3 of Section 20, Section 21, Section 22, Section 29, NW, NE, and SE 3 of Section 30 and NW, NE and SW 3 of Section 32, tributary to Black Hollow Creek. Stream Segment Classification: Class 2 Warm Water Aquatic Life, Class 2 Recreation, and Agriculture. Capacities: Design Existing Capacity Load Flow(MGDZ 3.51 2.4 -- Effluent limits required beyond secondary to meet stream standards: None. -- Estimated 5-year construction needs: Potential addition of 250 acres of pivots in Section 27 and/or addition of 20 to 30 rapid infiltration basins. 11-8 ^ NFRWQPA 2001 WATER QUALITY PLAN UPDATE Major Point Source Inventory Data Operating Agency: NPDES Permit#: COG-130010 BELLVUE Colorado Division of Wildlife Permit Expires: 12/31/03 Description of Treatment Facilities: The facility is a state trout hatchery and rearing unit, with two sediment ponds at 300,000 gallons each. * -, Discharge Location: Township 8N, Range 70W, Section 36. Panther Creek, which flows into segment 10 of the Poudre River. Stream Segment Classification: Class 2 Cold Water Aquatic Life, Class 2 Recreation, Water Supply, and Agriculture. Capacities: Design Existing Capacity Load Flow(MGD) 3.0 1.44 av(May-oct) -864 av(Nov-Apr) Effluent limits required beyond secondary to meet stream standards: None. • Estimated 5-year construction needs: *In June of 1998 these ponds were lined with a polyliner and will only have clean surface overflows going through them. They will be alternated every two months, with the full pond being drained and flushed out of all sediments while the other pond begins collecting clean flows for two months. All raceway and trough cleaning sediments will bypass these two ponds and be sent directly to the two acre-foot ponds at the Watson Unit. All Bellvue pond flushing sediments will also go to the Watson ponds every two months. This project cost about$300,000 and was done to control whirling disease parasites, not to upgrade discharge requirements. No new construction planned. No operational changes planned. p 11=9 NFRWQPA 2001 WATER QUALITY PLAN UPDATE Major Point Source Inventory Data Operating Agency: NPDES Permit#: COG-130009 WATSON Colorado Division of Wildlife Permit Expires: 12/31/03 Description of Treatment Facilities: The facility is a state fish hatchery and rearing unit. Effluent Water is "treated"with two sediment ponds. Each settling pond is approximately 2 acre feet. Biosolids are removed every 8-10 years and stored onsite. Discharge Location: Township 8N, Range 69W, Section 30. Poudre River, Segment 10. Stream Segment Classification: Class 2 Cold Water Aquatic Life, Class 2 Recreation, Water Supply, Agriculture. Capacities: Design Existing Capacity Load Flow(MGD) 23.0 19.0 max Effluent limits required beyond secondary to meet stream standards: None. r— Estimated 5-year construction needs: No changes except Bellvue Hatchery cleaning effluent has been delivered to Watson's settling ponds for treatment since August 1, 1998. Flows are intermittent each week with estimated total additional flow increases intermittently of 200-500 gpm for 15-30 minute periods 3-6-per day Monday-Friday each week. ^ Watson is now back into production as of June 2000 at the 150,000 fish (60,000 ib) annual level. No new operational changes or new construction are planned at this time. r r- a a 11-10 NFRWQPA 2001 WATER QUALITY PLAN UPDATE Major Point Source Inventory Data Operating Agency: NPDES Permit#: COG-130008 POUDRE Colorado Division of Wrldlife Permit Expires: 12/31/98 Description of Treatment Facilities: The facility is a state fish rearing unit. Treatment consists of -- nine sediment ponds with a total volume of approximately 26 acre-feet. Biosolids are removed every year and stored onsite. Discharge Location: Township 9N, Range 74W, Section 32. The Cache La Poudre River, Segment 3. Stream Segment Classification: Class 1 Cold Water Aquatic Life, Class 1 Recreation, Water Supply, Agriculture. Capacities: Design Existing Capacity Load ^ Flow(MOD) 14.0 12.5 ^ Effluent limits required beyond secondary to meet stream standards: None. Estimated 5-year construction needs: None. es— II-11 NFRWQPA 2001 WATER QUALITY PLAN UPDATE Major Point Source Inventory Data Operating Agency: NPDES Permit#: CO-0032158 Eastman Kodak Company Permit Expired: 12/31/92-extended Description of Treatment Facilities: Two parallel aerated lagoons, two polishing lagoons, and three multi-media rapid sand filters. r Discharge Location: Segment 12 of the Cache la Poudre River in the SW3 of Section 35, T6N, R67 Stream Segment Classification: Class 2 Warm Water Aquatic Life, Class 2 Recreation, and Agriculture. Capacities: Design Existing Capacity Load Flow(MGD) 1.8 1.1 Organic (lbs./day BOD5) 200 Effluent limits required beyond secondary to meet stream standards: Ammonia removal, metals limits, biomonitoring, and 1-2 Dichloroethane monitoring Estimated 5-year construction needs: Reinstatement of the chronic silver standard has caused ^ Kodak to spend$30,000 to investigate utilizing the translator method to develop a site specific standard. r r- 11-12 NFRWQPA 2001 WATER QUALITY PLAN UPDATE Major Point Source Inventory Data Operating Agency: NPDES Permit#: CO-0027707 Monfort Lone Tree Permit Expired: 0228/98- extended Description of Treatment Facilities: Anaerobic lagoons, activated sludge system, polishing ponds, and disinfection with chlorine gas. Discharge Location: South Platte River via Lone Tree Creek, SE 3 of Section 31, T6N, R64W. Stream Segment Classification: Class 2 Warm Water Aquatic Life, Class 2 Recreation, and -- Agriculture. Capacities: Design Existing Capacity Load Flow(MGD) 3.2 2.6 Effluent limits required beyond secondary to meet stream standards: Ammonia removal Estimated 5-year construction needs: None r II-13 NFRWQPA 2001 WATER QUALITY PLAN UPDATE Major Point Source Inventory Data Operating Agency: NPDES Permit#: CO-0041360 Western Sugar Company Permit Expired: 06/30/97- extended Description of Treatment Facilities: Non-contact barometric cooling water, used during the concentration and crystallization stages of beet sugar processing, is piped to two connected condenser water holding ponds. Aeration was added to the first pond in 1998. The second pond discharges to the Cache la Poudre River via a Parshall flume. There is no other specific treatment except periodic addition of chlorox and bromine to the pan condensers to control fecal coliform. r Discharge Location: Cache la Poudre River via a Parshall flume. NE 3 of the NW 3, Section 9, Township 5N, Ragne 65W. ^ Stream Segment Classification: Class 2 Warm Water Aquatic Life, Class 2 Recreation, and Agriculture. Capacities: Design Existing Capacity Load Flow(MGD) 6.0 max. 5.20 max. 3.0 ave. 1.48 ave. • Effluent limits required beyond secondary to meet stream standards: None. Estimated 5-year construction needs: Depends on requirements of new permit to be issued. II-14 ^ NFRWQPA 2001 WATER QUALITY PLAN UPDATE Major Point Source Inventory Data Operating Agency: NPDES Permit#: CO 0001058 Colorado Sweet Gold Permit Expires: 10/31/05 Description of Treatment Facilities: dissolved air flotation, clarification, filtration, and land application. Discharge Location: Section 9, T4N, R67W to Segment 9 of the Little Thompson River. Stream Segment Classification: Class 2 Warm Water Aquatic Life, Class 2 recreation 10/16 - 4/30 Class lb Recreation, 5/1 - 10/15 and Agriculture. Capacities: Design Existing Capacity Load Flow(MGD) 0.430 0.2 Organic (lbs./day BODS) 1,750 7-day ave. Effluent limits required beyond secondary to meet stream standards: None. Estimated 5-year construction needs: None. II-15 APPENDIX A - ISDS SURVEY Y. 1 a'. a n. UPPER BIG THOMPSON RIVER WATERSHED ISDS SURVEY I. INTRODUCTION The North Front Range Water Quality Planning Association contracted with the Colorado Department of Health and Environment, Water Quality Control Division, to perform a preliminary survey of the number of individual sewage disposal systems (ISDSs) in the Big Thompson River Watershed between Loveland and Rocky Mountain National Park. This work was accomplished with the cooperation of the Larimer County Department of Health & Environmental (LCDHE), The Estes Park and Upper Thompson Sanitation Districts, and the Big Thompson Watershed Forum. The Larimer County DHE records for ISDS permits were examined; and the number of permits and type and location by section number of each were recorded. It was the intent of this survey to determine approximately how many ISDSs were in use in the watershed above ^ the point of diversion of the river by major municipal water suppliers downstream. II. SETTING The Big Thompson River headwaters are at the Continental Divide in Rocky Mountain National Park. The main stem of the river and several tributaries flow through the Estes Valley and into Lake Estes. The river then flows into the Big Thompson Canyon and emerges from the mouth of the canyon 16.3 miles downstream. One major tributary, the North Fork of the Big Thomson River, and several minor tributaries join the river in the canyon. Just below the canyon mouth, water is diverted for various uses, including municipal water supply. A major concern of municipal water providers such as Loveland, Fort Collins, and Greeley, is potential adverse impacts on their drinking water supplies which come through and from within the Big Thompson River Watershed. The discharge of pollutants such as nutrients into the ground in the basin through ISDSs as they percolate through the soil and enter the ground and surface waters used for drinking water, could eventually create problems for the water providers. Eutrophication of reservoirs and the contribution to the formation of organic compounds which pose problems for water treatment systems are two of the more significant problems faced with excessive nutrients. Nitrogen and phosphorous are the major nutrients which can be discharged through ISDS use. In the State of Colorado, Colorado Revised Statutes, Title 25, Article 10 govern ISDS systems. This statute requires the Colorado Department of Health and Environment to promulgate Guidelines for regulation of ISDS systems throughout the State. Local organized health departments, such as Larimer County Department of Health and Environment are authorized by the statute to promulgate local regulations, which must be stringent as the State Guidelines. The primary purpose of the regulations and statute restrictions are to protect groundwater and prevent pollution. The State guidelines and local regulations specify minimum setback requirements for ISDS systems from streams and other water bodies, wells, springs and other environmentally sensitive areas. They also specify the type of soil conditions which must be present for installing an ISDS. If natural soil conditions are not suitable, modifications must be designed by a registered engineer. The soil condition criteria are designed to filter impurities. LCDHE performs a minimum of two inspections on each ISDS site. A preliminary inspection is done prior to the permit being issued at which time soil and other conditions are determined. Upon completion of construction of the system, a final inspection is also done. All ISDS contractors are licensed by LCDHE and must be knowledgeable regarding the regulations. III. SURVEY PROCESS Records of permits which are issued by Larimer County for the use of ISDSs are kept by the County Department of Environment Health. These permit files were reviewed in detail and data from them were tabulated. It was found that the earliest permits for systems granted by the County were issued in the mid 1950s. Other systems installed and used prior to that time were not permitted, and there are no records for them, unless a repair to any such older system required an inspection and approval by the County after the permit program was begun. The County Health Department files are sorted by the location of the permitted system using the Section, Township, and the Range of each site. Each permit also indicates the date of the site inspection and the type of system to be installed. The files were reviewed by examining the permits in all Sections in the watershed tributary to the river mainstream at the mouth of the canyon. Also, the Upper Thompson Sanitation District and the Estes Park Sanitation District were contacted to obtain information on the approximate numbers of ISDSs that have been taken out of service through connection to the districts' sewers and about how any systems remain in use in their service areas. The tables included in this report list the number of ISDS permits issued by Larimer County by Range, Township, and Section progressing from east to west. The numbers of the different types of systems permitted or repaired are listed — along with the total number for each section in the watershed above the mouth of the Big Thompson River canyon. The types of systems listed include the following: 1.) Vault: a sealed container from which the wastewater is pumped ^ and hauled away for disposal at a site approved by the Board of Commissioners. 