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Grover Project Area : Volume
Weld County
14144
Prepared for:
Petro-Canada Resources (USA) Inc.
999 18th Street, Suite 600
* Denver, Co 80202
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Prepared by:
LESAIR Environmental, Inc.
10394 W. Chatfield Ave., Ste 100
Littleton. Co 80127
2010-0112 March 2009
• TABLE OF CONTENTS
1.0 PURPOSE 1
2.0 GENERAL PERMIT APPLICATION 1
3.0 SITE DESCRIPTION 1
4.0 SITE MAP 3
5.0 STORMWATER MANAGEMENT CONTROL 3
5.1 IDENTIFICATION OF POTENTIAL POLLUTANT SOURCES 3
5.2 BEST MANAGEMENT PRACTICES(BMPs) 4
5.2.1 Erosion and Sediment Controls 4
5.2.2 Materials Handling and Spill Prevention 6
5.2.3 Vehicle Tracking Control 6
5.2.4 Other Controls 6
5.2.5 Post-Construction Controls 6
5.2.6 Inspection and Maintenance 7
6.0 INACTIVATION NOTICE 8
7.0 PLAN RETENTION 8
8.0 SIGNATURE 9
• LIST OF APPENDICES
Appendix A NPDES Permit No. C0R 030000
Appendix B Regional Storm Water Construction Applications
Appendix C Forms
Appendix D Grover Project Area Field Maps
Appendix E Best Management Practices (BMPs)
LIST OF ACRONYMS
BMPs Best Management Practices
CWA Clean Water Act
DEQ Department of Environmental Quality
EIS Environmental Impact Statement
NPDES National Pollutant Discharge Elimination System
ROW Right of Way
SWMP Storm Water Management Plan
WQCD Water Quality Control Division
The official Stormwater Management Plan is an electronic rile maintained by Petro Canada.While efforts are
made to ensure this document contains all changes and revisions, the information contained in the official
• plan overrules any differences found in this copy.
03/2009
• IDENTIFICATION OF THE SWMP ADMINISTRATOR
The person identified below "is responsible for developing, implementing, maintaining, and
revising the SWMP. The activities and responsibilities of the administrator shall address all
aspects of the facility's SWMP."
DATE NAME TITLE
3/4/2009 Hal Koerner Vice President of Engineering and Operations
SWMP HISTORY
DATE VERSION DESCRIPTION
03/2009 Original SWMP prepared according to specifications set forth under General
Permit No. COR-030000 effective immediately and expires June 30,
2012
•
SWMP NOTEBOOK LOCATIONS
COPY LOCATION CONTACT
1 Denver Office Rick Eggleston
2 LaSalle Office Todd Cullum
3 Lesair Office Ty Smith
•
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Petro-Canada Resources(USA),Inc.
Storm Water Management Plan
Grover Project Area
• 1.0 PURPOSE
Any operator of a construction activity, as defined under the Construction Stormwater Discharge
Permit COR-030000, must prepare a Storm Water Management Plan (SWMP) and implement
the provisions of their SWMP as a condition of this permit. A SWMP describes the measures to
be implemented at the construction site that will eliminate or minimize pollutants from the
project. The primary objective of the plan is to identify Best Management Practices (BMPs),
which when implemented, will meet the terms and conditions of this permit and protect the
waters of Colorado from storm water pollution.
This SWMP represents Petro-Canada Resources (USA) Inc. (Petro-Canada) standard field-wide
plan for compliance with Federal Clean Water Act(CWA), Colorado Environmental Quality Act
and NPDES regulations found in 40 CFR, Part 122.26 for storm water discharges. Any new
construction sites by Petro-Canada, or its subsidiaries, in the Grover Project Area must be
included in this SWMP. This plan will be reviewed at least annually. A copy of permit COR-
030000 is included in Appendix A of this Plan.