2.) Gravel: a standard leaching bed or trenches containing gravel and perforated pipe. r 3.) Infiltrator: a leaching bed or trench system containing plastic chambers which provide the void space and soil contact area normally provided by gravel. 4.) Engineered: a system specifically designed by a qualified engineer to provide disposal of wastewater through other than a standard leaching bed or trench system. May include mounded, a evaportranspiration, wetland, or sand filtered systems or special ,„ gravel or infiltrator systems. 5.) Mound: a raised leaching system constructed in imported soil fill material. 6.) Well: a drywall or leaching pit. 7.) Aerated pond: a pond or lagoon with air added, disposal through precipitation and evaporation. 8.) Compost: a compost container for solid wastes. ^ a T5N- R70W SECTION# TYPE NO of TOTAL 5-70-3 Gravel 22 Engineered 1 23 a 5-70-4 Gravel 1 • Vault 1 2 5-704 Gravel 2 2 5-70-7 Gravel 9 Vault 2 ^ Infiltrator 1 12 a 5-70-8 Gravel 32 Vault 7 Engineered 1 Infiltrator 2 Mound 1 43 a 5-70-9 Gravel 7 Infiltrator 1 8 5-70-10 Gravel 3 Pit(4'diem) 1 4 5-70 Total 94 a T6N- R70W SECTION# TYPE NO of TOTAL 6-7040 Gravel 2 2 6-70 Total 2 M Pape#1 ^ a T5N-R71 "SECTION# TYPE NO of TOTAL 5-71-1 Gravel 4 Infiltrator 1 Vault 3 8 a 5-71-2 Veldt 12 Gravel 5 ^ Infiltrator 1 18 5-713 Vault 30 Gravel 22 Engineered 1 Infiltrator 1 54 a 5-71-4 Gravel 5 Vault 5 10 5-71-5 Vault 1 1 5-71-6 Infiltrator 2 Vault 1 3 �. 5-71-7 Vault 4 4 5-71-9 Vault 14 Gravel 8 Infiltrator 1 23 5-71-10 Vault 1 1 5-71-11 Gravel 1 Vault 2 3 5-71-18 Infiltrator 1 1 5-71-19 Gravel 1 1 a 5-71 Total 127 a Page#2 T6N-R71 W SECTION# TYPE NO of TOTAL 6-71-15 Gravel 1 1 6-71-20 Vault 12 Gravel 4 16 6-71-21 VatUt 17 Gravel 5 Eng-mound 1 23 6-71-22 Vault 3 Gravel 5 Infiltrator 1 9 6-71-23 Infiltrator 6 Vault 3 9 6-71-24 Vain 3 Gravel 1 4 6-71-25 Infiltrator 3 Gravel 3 6 a 6-71-26 Gravel 45 Infiltrator 54 Vault 39 Mound 1 Eng-Evap/trans 1 Eng-Sand Filter 1 141 6-71-27 Infiltrator 14 Gravel 7 Vault 5 26 6-71-28 Gravel 2 2 6-71-30 Infiltrator 1 Gravel 4 Vault 6 11 6-7141 Gravel 4 4 ^ 6-71-34 Gravel 8 Infiltrator 4 Eng-Evap/trans 1 Mound/Infiltrator 1 Vault 4 18 a 6-71-35 Gravel 5 Infiltrator 8 Vault 11 24 6-71 Total 294 Page#3 a T4N- R72W SECTION# TYPE NO of TOTAL 4-724 Gravel 10 Infiltrator 1 Dry Well 1 12 4-72-7 Gravel 22 Eng.-Wetland 1 Well 3 Vault 8 Mound 6 Infiltrator 17 57 4-72 Total 69 a r r a a a a Page#4 - T5N- R72W T5N- R72W SECTION# TYPE NO of TOTAL SECTION# TYPE NO of TOTAL 5-72-4 Infiltrator 4 5-72-15 Gravel 8 -- Gravel 6 Compost 1 Mound 2 Infiltrator 3 Vault 1 Vault 3 ^ Engineered 2 15 Well 1 16 5-72-5 Gravel 6 5-72-16 Vault 2 2 — Infiltrator 1 Mound 1 8 5-72-17 Gravel 18 Infiltrator 9 5-72-6 Vault 1 Engineered 3 Gravel 1 2 Mound 1 31 5-72-7 Engineered 1 1 5-72-18 Infiltrator 4 — Gravel 22 5-27-8 Gravel 22 Engineered 3 Engineered 1 Mound 2 Well 1 Oxid. Pond 1 32 Vault 1 -- Infiltrator 7 5-72-19 Infiltrator 14 /... Mound 1 33 Gravel 37 Vault 1 5-72-9 Gravel 8 Mound 1 Infiltrator 3 Well 1 Mound 1 12 Engineered 1 55 5-72-10 Gravel 1 5-72-20 Gravel 19 Infiltrator 2 3 Vault 4 Mound 2 -- 5-72-12 Gravel 7 Infiltrator 1 26 Infiltrator 1 8 r 5-72-21 Gravel 11 5-72-13 Gravel 2 Vault 16 Mound 1 3 Well 3 Infiltrator 5 35 5-72-14 Gravel 2 2 ^ Pape#5 T5N- R72W T5N- R72W SECTION# TYPE NO of TOTAL SECTION# TYPE NO of TOTAL — 5-72-22 Gravel 8 5-72-29 Gravel 10 Vault 17 Infiltrator 2 ^ Engineered 3 28 Mound 1 Well 1 14 5-72-23 Gravel 5 Vault 11 5-72-30 Gravel 10 Infiltrator 1 Well 2 Well 1 18 Vault 1 13 — ^ 5-72-24 Gravel 1 5-7241 Engineer 1 Infiltrator 1 2 Infiltrator 1 Gravel 66 ^ 5-72-25 Infiltrator 1 1 Well 4 Vault 6 5-72-26 Infiltrator 3 3 Mound 2 80 5-72-27 Gravel 1 5-72-32 Mound 2 Vault 2 3 Gravel 14 Well 1 5-72-28 Gravel 3 3 Vault 3 Infiltrator 1 21 — 5-7233 Gravel 3 ,-. Infiltrator 1 4 5-7234 Gravel 20 Infiltrator 17 Mound 2 Engineered 4 Vault 6 Well 2 51 5-72 Total 525 r. -- Page#6 T6N- R72W SECTION# TYPE NO of TOTAL 6-72-10 Gravel 3 3 6-72-15 Engineered 1 1 6-72-18 Gravel 1 1 6-72-23 Gravel 17 Infiltrator 12 Engineered 3 Vault 14 46 ^ 6-72-24 Vault 1 1 6-72-25 Gravel 5 Vault 5 Engineered 2 Infiltrator 3 15 6-72-26 Gravel 26 Infiltrator 10 Engineered 7 Vault 20 Mound 2 65 6-72-27 Gravel 21 Vault 20 Infiltrator 9 Mound 1 Well 1 52 6-72-28 Gravel 13 Vault 17 Infiltrator 3 Well 5 38 6-72-33 Gravel 3 Vault 6 infiltrator 3 Engineered 1 13 6-72-34 Gravel 6 Vault 8 Infiltrator 2 16 5-72 Total I 251 Page#7 T4N- R73W _ SECTION# TYPE NO of TOTAL 4-73-1 Gravel 155 Vault 6 Mound 9 Engineered 9 Well 3 182 4-73-2 Gavel 10 a Vault 3 Well 2 Infiltrator 1 16 4-73-3 Gravel 10 Well 2 Vault 1 Infiltrator 2 15 4-73-4 Gravel 8 - Well 1 Vault 1 10 4-73-6 Infiltrator 1 ^ Vault 1 Gravel 1 3 4-73-9 Gravel 5 5 4-73-10 Gravel 4 a Well 2 Vault 1 7 4-73-11 Vault 1 -. Gravel 1 infiltrator 1 3 4-73-12 Infiltrator 1 Mound 2 Engineered 1 Vault 1 Gravel 2 7 4-73-14 Infiltrator 1 ^ Gravel 1 2 ^ 4-73 Total 250 ^ Paoe#8 a T5N- R73W T5N- R73W SECTION# TYPE NO of TOTAL SECTION# TYPE NO of TOTAL 5-73-13 Infiltrator 2 5-73-26 Gravel 40 Gravel 3 5 Well 6 Engineered 3 5-73-14 Gravel 1 1 Infiltrator 1 Vault 4 54 5-73-15 Gravel 3 3 5-73-27 Gravel 27 5-73-16 Infiltrator 1 Well 5 Gravel 4 Vault 4 Engineered 1 Infiltrator 1 37 Vault 3 9 ., 5-73-28 Gravel 4 — 5-73-17 Infiltrator 1 Well 3 Gravel 1 2 Vault 1 8 5-73-18 Infiltrator 1 5-73-29 Gravel 1 1 Gravel 3 4 — 5-73-30 Gravel 4 4 5-73-19 Gravel 5 Infiltrator 1 6 5-73-31 Gravel 5 5 5-73-21 Well 1 1 5-73-32 Gravel 3 3 ga 5-73-22 Gravel 6 5-73-33 Gravel 3 Well 4 10 Privy 1 Well 3 7 ,.- 5-73-23 Gravel 14 Well 1 15 5-73-34 Gravel 20 Well 2 5-73-24 Infiltrator 1 Infiltrator 1 23 Gravel 12 Vault 1 5-73-35 Gravel 63 Well 5 19 Well 5 ^ Vault 3 71 5-73-25 Gravel 34 5-73-36 Gravel 35 Vault 3 Infiltrator 10 Well 7 Engineered 5 Engineered 2 Aerated Pond 2 Mound 1 Vault 5 Infiltrator 3 50 Weil 11 .- - Mound 1 69 ,-5-73 Total 4107 Paae119 ^ RESULTS The results of the survey provide an approximate summary of the extent of use of permitted ISDS in the watershed of the Big Thompson River above the water supply diversions that area located just below the mouth of the canyon. The total number of systems permitted by Larimer County since the permitting process began in the mid- - 1940s is about 2,019. The use of about 210 of these systems has been discontinued in favor of a connecting to the sanitary sewer systems of the Estes Park and Upper Thompson Sanitation Districts. Out of the remaining 1,809 permitted systems in use, 399 permits were issued for vault or contained systems. Assuming no leaks of the vault containers, these facilities should not be contribution pollutants to the basin. That leaves 1,410 permitted systems with some discharge to the watershed. The breakdown of the locations of the permitted ISDSs by general area follows: Area No. Systems Lower Canyon 94 Upper Canyon & Drake 248 Cedar Park 250 North Fork 97 Glen Haven 200 Estes Valley 1,130 Most systems in the Cedar Park area have been installed more recently and should be permitted, while the other areas would be expected to have a number of old systems installed before the mid-1950s. Many of those are probably used for seasonal homes or limited occupancy or have been replaced. Larimer County estimates the average life of a system under full time use to be around 20 years. 14 I.S.D.S. Summary by Section Location and Type. INPIL- ENGIN- AERATED COW' RANGE TOWNSHIP SECTION VAULT GRAVEL TRATION EERED MOUND WELL POND 05ITE TOTAL 507 2 9 1 ----- 12 508 7 32 2 1 1 43 - T6N R71W T5N -- 502 12 5 1 18 503 30 22 1 1 54 �- -- 504 5 5 __---- 10 505 1 -_-_--- 1 509 14 8 1 ---_- 23 T6N 520 12 4 16 .-. 521 17 5 1 23 - 0MIM 45 WM. 2 1 SUS 527 5 7 14 26 '" 530 6 4 1 '_--_ 11 r. -- 534 4 8 4 1 1 18 535 11 5 8 24 R72W T4N 506 10 1 1 12 507 8 22 17 1 6 1 Ma T5N 504 1 6 4 2 2 15 508 1 22 7 1 1 1 33 509 8 3 I 12 T5N -- 517 18 9 3 1 --- 31 518 22 4 3 2 1 32 519 1 37 14 1 © 1 55 520 4 19 1 2 26 521 16 11 5 3 35 .^. -- 522 17 8 3 28 523 11 5 1 -- 1 16 r. r -- 529 10 2 1 1 -- 14 r 530 1 10 --- 1 -- 13 531 6 66 1 1 2 4 80 532 3 14 1 2 1 -- 21 534 6 20 17 4 2 2 51 - T6N r r. I.S.D.S. Summary by Section Location and Type. INPIL- ENGIN- AERATED COMP- RANGE TOWNSHIP SECTION VAULT GRAVEL TRATION EERED MOUND WELL POND OSITE TOTAL tl #4V�if1_t*__t_EY7if°Mall____sia 525 5 5 3 2 _--- 15 526 20 26 10 7 2 65 527 20 21 9 1 1 52 528 17 13 3 5 38 533 6 3 3 1 13 534 8 6 2 16 R73W T4N . ? ._z .� , 3 . , r': ; r^ �� 502 3 10 1 2 16 503 1 10 2 2 15 T5N 523 14 1 15 524 1 12 1 5 525 3 34 3 2 © 7 50 526 4 40 1 3 6 54 527 4 27 1 5 37 534 20 1 2 _- 23 535 3 MM. 5 71 EJ 5 35 10 5 1 11 1 69 r r 0 T N 't n , L 7 I `T E CL 1 1 WLU H et 4 . 2 ° :t ft, I Z lan 1_ 11 1 1 s NC P, ce O �.n. _I 11111 11-11111g Q w w 1 t t i 'j t11i'jd `j + ITT, .� • m .id�F Li N • a . a I , i 1t}� 3t} a w �O'al'4'1 ''11ti'111''}1 91111 a : t ' p C I 1 r t 3 } ' I t 011 i , __ j � 3 11 i R ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( \ ( ( ( ( APPENDIX B - UTILITY PLAN GUIDANCE O. North Front Range Water Quality Planning Association Utility Plan Guidance APPROVED JUNE 22, 2000 a ^ ^ ABSTRACT ^ TITLE North Front Range Water Quality Planning Association Utility Plan Guidance AUTHOR SUBJECT Wastewater Utility Plan Guidance Manual SOURCE OF COPIES Dave DuBois NFRWQPA 500 E. 3'" St. Loveland, CO 80537-5773 NUMBER OF PAGES ABSTRACT This guidance document provides necessary information and direction to utility departments, consultants, planners or wastewater managers that need to produce a wastewater utility plan. ^ ^ TABLE OF CONTENTS TABLE OF CONTENTS II LIST OF TABLES IV ^ EXECUTIVE SUMMARY 1 ~ PREAMBLE - 3 ^ I. INTRODUCTION 3 Purpose of Guidance Document General review and recognition 5 Geographic context 5 Who needs to complete wastewater utility plans? 6 What is the role of management agencies? 6 When will wastewater utility plans be needed? 7 ^ First steps in starting a utility plan 8 Wastewater treatment work planning 9 Wastewater utility plan documents 10 Documentation sign-off 11 II. IMPORTANT DEFINITIONS 13 III. WASTEWATER SERVICE AREA CONCEPTS 15 Major service areas 15 Minor service areas 15 Ultimate Planning Areas 16 Wastewater utility service to non-urban areas 17 IV. RELATIONSHIP TO SITE APPROVAL PROCESS 18 V. UTILITY PLANS FOR WASTEWATER WORKS OR FACILITIES 21 General requirements 21 Consolidation of facilities policy 22 Wastewater reuse policy 22 Biosolids policy 22 Environmental components 24 Utility plan components 24 Service area designations 24 Population and employment datasets and forecasts 24 Wastewater flow characterizations 25 Infiltration and Inflow analysis 25 Peaking factor 25 Wastewater flow planning factors 26 a Ii Character of influent 27 Industrial pretreatment 27 Treatment works characterization 28 Location and siting of treatment plant - 28 Existing process system 28 Schematic of treatment works 28 Infrastructure sizing and staging 29 Odor control considerations 29 Air Quality Permiting Requirement 30 Stormwater management plan 30 Site characterization requirements 30 Collection system 30 Interceptors 30 Major lift stations 31 Water quality characterization 31 Water quality limited receiving water 31 Level of treatment for new and expanding facilities 32 -- TMDLs and wasteload allocations 32 Watershed issues 33 Minimum mapping requirements 33 Alternatives analysis 33 Management and financial plans 33 Management structure and agreements 33 Financial considerations 34 Interest in revolving loan 35 VI. UTILITY PLAN FORMAT CHECKLIST &ACCEPTANCE POLICY 36 Suggested outline and checklist 36 Distribution and number of copies 38 VII. RECOMMENDED UTILITY PLAN 39 General criteria 39 Renewal frequency 40 Acceptance procedure 40 VII. REFERENCES 41 VII. APPENDICES 42 Appendix A- Regulations for the Site Approval Process 42 Appendix B-Water Quality Control Division Consolidation Policy 42 iii LIST OF TABLES Table 1 Key contacts 9 Table 2 Review and comment agencies identified in site approval process 12 Table 3 Factors used in the 208 Plan to estimate wastewater flow 26 Table 4 Minimum distribution of copies 38 Aown aft Iv EXECUTIVE SUMMARY This guidance document provides the necessary information and direction to develop wastewater utility plans. The document provides detailed technical information specifically targeting utility departments, consultants, planners or wastewater managers that need to produce wastewater utility plans. Utility plans should be consistent with the guidance contained herein. The new wastewater utility plans will meet multiple wastewater management documentation needs as detailed in this guidance document. Utility plans are critical in determining how wastewater service will be provided to urbanized portions of the region and special case locations that have a permitted wastewater treatment facility. The long-term goal is to have a wastewater utility plan for permitted wastewater treatment systems in the NFRWQPA region. The Area VVfde Plan identifies and maps two types of wastewater management service areas termed the 20 year Wastewater Utility Service Area (WUSA) and the Ultimate Planning Area. Those entities developing utility plans should use these service area concepts. Each wastewater utility plan should identify specific service areas and describe how these areas will be served in context with meeting all required water quality limits. This technical guidance document details who needs to complete a utility plan, the role of the water quality management agency, timing schedules, and documentation requirements. A number of logical steps in this process are outlined that increase the effectiveness and efficiency of wastewater management planning within the NFRWQPA region. Important definitions are provided early in the guidance document, since these definitions are critical in understanding the guidance recommendations. The definitions are consistent with definitions contained in the Colorado site approval process. The site approval regulation should be referenced for additional definitions. ^ Long-range wastewater service areas are called Ultimate planning areas. The portion of the Ultimate planning area beyond the urban growth boundary is based on approved local comprehensive plans, comprehensive long-range utility plans or the area a wastewater provider intends to serve at ultimate development. Ultimate planning areas can extend significantly beyond the 20 year planning horizon. NFRWQPA planning areas and wastewater utility service areas can be modified through flexibility provisions of this document 1 Utility plans will need to meet the requirements of the Colorado Department of Public Health and Environment site approval regulation number 22. The definitions used in the site application regulation define terms used in any utility plan. Utility plans that have been recognized or conditionally recognized by the NFRWQPA will be used in the site approval process. As part of the state Water Quality Act, site approvals are needed for construction or expansion of wastewater treatment works, lift stations, and major interceptor lines. Utility plans document the wastewater management strategy for a wastewater treatment facility (greater than 2000 gallons per day capacity) and the associated planning area. All utility plans should contain a defined set of minimum information (location, sizing, staging, service area, process system, effluent quality and financial arrangements) outlined in Chapter V of this guidance document and respond to appropriate state or federal requirements. The checklist of recommended documentation needs for utility planning should be followed in the preparation a new utility plan. The primary goal in establishing wastewater utility plans is to provide reasonable, feasible and economical wastewater service to areas designated for development within the NFRWQPA watersheds. Utility plans should consider the water quality impact the treatment system will have on receiving waters. The utility plan should include any strategy for meeting all applicable water quality standards and classifications, while quantifying the potential impact a discharger may have on other dischargers. AA— PREAMBLE Wastewater Utility Plans are planning tools that can assist wastewater utilities in planning for wastewater collection system and treatment system changes. The North Front Range Water Quality Planning Association has assembled this document to provide guidance to utilities in its region. Utility plans are voluntary in nature and NFRWQPA does not mandate utilities to submit such plans. Instead, utility Plans present a mechanism by which utilities may choose to participate in a coordinated review and comment process as specified in Colorado Water Quality Control Commission Regulation 22 (22.3(5) and 22.5(6)). These plans will simplify and ease the process by which utilities may seek Site Approvals from Colorado Department of Public Health and Environment's Water Quality Control Division and 208 plan amendments from NFRWQPA. 1. INTRODUCTION PURPOSE OF GUIDANCE DOCUMENT What are utility plans? Wastewater Utility Plana This guidance document provides the necessary are designed to replace information and direction to utility departments, 201 facility plans. consultants, planners or wastewater managers that need to produce a wastewater utility plan. Utility plans should be consistent with the guidance contained in this document. Wastewater utility plans, as referenced in the Areawide Water Quality _ Management Plan (208 Plan), replace the current 201 facility plans. The new wastewater utility plans will meet multiple wastewater management documentation needs, including, but not limited to the following four basic functions: 1. Serve as the primary support document to amend the Areawide Water Quality Management Plan. 2. Serve as the primary support document for a site approval. 3. Provide necessary background and planning information needed by the Water Quality Control Division in the discharge permitting process. 3 4. Serve as a support document for a revolving loan application. Utility plans are intended to be broader in scope than 201 facility plans, with the recognition that the amount of detail will vary between plans, depending on facility complexity and size. Some additional support documentation may be required by the Colorado Department of Public Health and Environment, Water Quality Control Division in the site approval, permitting and loan processes. Utility plans are critical in determining how wastewater service will be provided to urbanized portions of the region. This includes small locales requiring centralized services or specialized sites requiring a wastewater treatment plant with a capacity > 2000 gallons/day (i.e., church camp, truck stop, restaurant). The utility plan level of detail will be kept flexible to accommodate both major and minor wastewater providers. 4 General review and recognition The review and acceptance of wastewater utility plans, associated with designated service areas, that are prepared according to this guidance, is a responsibility of the NFRWQPA. Utility plans may be accepted by NFRWQPA at any regularly scheduled meeting. The guidance directions included herein were developed in cooperation with the Water Quality Control Division. While the division intends to use utility plans as source information in its various processes, the acceptance by NFRWQPA does not preclude the division from requiring additional documentation. This guidance document contains the wastewater planning information needed in the development of utility plans to be incorporated by reference into the Areawide Water Quality Management Plan. Geographic context The 208 Plan processes define how wastewater service and water quality attainment can be achieved within specific geographies. While a wastewater service area may extend into adjacent watersheds, the basic geographic unit for wastewater utility planning will be the watershed. Additionally, regional water quality planning will be driven by the watershed approach. The 208 Plan will identify and map two types of wastewater management service areas termed Wastewater Utility Service Areas (WUSAs) and Ultimate Planning Areas (UPAs) as utility plans are prepared and accepted. Entities developing utility plans as outlined in this guidance document, should use the service area concepts of Wastewater Utility Service Areas and Ultimate Planning Areas. Wastewater Service Area Wastewater Utility Service Flexibility Area (Urban growth - expected in about 20 years). This service area equates to the Urban Y Growth Boundary. `� 5 Each wastewater utility plan should identify a specific service area and describe how this area will be served in context with meeting all required water quality limits. Wastewater service areas should include the area requiring urban area services through the 20 year planning horizon. Areas requiring urban area services beyond the planning horizon are identified as ultimate planning areas. These areas should be included in a locally approved comprehensive plan or similarly approved plan. As development patterns change, ultimate planning areas can be converted to 20 year planning areas when the needs have been identified. Modifying the urban growth boundary is a local planning responsibility. Who needs to complete wastewater utility plans? Wastewater treatment facilities or plants with a permitted discharge greater than 2000 gallons per day, as issued through the Colorado Discharge Permit System (CDPS), should complete a wastewater utility plan or set of plans, as appropriate, if their service area is growing. What is the role of management agencies? Management agencies, as historically designated in the NFRWQPA 208 Plan, are those entities with land control authority. The management agencies and associated operating agencies decide on the need for and specific characteristics of wastewater treatment processes and the details of implementation within specified parameters. Generally, wastewater treatment facility operating agencies will have primary responsibility for developing utility plans. Management agencies are responsible for review of utility plans developed by associated operating agencies. When the management agency and operating agency are the same, the utility plan will be considered as being developed by the management agency. Management agencies are Management agencies may be individual associated with all wastewater municipal governments, general-purpose treatment facilities in the NFRWQPA governments holding National Pollutant region. Generally, counties are Discharge Elimination System (NPDES) management agencies for most discharge permits or other special districts minor wastewater provider& responsible for planning and approving Otherwise, municipalities or other permitted facilities. Management agencies general-purpose governments are are designated by the governor as management agencies. recommended by the planning and regulatory agencies. Management and operating agencies may have the following authorities related to utility planning: 6 o Carry out appropriate portions of the Areawide 208 Plan. o Facilitate coordination between adjacent service entities as to which can best serve a new area. - ❑ Directly, or by contract, plan for, design and construct new wastewater treatment works, including plant and collection system. o Operate and maintain new and existing wastewater treatment works. o Accept and utilize grants, loans and funds from other sources for wastewater treatment management purposes. o Raise revenues, including the assessment of wastewater treatment charges. ❑ Facilitate implementation of the wastewater treatment management plan, with each participating community paying its proportionate share of treatment costs. a Accept industrial wastewater for treatment and manage pretreatment programs. When will wastewater utility plans be needed? Wastewater utility plans meeting minimum recommendations outlined in the Areawide 208 Plan The utility planning process and detailed in this guidance document should be wilt remain flexible for minor prepared for all major wastewater collection and/or wastewater providers- treatment service providers (service providers). For However, sufficient planning existing major service providers, the development and information must be shown review of utility plans should be completed as soon as so there will not be negative possible and should be linked to the five-year permit water quality effects caused renewal cycle as necessary. It is anticipated that some by any proposed new facility, service providers will not complete a utility plan. facility expansion or change Additionally, some wastewater collection system to service area. providers may not complete a utility plan. If there is no reason to change the treatment plant capacity, modify the service area or upgrade the treatment works, a utility plan may not be necessary. However, any significant changes to the treatment works or service area for these systems will require a utility plan for review by NFRWQPA. First steps in starting a utility plan Recommended first steps in preparing a wastewater utility plan are outlined below. ❑ Determine the type and intended use of the utility plan: 1) Existing wastewater treatment plant, interceptor or lift station - no upgrade anticipated within 5 years 2) Existing wastewater treatment plant, interceptor or lift station — upgrade necessary within five years; 3) Existing wastewater treatment plant, interceptor or lift station — site approval in progress; or 4) New wastewater treatment works. ❑ Determine who needs to be involved in the development of a utility plan and the general level of involvement in the process: They may include but are not limited to the following 1) NFRWQPA 2) Management agency; 3) Operating agency (mandatory); 4) Local governments 5) Special districts; 6) Technical support group(s) (e.g., consultant company, technical experts); 7) Citizen groups, homeowner associations and the general public; 8) Industries (either through pretreatment program or direct within service area); 9) Watershed association 10) State agencies (e.g. Water Quality Control Division, State Engineer, Colorado Division of Wildlife); and 11) Federal agencies (e.g. U.S. Army Corp of Engineers, Federal Fish and Wildlife Service) ❑ Collect all existing documentation and compare to outline to determine missing elements or areas requiring revision for new utility plan. ❑ Make preliminary contact with potential key informational contacts (Table 1) to; 1) Obtain information needed in the utility planning process; and 2) Determine issues or problems that need to be addressed during the utility planning process. ❑ Develop utility planning process schedule and begin. r 8 Table 1 Key contacts Level Contacts Types of Information Planning Regional Planing Agency Staff Guidance documents, maps of Agency service areas, urban growth boundary, population and employment projections, wastewater flows, water quality assessments, wastewater management policies, monitoring information, committee contacts Local Planning and zoning department; local Urban growth boundary; government health department comprehensive plans; zoning; development plans Management! General-purpose government as a Wastewater strategy; existing operating management agency or a watershed permits; watershed plans; Agency association as the management agency TMDLs, facility plans; existing infrastructure plans State Water Quality Control Division staff Regulations (i.e., site Agencies including watershed coordinator, permit approval); effluent limits; writer (existing permit), revolving loan permits; wasteload allocations, staff(if potentially interested in state water rights, loan loan); State Engineer requirements, air quality permit requirements, stormwater management plan requirements, biosolids Federal U.S. Army Corp of Engineers, Federal Wetlands, floodplains, Agencies Fish and Wildlife Service, biosolids application, Environmental Protection Agency and endangered species, national potentially others environmental protection act (NEPA) Wastewater treatment work planning Utility plans will The utility plan or set of plans can be applied to one or provide information more existing or proposed wastewater treatment works. In for watershed some cases, joint utility plans between wastewater planning efforts. providers may be appropriate, because of management requirements or to meet water quality goals. A wastewater utility plan document or set of documents provides basic planning information for wastewater treatment works to: 9 rs. o Meet requirements of the site approval regulations as adopted by the Colorado Water Quality Control Commission (Regulation 22 contained in Appendix A). ❑ Provide sufficient information to amend the regional 208 Plan related to water quality assessments, watershed management and wastewater management strategies. ❑ Provide wastewater treatment works or plant information, discharge data or other relevant documentation that are required in the preparation of total maximum daily loads, wasteload allocations and/or other watershed planning efforts. ❑ Provide wastewater treatment works or plant information to assist in preparing discharge permits or applying for loans. ❑ Assure that boundaries between adjacent 20-year and Ultimate Boundaries between planning areas, when identified by a wastewater provider, do adjacentservice wastewater utility areas not overlap, unless these overlap areas are incorporated into cannot overlap. established memorandums of understanding. ❑ Assure that the management and operating responsibilities, as outlined in the 208 Plan, can be met by both major and minor wastewater service providers. Wastewater utility plan documents A wastewater utility plan may consist of one report A wastewater utility plan can be a set of (document) or a number of separate utility reports linked documents, prepared by the same agency or a combination of provided all linked agencies. Multiple documents can provide separate documents are filed in geographical detail and/or facility detail, or they separately the reference library meet the goals of the wastewater utility plan. Multiple as the final utility plan. documents must be submitted to NFRWQPA as a set, including all appropriate maps, when the utility plan is first submitted for acceptance. Thereafter, only those documents that are updated, amended or otherwise changed need be submitted for acceptance. The utility plan report or set of documents and all subsequent support documentation will be filed and -- maintained by NFRWQPA as the final utility plan for a specified treatment plant. Final utility plans, accepted by NFRWQPA, should be updated every five to 10 years or amended from time-to-time. Additional update or amendment documents can be appended to the original utility plan, after acceptance, without re-issuing the final utility plan. A database will be maintained by NFRWQPA on final utility plans and any supplemental documents. 10 Documentation skin-off Utility plans and any subsequent amendments will have an associated sign-off form. The site approval process identifies a list of agencies who are given an opportunity to make a recommendation on an application for construction of new, modified or expanded domestic wastewater treatment plants (Table 2). Those agencies identified in the site approval process should sign-off on all utility plans reviewed and accepted by NFRWQPA. These signature agencies will also have the opportunity to attach and file any comments with their signature. This sign-off form is titled Local Agency Utility Plan Acceptance or Conditional Acceptance Form. Original sign-off forms will be kept on file at NFRWQPA and the Water Quality Control Division as part of a site approval process or for other document processing. NFRWQPA will sign-off on utility plans using a separate form titled Areawide Water Quality Management Agency Acceptance or Conditional Acceptance Form. Original sign-off forms will be kept on file at NFRWQPA and the Water Quality Control Division as part of a site approval process or for other document processing. Wastewater providers with accepted utility plans will only require the signature of the planning agency to process a site approval (Table 2). Wastewater providers who do not complete a utility plan will be required to go through a more lengthy process of obtaining independent signatures from all sign-off agencies for each site approval (Table 2). Aak '" 11 Table 2 Review and comment agencies identified in site approval process Agency No utility plan Accepted utility plan Management Agency X County (if in unincorporated area) X City or Town X Local Health Authority X Water Quality Planning Agency X X' Adjacent State or Federal Agency X X' — Only signature required with accepted utility plan and agreement in place between NFRWQPA and the Water Quality Control Division. r 12 II. IMPORTANT DEFINITIONS Ultimate Planning Areas — It is the intent of NFRWQPA that wastewater service areas identified in the Areawide Water Quality Management Plan (208 Plan) be based on the urban growth boundary and any additional potential service area identified by approved local comprehensive plans, comprehensive long-range utility plans or the area a wastewater provider intends to serve at ultimate development. Ultimate Planning Areas are either equal in total land area to wastewater utility service areas (WUSA) or larger. Consequently, no Ultimate Planning Area can be smaller than a WUSA. The portion of the Ultimate Planning Area beyond the urban growth boundary is not expected to require urban services until after 20 years from the time a utility plan is completed. However, this portion of the Ultimate Planning Area can be converted into WUSA as needed. Design Capacity -The rated capacity (capability of a treatment plant to meet effluent limitations). This rated capacity shall be given in million gallons per day (MGD) and organic loading in pounds BOD5 per day. This rated capacity is identified in the discharge permittee's permit; or for proposed facilities, it will be specified when the permit has been issued. Utility Plan— Complete set of documents or single document that meets the minimum utility plan requirements and is accepted or conditionally accepted by NFRWQPA. Major Wastewater Provider- Major wastewater providers serve over 200 residential equivalents and the permitted wastewater treatment facility has a design capacity greater than 50,000 gallons per day. The treatment plant does not qualify as a minor treatment facility. Management Agency -Any public agency designated for wastewater management responsibilities in an area-wide Water Quality Management Plan prepared under Section 208 of the Federal Act and certified by the Governor. Such designation shall be considered final only upon the agency's acceptance of its responsibilities as outlined in the appropriate 208 Plan. Minor Wastewater Provider- Minor wastewater providers generally serve less than 200 residential equivalents. The permitted wastewater treatment plant has a design capacity not exceeding 50,000 gallons per day and the facility does not plan to increase its capacity beyond 50,000 gallons per day within the 20 year planning horizon. NEPA Requirements—The National Environmental Policy Act establishes requirements for Environmental Assessments and Environmental Impact Statements. 13 Non-discharging Wastewater Treatment Works — Some wastewater treatment works that do not discharge to surface or groundwater can be designated by the Water Quality Control Division as non-discharging and do not require a permit to operate. Planning Agency—The NFRWQPA is the designated planning agency Larimer and Weld Counties. Urban Growth Boundary— Defined through an MOU between a county and a municipality as the land area planned to urbanize within a specific timeframe. This land area is planned by local governments to need urban services and utilities before the year 2020 or other time horizon established by the MOU. Urban— Land developed in residential, employment, service and other uses in proximity to each other so as to afford convenience, access and community. Residential densities in excess of one dwelling unit per acre and served by either central water or sewer services, or both, are considered urban in nature. The exception occurs where dwellings are clustered to preserve open space in conjunction with an open space plan, or in accordance with an approved wastewater utility plan. Urban area—The land area that has been developed at densities and in character with the definition of urban and which requires central water and sewer as well as other infrastructure and service needs. Wastewater Utility Service Area (WUSA) -A WUSA is defined as the portion of the Ultimate Planning Area defined by the Urban Growth Boundary. A WUSA requires urban services through the 20 year planning horizon. WUSAs can be modified through the flexibility provisions in this policy. Comprehensive Plan -A Comprehensive Plan is a document that guides the physical land use development of an area. It is comprehensive in that it considers and coordinates the many inter-related aspects of development such as land use, transportation, utilities and public facilities, parks and open spaces. r '� 14 III. WASTEWATER SERVICE AREA CONCEPTS Major service areas , If a wastewater provider serves over 200 residential Major wastewater equivalents and the permitted wastewater treatment facility utility service areas has a design capacity greater than 50,000 gallons per day, exceed 200 residential the associated WUSA will be classified as major. Utility equivalents with a plans for major wastewater providers serving major WUSAs plant design capacity are expected to provide all minimum information as >50,000 gallons/day. recommended by this guidance document. The 208 Plan will continue to establish the boundaries between WUSAs to assure that there are no overlaps of service areas or Ultimate planning areas. Utility plans that contain overlapping service areas, whether they are WUSAs or UPAs, can not be accepted by The shape or contiguity of NFRWQPA. Overlap issues must be resolved through a major wastewater utility local planning processes and should not be identified in service area is defined utility plans being submitted to NFRWQPA for through local planning acceptance. processes. Minor service areas Minor wastewater providers If a wastewater provider serves fewer than 200 generally serve fewer than 200 residential equivalents and the permitted residential equivalents with a wastewater treatment facility has a maximum maximum treatment plant design capacity of 50,000 gallons per day, then capacity of 50,000 gallons/day. the associated WUSA will be classified as minor. If the minor wastewater provider plans to increase its plant capacity beyond 50,000 gallons per day within the 20 Year planning horizon, then a new and more detailed utility plan should be prepared before this expansion can occur. The shape or contiguity of minor WUSAs not defined by the extent of urban development can be identified through the utility planning process. These systems may be isolated wastewater treatment facilities that are not contiguous with the extent of urban development. The accepted minor WUSA may or may not match the property owned by a minor wastewater provider. Utility plans for minor wastewater providers that serve minor WUSAs may not have to meet all guidance requirements. The minimum information requirements for minor utility plans will remain flexible in this guidance document. Minimum requirements will be determined by NFRWQPA on a case-by-case basis. Wastewater service providers serving minor WUSAs should have active wastewater treatment facility discharge permits. Wastewater service providers with inactive 15 tk wastewater facilities or permits will not be shown in the 208 Plan, and they will not be required to complete utility plans. Service areas for inactive or non-discharging wastewater treatment works will be dealt with on a case-by-case basis and can be processed without a utility plan. However, any minor facility being re-issued a discharge permit by the Water Quality Control Division will be treated as a new facility and will be requested to complete a utility plan before being incorporated into the 208 Plan. For minor facilities or minor WUSAs, the facility capacity and service area is established based mice areas for some minor only on the area intended to be served and on wastewater service areas may not be contained within the current facility sizing as approved in a site the urban growth boundary. application or discharge permit. The minor WUSA and facility design capacities are assumed to remain less than 50,001 gallons per day capacity. If a management agency or operating agency expands its Minor treatment wastewater treatment facility above the maximum 50,000 facilities that gallons per day capacity, the treatment plant will be treated as expand capacity a major facility. The minor WUSA and the UPA for the minor beyond 50,000 gem:me/thy wig be treatment facility will be assumed equal in area unless classified as major ` amended. treatment facilities. Ultimate Planning Areas Long-range wastewater service areas identified in the 208 Plan are called Ultimate Planning Areas (UPA). No UPA can be smaller than a WUSA. The portion of the UPA beyond the urban growth boundary is based on approved local comprehensive plans, comprehensive long-range utility plans or the area a wastewater provider intends to serve Ultimate Planning Areas are at ultimate development. In some cases, the either equal to wastewater utility UPA may represent the total amount of urban service areas,MY USA)or larger. area needed for a projected longer-term population or the ultimate build-out of a utility service area. Since WUSAs and UPAs recognize different geographies, the ultimate pie growth density assumptions may also be different for the two areas may represent areas. Wastewater providers are expected to provide their the ultimate build-out own density assumptions and flow projections consistent with of a service area. local comprehensive plans for UPA's. 16 A planning area designation amendment must precede an An amendment to a WUSA that extends beyond an expansion of a utility service established or recommended UPA will not be • area, if the proposed utility recognized in the 208 Plan until the appropriate service area extends beyond wastewater utility plan is amended and has been the accepted planning area reviewed by the management agency. As required, boundary. the NFRWQPA may appoint a subcommittee to review utility plans. UPA planning area recommendations must be presented to a review subcommittee for review and recommendation as part of the utility planning process. UPA designations will be mapped and maintained in the technical appendices to the 208 Plan. Local resolution of overlap issues is required before there is regional recognition. A watershed association and NFRWQPA staff may provide appropriate technical assistance to help resolve planning area overlap issues through a utility technical support process. Technical support by NFRWQPA staff will only be provided on a request basis. If conflict resolution can not be achieved on a timely basis, then one or both entities having a conflict can take the issue directly to the Association for recommendation. Wastewater utility service to non-urban areas Wastewater utility service Wastewater service to non-urban areas, which can areas (WUSA) can have include such uses as designated open space, land areas designated as permanent non-urban wastewater served non-urban wastewater developments, agricultural or special use, which may planning areas. not be economically served by centralized service in the near-term, will require other management solutions. Interim non-urban areas Non-urban wastewater planning areas may be designated by that do not require the land use planning agency as permanent non-urbanized centralized services may areas that are to be permanently served by individual be served by on-site sewage disposal systems or on-site systems with a design systems in the interim capacity of 2,000 gallons/day or less. Wastewater planning period. areas may also be designated by the land use planning agency as permanent non-service areas (open space, agricultural areas and low density non-urban with no more than one residence or structure per 35 acres). Interim non-urban areas can also be designated as being expected to eventually - urbanize (after 2020) and require centralized services. Wastewater utility plans should address how these interim non-urban areas within the UPA planning area will be served. An estimate should be included in the report on when urban service requirements will be available or required. Management agencies are required to identify a method to evaluate water quality effects related to on-site treatment and disposal systems located within designated UPA Planning Areas or wastewater utility service areas. 17 The nonpoint source management agency, watershed association or other responsible management agency that has assumed responsibility for non-urban wastewater planning should be identified. Unless otherwise specified, the county should be considered as the nonpoint source management agency. This management entity should be requested to provide an appropriate method or methods to evaluate water quality effects related to large lot developments served by individual sewage disposal systems within non-urban wastewater service areas. The wastewater utility plan will need to map large lot developments located in service areas. IV. RELATIONSHIP TO SITE APPROVAL PROCESS The Colorado Department of Public Health and Environment regulation number 22 a (Regulations for the Site Approval Process), as approved and amended from time to time, is used as a reference. Utility plans should meet the requirements of regulation 22. The definitions used in the site application regulation should be used to define terms used in any utility plan. Utility plans that have been accepted or conditionally accepted by NFRWQPA will be used in the site approval process by NFRWQPA As part of the state Water Quality Act, site approvals Site approvals are needed are needed for construction or expansion of wastewater for construction or expansion of wastewater treatment works, lift stations, and major interceptor treatment works, lift lines. Final action on site applications is a function of stations, and major the Water Quality Control Division after a review by interceptor lines. appropriate local entities. The state act lists three items for the division to evaluate: 1. the long-range comprehensive plan for the area as it affects water quality and any approved regional water quality management plan for the area; 2. management of the facility on the proposed site to minimize the potential adverse impact on water quality; and 3. consolidation of wastewater treatment facilities whenever feasible (Water Quality Control Division guidance, Appendix A). The Colorado Water Quality Control Commission Operating agencies must certify that refined these criteria to ensure that: the treatment works will not be overloaded by the addition of o existing treatment works are not overloaded wastewater flow from new lift stations when connecting new lift stations or nr iniwrnonMra` interceptors; 18 ❑ proposed treatment works are planned and constructed in a timely manner as needed; u proposed treatment works are developed considering the local long-range comprehensive plan for the area as it affects water quality and any approved regional water quality management plan for the area; ^ u proposed treatment works or interceptor protect water supplies; ❑ proposed treatment works or interceptor have been properly reviewed by all necessary local, state, and federal government agencies and planning agencies; ❑ proposed location will have no foreseeable adverse effects on the public health, welfare, and safety; ❑ applicants will provide for adequate operational management, including legal authority and financial capabilities; ❑ proposed treatment works be located so that they are not unnecessarily endangered by natural hazards; and a ❑ objectives of other water quality regulations will not be adversely affected. The site approval regulation allows: in the interest of facilitating a more effective and timely review of proposed new and expanded domestic wastewater treatment works, each planning agency may establish and implement a coordinated review and comment process to carry out the provisions of this regulation in coordination with its water quality planning responsibilities. Where a planning agency wishes to estabfish such a coordinated process, the Division may enter into an agreement with the planning agency specifying the procedures for this coordinated process. The intent is to estabfish a single process 1) to meet these site approval requirements and 2) to meet the requirements for amendments to the water quality management plan. The process should be designed so that a new or expanded domestic wastewater treatment works which is approved as part of the water quality management plan may be concurrently deemed to also meet the requirements of these site approval regulations at the time of its inclusion in the plan. Under such a coordinated process, the Division retains final authority for approval or denial of each project which is regulated under these site approval regulations. 19 NFRWQPA intends to develop a memorandum of understanding with the Water Quality Control Division to coordinate the site approval process within the NPRWQPA planning region. NFRWQPA intends to enter into an agreement with the Water Quality Control Division that specifies procedures for this type of coordinated process. The wastewater utility plans are designed to meet the requirements of a 208 Plan amendment, the site application process, and to provide the planning information needed by the division in the permitting process and in the revolving loan program. UPAs will be used in the review of site approvals where it is necessary to size facilities such as interceptors based on a planning horizon that extends beyond 20 years to provide cost-effective service. In general, treatment facilities and lift stations should be staged to provide for 10-year capacity increments, but may be staged for shorter (e.g. interim lift stations) or longer periods with appropriate economic justification. Consequently, interceptors and lift stations can be located within designated UPA. However, wastewater infrastructure designed to only serve UPAs will not be used in the site approval process or to meet other appropriate regulatory requirements. Wastewater infrastructure designed to serve areas within the WUSA can be physically sited within UPAs, which are outside of the urban growth boundary. Since interceptors are often sized to last beyond 20 years, they may have excess capacity more appropriate to ultimate build-out of a designated area. Interceptors may be staged for ultimate build- ^ out with appropriate economic or right-of-way justification. . 20 V. UTILITY PLANS FOR WASTEWATER WORKS OR FACILITIES General requirements Utility plans document the wastewater management strategy for a wastewater treatment facility (greater than 2000 gallons per day capacity) and the associated planning area. All utility plans will contain a defined set of minimum information (location, sizing, staging, service area, process system, effluent quality and financial arrangements) and respond to appropriate state or federal requirements. - Utility plans for minor facilities or minor WUSA may be approved even though they do not meet all of Utility plans define the recommended planning elements provided location, sizing,staging, service area, process sufficient planning is completed to show that potential long-term adverse water quality effects system,effluent quality, g" financial arrangements from any proposed new facility or facility expansion and appropriate state or will be minimized. Utility plans will provide planning federal requirements. documentation for both the designated utility service area and planning area, with the utility service area having the maximum level of information. The primary goals in establishing wastewater utility plans are to provide reasonable, feasible and economical wastewater service to an area designated for development within the NFRWQPA. Utility plans should consider the water quality impact the treatment system will have on receiving waters. The utility plan should include any strategy for meeting all applicable water quality standards and classifications while estimating the potential impact a discharger may have on other dischargers. Information in a utility plan is used in the 208 Plan process to document the best method of providing wastewater service while meeting water quality goals through the 20-year planning horizon. Wastewater utility plans can also function to define service beyond the 20-year planning horizon. Wastewater utility plans are not applied to water supply, nonpoint source or stormwater service areas. The NFRWQPA will maintain a reference set of accepted utility plans developed by management agencies or operating agencies for all wastewater treatment facilities with an active discharge permit. The siting and expansion of direct industrial discharges will be identified in the 208 Plan under special provisions. Direct industrial dischargers who also process domestic wastewater will be encouraged to develop wastewater utility plans. Any wasteload allocation or total maximum daily load analysis included in a utility plan will be based on population and employment forecasts and wastewater flow estimates developed through acceptable alternate projections. 21 The following five policies will be considered for adoption by the NFRWQPA as soon as it is practicable. These statements should be used as guides until the individual policies are approved. Consolidation of facilities policy The wastewater utility plan should identify opportunities for wastewater treatment system consolidation. Often, larger wastewater treatment facilities can provide service more effectively while providing a higher degree of treatment than can be achieved through smaller treatment facilities. While large facilities do not always provide better water quality treatment, consolidation of facilities can eliminate smaller treatment facilities, which may not be financially capable of operating properly and may be exceeding their discharge permits. The decision for facility consolidation is determined in the utility planning process and is based on economics, cost effectiveness, operations, water quality impacts, physical constraints and water rights. Wastewater reuse policy The utility plan should explore any opportunities for wastewater reuse for non-potable uses, future potable use, or as a method for additional pollutant removal, as appropriate. The utility plan should identify those situations where reuse can be used to fulfill water rights and augmentation plans. The utility plans should identify any reuse considerations as part of the alternative analysis. If reuse is not an option, this should be clearly stated in the utility plan documents. Reuse is an efficient means of preserving water resources in areas where those resources need to be protected. Reuse of wastewater for water rights or augmentation purposes should be carefully reviewed in relation to downstream water supplies as related to potential health hazards and environmental risks. The quantity and quality of wastewater for reuse should be determined during the planning process. Biosolids policy Although there are other legal means of disposing of biosolids (such as incineration and land filling) neither method benefits Colorado as does recycling. Burning biosolids consumes huge amounts of energy and pollutes the air, while burying them takes up valuable space in local landfills. Recycling biosolids is clearly the preferred method for disposal. NFRWQPA recognizes and supports the economic and environmental benefits of recycling biosolids, and appropriate policy documents will recognize the value of biosolids recycling. The biosolids positions are as follows: 22 1. Public health and environmental quality are protected under federal and state biosolids regulations. The NFRWQPA encourages member governments not to adopt local public health regulations for biosolids that are more stringent or restrictive than federal or state regulations. - 2. The NFRWQPA encourages the practical and beneficial land application of biosolids in the region. Member governments with land use authority should regulate biosolids disposal through the zoning and platting process. Local regulations should focus on transportation, aesthetics and land use issues. 3. The NFRWQPA does not support any biosolids disposal practice that does not attempt to beneficially reuse this valuable resource. The biosolids policy will be used by the NFRWQPA staff in the site approval process as defined in the 208 Plan. The state revolving loan program point system should be modified to give bonus points for wastewater treatment facilities using or planning to use biosolids reuse. The NFRWQPA will work with the Water Quality Control Division of the Colorado Department of Public Health and Environment to change the state revolving loan program regulation. A utility plan identifying a biosolids disposal practice that does not include beneficial reuse will not be acceptable to NFRWQPA. Wetland policy If the utility plans will have any effect on wetlands, then the NFRWQPA wetland policy should be considered in the planning process. Wetlands can have ecological and societal values, which make them an important regional resource. NFRWQPA supports the concept of wetlands protection and all NFRWQPA plans will recognize the value of wetlands as part of the planning process. In recognition of this regional concept, NFRWQPA adopted the following position. The adopted regional The NFRWQPA wetland policy is: no net loss of wetland wetland policy states functions should occur within the region, and cost-effective ...no notion of wetland use of wetlands in urban design should be encouraged. functions within the Development within a designated or delineated wetland NFRWQPA region. should occur only when no other alternative exists. Wetland mitigation should consist of replacement wetlands of a similar type and quality, as determined by appropriate scientific analysis, which results in an equal (at the minimum) replacement of lost wetland functions. Wetland replacement within the same hydrologic watershed as defined in the 208 Plan is the preferred compensatory mitigation measure. ,r. 23 Environmental components Environmental (NEPA) information If a wastewater provider intends to apply for a state revolving loan, the requirements of the National Environmental Protection Act (NEPA) apply to the planning and review process (40 CFR, Parts 1500-1517). Integrating the NEPA process early in the planning stages insures that decisions reflect environmental values, avoid potential delays later in the process and reduce conflicts. The NEPA process can result in the preparation of an Environmental Assessment or an Environmental Impact Statement. The utility plan should reference any NEPA processes that are or may be required to implement the wastewater management strategy. ^ Utility plan components Service area designations The utility plan can recognize two types of wastewater service areas: wastewater utility service areas (WUSAs) and ultimate planning areas(UPAs). WUSAs are defined as those areas within the region that require urban services through the 2020 planning horizon or any subsequent modification to the urban growth boundary or planning horizon. Ultimate planning areas are based on existing local comprehensive plans, comprehensive long-range utility plans or the area a wastewater provider intends to provide with service at ultimate development. UPAs are either equal to wastewater utility service areas or larger. Consequently, no UPA can be smaller than a WUSA. Population datasets and forecasts The foundation of water quality planning is the forecast of expected wastewater treatment needs, which is tied to future population levels. Forecasts define wastewater flow rates and the capacity needed to treat the projected volume of wastewater. Forecasts for utility service areas and planning areas are included in the 208 Plan. The areas for the population datasets are WUSAs. Associated wastewater flow projections will be generated from the datasets and they will be directly related to WUSAs, but not necessarily to UPAs. The 208 Plan may use equivalency processes to convert population data sets to WUSAs for selected planning years (five year intervals) through the 20 year planning period for use with longer-term potential development within UPAs. Wastewater utility plans can show alternative projections and flows for WUSAs. A number of factors can cause differences in projections. The utility plan will need to list the appropriate factors and discuss how these factors alter projections. 24 Wastewater utility plans will need to provide their own projections and flows for UPAs or WUSAs beyond the year 20 year period. Forecasts for WUSAs will be used in the site approval process and to meet other appropriate regulatory requirements. As necessary for cost-effective utility service, UPA forecasts may be used to size a wastewater facility (e.g., the size of an interceptor, land area needed for a treatment facility or lift station site). These forecasts will be so referenced in the site approval or •- other appropriate regulatory processes. Wastewater flow characterizations ^ Population projections through the 20 year planning horizon in the 208 Plan will be linked to each WUSA and to each area designated for interim or permanent non-urban wastewater service. The 208 Plan will predict wastewater flows in five-year increments through 20 years for major and minor WUSAs and for non-urban service areas defined by management agencies at the watershed level. Wastewater flow projections maintained in the 208 Plan will be adjusted for future years using available discharge monitoring reports (DMRs), when available. Infiltration and Inflow analysis An infiltration and inflow(I&1) analysis may be required by the Water Quality Control Division for some treatment works. The utility plan should contain any I&I study results, if appropriate for the facility. Peaking factor Generally, the average total flow will be based on the 30-day monthly average. Under site specific conditions, an annual average flow or other specified flow certified by the Water Quality Control Division can be used to determine peaking factor. Additionally, •- the utility plan may use a different peaking formula or factor, provided additional site specific justification is included in the utility plan. Local data documenting peaking factors can serve as justification for alternate peaking factors. The maximum peaking factor of 5.0 is generally applied to small treatment systems or special use sites (e.g., church camps, restaurants, day camps). No minimum peaking factor is recommended •- in this guidance, however a factor of 1.0 or less would not be acceptable. Otherwise, the above peaking formula should be used for planning purposes in utility plans. Peaking Factor = 3.65 t (Average Total Flow MGD)o.,6r (The maximum peaking factor value used in any assessment is 5.0) 25 r-. Wastewater flow planning factors Table 3 provides some planning factors used to estimate wastewater flows. These numbers are provided for guidance and other factors can be used, provided they are identified within the utility plan. The 208 Plan recommends using a residential wastewater flow factor of 85 gallons/person/day, which includes a 10 gallon/person/day inflow and infiltration component. The 208 Plan also recognizes a wastewater flow generated by employment with the regional average at 50 gallons/employee/day. Generally, this 85/50 wastewater flow factor calculation provides a good projection and the numbers have been verified using the daily and monthly reports submitted to the Water Quality Control Division. Lacking employment data, a factor of 100 gallons/person/day as a residential equivalent can provide, generally, comparable projections. Table 3 Factors used in the 208 Plan to estimate wastewater flow Types of Use „ I Average Wastewater Flow General Population Single or Multi-family Equivalence- Regional 85 gallons/day/person General Employment General Employment- Regional 50 gallons/day/person Household Equivalent (Residential development without employment) Households I 250 galbns/household/day Site Specific Planning Averages (gallons/day/person) Stores, Offices, Small Business- Employees 25 Stores, Offices, Small Business- Guests 8 Hotels/Motels- Employees 50 Hotels/Motels- Guests(24-hrs) 20 Cabins- Guests (24-hrs) 50 Dining Facilities (Per Meal) 10 Schools (no showers)-day use(8-hrs) 12 Schools(showers) - day use(8-hrs) 25 Tourist/Trailer Camps- Employees 50 ^ Tourist/Trailer Camps- Guests (24-hrs) 85 Recreational Facilities- Employees 50 Recreational Facilities- Guests 20 26 Character of influent The character or strength of wastewater influent can affect facility design and operation. The utility plan should identify any unusual characteristics of the wastewater or special connectors that could alter the influent quality. If default values for biological oxygen demand (BOD) and total suspended solids (TSS) are used in the design process, then these values should be listed in the utility plan. Industrial pretreatment Some industries discharging - The term pretreatment refers to the pollutants must pretreat their requirement that industries discharging wastewater before discharging pollutants treat their wastewater before into municipal sewers. discharge to municipal sewer systems. The three objectives of the National Pretreatment Program are: 1. protect municipal wastewater treatment systems from interference caused by industrial wastes; 2. protect the nation's waters from industrial pollutants which pass untreated through wastewater treatment systems; and 3. provide for the beneficial use of wastewater biosolid as soil conditioners and fertilizers, by preventing excessive contamination by industrial pollution. The U.S. EPA administers the National Pretreatment Program under the General Pretreatment Regulations, first adopted in 1978. These regulations, amended in 1981 and again in 1988, establish specific requirements that both wastewater treatment facilities and industries must comply with to reduce industrial pollutant discharges. The General Pretreatment Regulations require that any wastewater treatment facility designed to treat over five million gallons a day of wastewater, or receives significant discharges from industrial sources, must develop a local pretreatment program conforming to EPA regulations. Management and operating agencies must meet -- specific requirements under the General Pretreatment Regulations. Utilities should indicate whether they have a EPA approved pretreatment program. r 27 Treatment works characterization Location and siting of treatment plant Utility plans must locate existing and/or planned wastewater treatment works to serve areas defined within WUSAs or located in ultimate The utility plan must include planning areas. The treatment plant footprint (shape location of treatment works and total acreage) must be described or mapped. (site foot-print)and related The footprint needs to be able to accommodate all infrastructure. appropriate infrastructure identified for a 20-year planning period. Utility plans must locate existing and planned lift stations to serve areas defined within WUSAs or located in ultimate planning areas. Existing facilities and facilities to be built within two years should be shown at a specific location. New facilities planned beyond a two-year time horizon may be shown/mapped at a specific location or may be shown in a general area envelope, as long as water quality issues are essentially the same within that envelope. Existing process system The utility plan will include a summary of the major system processes and types of treatment for an existing treatment works including: ❑ level of treatment (i.e., secondary, advanced for phosphorus removal, etc.); Summarize all major system processes ❑ analysis of existing system performance, including design capacity of major deficiencies and positive attributes; treatment processes. A u sizes of system components; and u biosolids processing system and method of beneficial reuse or disposal. Include current and Schematic of treatment works projected future capacities for The utility plan should contain a schematic drawing of treatment plant, lift the treatment works in sufficient detail to characterize stations, and the flow processes, capacities and operations. interceptors. 28 Infrastructure sizing and staging Include current capacities and projected future capacities for all treatment plants, lift stations, and interceptors (including a construction schedule based on time or capacity milestones) that are needed to serve the wastewater utility service area. In addition, include those facilities needed to serve the ultimate planning area, if appropriate. The maximum level of For facilities that need to be constructed within five detail is required for years, the location, staging and capacity must be capital improvements estimated with detailed flow projections. The anticipated within a five- implementation of the five-year capital improvement year period. program should be outlined with critical dates listed. The level of detail and accuracy for projected infrastructure capacities decreases beyond the five-year period. The level of detail in the utility plan should be based on the following considerations: ❑ six to 15 years, planning for major infrastructure and projects with projections and capacities based on best professional judgement; ❑ 16-25 years, include only anticipated major expansions without projections; and ❑ >25 years, concepts only as related to local comprehensive plans or predicted ultimate development. Sizing and staging of the wastewater treatment facility are tied to projections of population and flow. This size, or hydraulic capacity, is based upon two factors: the rate of flow(annual average daily) produced by the sewered customers and the staging of construction or expansion. 20-year planning It is recommended that wastewater treatment plants be capacity with a 20% designed for a 20-year period and to have a projected 20- - design flow margin of year design capacity that is 20 percent greater than the safety identified for projected flow at the end of the 20-year period. This 20 planning purpose& percent capacity can be identified for 30-day maximum month or annual average. Local population projections used to generate wastewater flow projections should be documented and differences between regional projections and local projections explained. Odor control considerations Odor control should be considered an important component of the system design and alternative selection process. The utility plan should include any odor control studies, strategies or abatement programs. Some wastewater treatment facilities are required to meet odor control regulations. 29 Air quality permittinq requirements Some wastewater treatment plants are identified as stationary sources. Consequently, wastewater treatment plants with a design capacity of 10 million gallons per day or greater may require an air quality permit. The Water Quality Control Division should be contacted for air quality permitting requirements. The utility plan should identify any air quality permitting requirements. ^ Stormwater management plan Some wastewater treatment plants may be required to prepare a stormwater management plan as part of the stormwater permitting requirements. The Water Quality Control Division should be contacted for stormwater permitting requirements. The utility plan should include the approved stormwater management plan, if applicable. Site characterization requirements The site approval process for new wastewater treatment works and new lift stations requires evidence of the suitability of the site. The site must be characterized in relation to floodplains and other natural hazards. Specifically, the utility plan must identify flood hazard issues and geological suitability issues related to the proposed site (or site envelope) and the measures to be taken to mitigate any identified problems or risks. For all new sites, a soil testing report should be attached to the utility plan. Collection system Interceptor The utility plan must list lines in the systems that qualify as interceptors. The definition of an interceptor in the Regulations for the Site Application Process (WQCC regulation #22) is: ❑. . . a sewer line will be considered as an interceptor sewer if it has an internal pipe diameter equal to or greater than 24 inches and it meets one or more of the following criteria: (a) it intercepts domestic wastewater from a final point in a collection system and conveys such waste directly to a treatment plant, the interceptor sewer may also collect wastes from a limited number(fewer than 5 connections per mile of sewer) of building services and sewer laterals along its route to the wastewater treatment plant (b)it serves in place of a treatment plant and transports the collected domestic wastes to an adjoining collection system or interceptor sewer for treatment; (c) it transports the domestic wastes from one or more municipal collection 30 systems to another municipality or to a regional treatment plant; (d) it intercepts an existing major discharge of raw or inadequately treated wastewater for transport to another interceptor or to a treatment plant. Regulation No. 22 provides special procedures for review of interceptors. Ninety days prior to the The utility plan wilt construction of an interceptor line, the responsible entity contain maps of all will notify NFRWQPA and the WQCD. This notification qualifying interceptors,' including location of will include a certification that the treatment facility has existing and planned the capacity to treat the projected flow from the interceptors to serve interceptor. NFRWQPA is required to certify within 30 WUSAs or ultimate days that the interceptor line has the capacity to carry the planning area. projected flow. If these certifications cannot be provided, the entity must apply for a site application. 4. The 208 Plan does not provide flow projections for interceptors. Projections for major lines are developed by the NFRWQPA and the applicant on a case-by-case basis for use in this certification process. Major lift stations While the utility plan needs to site all major The minimal recommended mapping of major lift lift stations on required stations should include those systems that have an planning maps, average pumping capacity which is 1/5 or greater of wastewater service providers are the existing treatment works capacity (for example, a encouraged to site all 100,000 gallon per day treatment facility will list all lift lift stations. stations at or greater than 20,000 gallons per day) or any lift station over 0.5 million gallons per day. Wastewater providers are encouraged to look at all lift stations as part of the planning process. Water quality characterization Water quality limited receiving water ^ Is the receiving For all treatment facilities, the utility plan should identify whether water quality the receiving waterbody (or any downstream waterbody affected limited? by the discharge) is currently water quality limited. This applies to all constituents discharged or to be discharged by the facility. Additionally, if there is a potential for water quality limited segment within a 10 year period, based on the current 305(b) report, modeling, or other water quality data, this should be included in the utility plan. If the discharge quality is/will be controlled by a water quality limited waterbody, then an identification of the constituent(s) of concern and source identification of water quality limited designation (e.g., 303(d) list, 305(b) report or watershed association 31 planning and implementation effort) needs to be included in the utility plan. The utility plan must identify any wasteload allocation (concentration, poundage and/or other alternatives) by constituent(s) as they apply to the treatment plant. Therefore, the utility plan should contain: - - ❑ For treatment plants that will not be built or expanded for 10 or more years, a general discussion of the constituents to be controlled and the availability of allocations for the waterbody are sufficient. Exact concentration or poundage estimates are not necessary unless there is a conflict with an existing total maximum daily load (TMDL) or wasteload allocation (WLA). ❑ For wastewater treatment plants to be built or expanded within the next 10 years, a recommended treatment technology and treatment plant configuration to meet the projected discharge permit limitations and a listing of alternative technologies for consideration. The utility plan must provide documentation that achieving the projected effluent limitations is technically and economically feasible. Level of treatment for new and expanding facilities The utility plan shall list the effluent discharge quality necessary to meet receiving water quality classifications and standards, including: If available, provide ❑ a list of projected discharge permit limitations based on the recommended state effluent standards (copy of letter from Water effluent discharge Quality Control Division), receiving water classifications quality- - and established water quality standards; o discharge quality necessary to meet any total maximum daily loads or wasteload allocations as listed or recognized in the 208 Plan for time horizon identified in the plan; and o other effluent limits recommended in the 208 Plan and/or necessary to meet state requirements. TMDLs and wasteload allocations Utility plans should document any approved or proposed total maximum daily load studies or wasteload allocations. The receiving waters need to be checked against the Water Quality Control Division's 303(d) List and the 305(b) Report. Wasteload allocation requirements can affect effluent limits and treatment options. Watershed issues Utility plans should document any watershed programs and implementation strategies. Since the watershed protection approach is advocated in the 208 Plan, the utility plan 32 will need to address how a wastewater management plan fits into the watershed program. Minimum mapping requirements Mapping requirements may differ between minor and major wastewater utility plans. Both electronic (Autocad) and hard copy maps will be acceptable for NFRWQPA review. They must be of a large enough scale and clear enough to adequately illustrate the necessary features. The minimum features to be included on maps include, but are not limited to, drainage basin and watershed, service area (WUSA and Ultimate planning areas), treatment plant or treatment works, lift stations, interceptors, water features (stream segments, lakes, reservoirs), discharge point, water well fields, sanitary sewer tributary areas (if available) and local comprehensive plan features. Mapped features should be consistent with the site approval regulations. U.S. Geological Survey topographic maps at the 1:24,000 scale may be used for mapping most features, if AutoCad is not available. The wastewater utility service area map must show the WUSAs and, if desired, the Ultimate planning area (or more than one plant operated as a coordinated system, e.g. satellite plants). For WUSA and ultimate planning areas, the utility plan maps should identify areas to be served by gravity sewers and identify those areas served through one or more major lift stations. Adjacent WUSAs and UPAs should be mapped to insure that there are no overlapping areas. Alternatives analysis For proposed or new wastewater treatment works, the utility plan needs to provide alternatives analysis. The alternatives analysis should address the potential for consolidation with other existing treatment works. The utility plan needs to list the criteria used to select a preferred alternative. Additionally, the selection of a preferred alternative should have a public review and comment component. Any consolidation analysis must be consistent with the Water Quality Control Division policy on consolidation in Appendix B. Management and financial plans Management structure and agreements The utility plan must identify the management agency, associated The utility plan watershed association, if applicable, and operating must identity agency(ies),along with applicable management agency management agreements or other memorandums of understanding. Utility agency and plans should include maps of collection and other associated applicable agreements. 33 special districts. Key contact(s) with the management agency will need to be listed in the utility plan. The utility plan should also reference special control regulations or other water quality regulations specific to utility service area or Ultimate planning area. The utility plan may need to list any special rules or regulations applicable to the service area, along with external service contracts and other operational or management agreements. Financial considerations Capital costs should be estimated for all new wastewater treatment plants, treatment plant expansions, new lift stations, lift stations expansions, and interceptors which will be built within the next 5 years. Changes in operating costs and total expenditures necessary to carry out the wastewater system improvements planned within the next 5 years should be estimated with a discussion of the sources of revenue necessary to meet those expenditures for: ❑ new wastewater treatment agencies; Estimate S-year capital costs and a any wastewater treatment facility that is in repeated summarize sources of revenue. noncompliance with significant permit requirements; and ❑ treatment agencies expecting to increase the volume of wastewater treated by more than 100 percent in the following 10 years. Wastewater treatment agencies need a financial management plan, which addresses, at the minimum, the following items: ❑ rate and charge structures; - ❑ financial solvency should project growth not occur, ❑ institutional arrangements to guarantee payment of charges from large connectors (over 10 percent of the projected revenue) and from other governmental connectors; ❑ interest in applying for a state revolving loan to finance any infrastructure or improvements; ❑ significant industrial user(s) under pretreatment regulations, arrangements for meeting pretreatment responsibilities; and a industrial or commercial sewer connections with the potential to overload the treatment plant hydraulically or with organic loading, a description of the methods for controlling rates of flow to the treatment facility. 34 Interest in revolving loan The utility plan should identify any interest by the management agency in applying for a revolving loan with the Colorado Water and Power Authority. Those utility plans showing an interest in a loan will be recommended to the Water Quality Control Division for inclusion on the State's revolving loan eligibility list. Those utility plans showing an interest in a loan should include a user charge study. A financial plan is required if any type of payback system (loan, bonds, etc.) is utilized for existing or new customers. A developer may be required to provide financing information, evidence of ability to finance, or similar information. r- • 35 r- VI. UTILITY PLAN FORMAT CHECKLIST Suggested outline and checklist Chapter Includes Executive Summary I Introduction Background Facilities Plan Summary Implementation Summary of Utility Plan Structure II General Planning Feasibility of Consolidation of Facilities Reg.22 (dj 22.8 (1) (b) Wastewater Reuse Environmental Components Environmental (NEPA) Information III Wastewater Service Area Designations Characterization Population Datasets & Forecasts Wastewater Flow Projections Infiltration & Inflow Analysis Character of Influent Industrial Pretreatment Program Treatment Works Process System Infrastructure Sizing And Staging Location & Siting Biosolids Handling Schematic of Treatment Works Odor Control Considerations Air Quality Permit Stormwater Management Plan Site Characterization Report Collection system Major Lift Stations Interceptors Maps Treatment Plant Site Envelope Service Areas Collection system IV Water Quality Water Quality of Receiving Water Characterization TMDLs and/or Wasteload Allocations Watershed Issues Level of Treatment (Existing Permit Limits or Projected) Maps Watershed and Receiving Waters Impaired Waters 36 Chapter Includes Treatment Works V. Alternative Level of Treatment Analysis Public Participation in Selection Process V. Management and Management Structure And Agreements Financial Plans Wastewater Management Plan Financial Management Plan Revolving Loan Interest (Other application documents are required if a facility applies for loan, which do not need to be part of the utility plan) User Charge Summary VI. References Reports And Special Studies VII. Technical Legal Description and Evidence of Site Ownership Support Appendices Agency Contacts(Cover Letters) Special Surveys (e.g., Endangered Species) NEPA process Site Characterization Report Soil Test Results Preliminary Effluent Limits(New Treatment Works) Effluent Limits(Existing Wastewater Treatment Works) Planning and Zoning Information (e.g., Portion of Local Comprehensive Plan) ^ Intergovernmental Agreements User Charge Study Analysis Air Quality Permit Odor Control Studies or Plans ^ Stormwater Management Plan Summary of Public Hearings and Process Infiltration and Inflow Study 37 Distribution and number of copies Copies of all final or interim utility plans, with associated maps, will be provided to NFRWQPA for distribution. The number of copies varies, depending on the utility plan area. Generally, the minimum distribution of copies will follow Table 4. Table 4 Minimum distribution of copies Agency Number of Copies NFRWQPA 2 (1 review and 1 permanent file copy) WQCD 4 NFRWQPA Review Team 3 Other Sign-off Agencies 4 Adjacent Cities, Towns or Counties 2 (varies) Watershed Association (if applicable) 1 Total 16 Aa .. 38 VII. RECOMMENDED UTILITY PLAN ACCEPTANCE POLICY General criteria Accepted and conditionally accepted utility plans will Only accepted and be referenced in the 208 Plan and these plans will conditionally accepted utility represent the preferred wastewater management plans will be referenced in strategy for the wastewater utility service area and the the 208 Plan. , Ultimate planning area. Accepted and conditionally accepted utility plans will be used in the site approval process, as 208 Plan amendments, and to meet other appropriate regulatory ,1 requirements. Utility plans or a set of utility plan documents can be submitted to NFRWQPA at any regular meeting after review by the appropriate management agency. Utility plans submitted to NFRWQPA should address any locally adopted watershed objectives and wastewater management strategies. Formal action by a management agency is required before submittal of a utility plan to NFRWQPA. NFRWQPA will take formal action on presented documents within a maximum three- . month period. NFRWQPA can make one of the following three recommendations related to utility plan acceptance: ❑ accept; ❑ conditionally accept with the conditions listed; or ❑ refer back to the utility plan submitting agency and/or the designated management agency for additional actions, analyses or information. A NFRWQPA utility plan review team will be established from members and alternates. The review team will have a maximum of five participants per utility plan. Participation on the review team will be confirmed by NFRWQPA action. Review team membership can be altered as needed to facilitate reviews. The review team will have a rotating membership with service for two years. In alternate years, two or three new members will be appointed. The review team will check the utility plan or set of utility plans for consistency with adopted policy and minimum requirements. The review team will summarize findings for NFRWQPA at a regularly scheduled meeting. The planning agency will distribute copies of the utility plan or set of utility plans to those jurisdictions who will be required to sign the wastewater utility plan acceptance form that will be kept on file at NFRWQPA. These signature entities will also be requested to comment, if appropriate, at the same NFRWQPA meeting that the review team summarizes their findings. 39 Renewal frequency The preferred review and acceptance frequency for Maximum time wastewater utility plans is five years after the initial between reviews acceptance by NFRWQPA. Although this time frame is 10 years,while corresponds to the permit renewal period, review does not the preferred necessarily need to coincide with permit renewal. The review interval is five-years. recommended maximum time between reviews by NFRWQPA is 10 years. A utility plan that has not been reviewed within 10 years will be flagged as such in the 208 Plan and will not be used in the site approval process. My significant revision and re-adoption of a local comprehensive plan or other local long-range wastewater management plan will also require a review and re-acceptance of the associated wastewater utility plan. Management agencies shall notify NFRWQPA of any re-adoption or significant update of their local comprehensive plan. Acceptance procedure The following procedure will apply to the NFRWQPA review and acceptance of utility plans. .. ❑ Utility plan delivered to NFRWQPA ❑ As appropriate NFRWQPA staff distributes review copies to team members and other sign-off agencies. ❑ Meeting scheduled within 60 days of distribution to review interim or final utility plan with review team members, the submitter of the utility plan, and other interested agencies. Other interested agencies will be requested to identify any issues or concerns prior to this review meeting (generally a 30-day response time). ❑ At the review meeting, the review team will mark-off a checklist of minimum requirements, assure that there are no overlapping service areas, review assumptions and provide any appropriate comments. ❑ Based on the review team comments and comments from other interested agencies, NFRWQPA staff will prepare a written response and recommendation for inclusion in the following NFRWQPA meeting agenda. a NFRWQPA and other appropriate agencies acknowledge acceptance, conditional acceptance or refer back the utility plan at the NFRWQPA meeting. Based on the action, the appropriate sign off forms will be filled out following the meeting. 40 VIII. REFERENCES North Front Range Water Quality Planning Association -Areawide Water Quality Management Plan Update- 1989, 1991, 1993, 1996, 1999. Larimer-Weld Regional Council of Governments -Areawide Water Quality Management Plan Update- 1985. 4.1 44.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 41 IX. APPENDICES Appendix A- Regulations for the Site Approval Process Appendix B-Water Quality Control Division Consolidation Policy 42 Hello