2.0 GENERAL PERMIT APPLICATION
In addition to the preparation of this SWMP, Petro-Canada has prepared and submitted a field-
wide General Permit Application for Construction Activity. The applications were submitted to
the Colorado Water Quality Control Division. The submittal included a completed copy of the
• application form located in Appendix B, as well as a list of the following information for each
new construction site:
• Name of the construction site;
• Description of legal location;
• The total area anticipated to be disturbed(acres)during construction; and
• The nearest defined drainage which could receive runoff from the construction project.
3.0 SITE DESCRIPTION
The Grover Project Area is located around Grover in Weld County, Colorado. The area consists
primarily of field land, which is used for agriculture. Vegetation consists of either indigenous
grasses and scrub brush or cropland.
The following is an overview of the basic types of construction sites and the sequence of major
activities associated with that type of site in the Grover Project Area. However, in most cases,
specific requirements for each site are contained in the surface-use agreement negotiated with the
surface owner or the Federal Land Manager.
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• a. Construction of the well pads:
• The well pad will be constructed as small as possible to minimize soil and surface
disturbance.
• The topsoil will be removed from the site in lifts and placed at the edge of the location for
reuse.
• The pad will be excavated and/or filled to grade. The excavated soil material will be
stockpiled.
• The pit may be excavated and the spoil material will be stored on the edge of the site.
• Slopes will be minimized to lessen erosion rates.
• Wetlands, ground water, and flood plains will be avoided whenever possible.
• Fuels that may be stored on-site will be diked to prevent potential run-off in the event of
a spill.
• Trenches are dug around the various pieces of stationary equipment during the drilling of
the well to collect spills and wash water.
• Absorbents, drop liners and catch pans will be used to collect spills and drips.
• Well pads will be stabilized as soon as practical after construction.
b. Construction of the roads:
• Disturbance of new areas should be avoided whenever possible. Whenever possible,
existing roads will be utilized or expanded to minimize the amount of surface
• disturbance.
• Typically, roads will follow ridgelines to minimize road grades whenever possible.
• If the road is permanent, the road will be built using crown and ditch construction. Water
bars, wing ditches, drainage dips, and culverts are commonly used in roadways and ROW
to minimize surface erosion.
• After the road is built, the topsoil will be spread on the road cut slopes and seeded.
• Stream crossings will be avoided when possible. Existing crossings or bridges will be
used.
• Vehicles will be confined to authorized traffic routes.
• Areas disturbed, as a result of road construction, will be stabilized as soon as practical
after construction.
c. Construction of pipelines/flowlines:
• The pipeline/flowline may be constructed in the roadbed ROW or occasionally the
pipline may be across the field.
• A trench will be excavated, as required, to accommodate the pipeline.
• A rock shield, where needed, will be placed around the pipeline.
• The trench will be backfilled.
• Final"tie-ins"will be completed.
• The tie-in area will be backfilled.
• Recontouring will take place on the ROW, implementing erosion and sediment controls
prescribed by the surface owner/manager.The ROW area will be re-seeded.
• Water bars, wing ditches, and drainage dips are commonly used in ROW to minimize
• surface erosion.
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• d. Site Description Form:
• Blank site-specific data forms are included in Appendix C of this plan. This form is to be
completed for each new construction site. The following information is recorded on the
site description form:
o Estimated area of disturbance/area of the site
o Estimate for the runoff coefficient before and after construction (Appendix C)
o Description of existing vegetation (indigenous or cropland) and estimate
vegetative cover if indigenous.
o Name of receiving waters and size, type and location of any outfall
o Location and description of any anticipated non-storm water components of
discharge, such as springs and landscape irrigation return flow
o Best management practices used and during which phase of construction i.e.
wells, roads or pipeline
The completed forms for active sites will be maintained in Volume 11 of this Plan, until final
stabilization has been established.
4.0 SITE MAP
A large-scale field-wide map of the entire range of Petro-Canada's holdings in the Grover
Project Area is included in Appendix D. It identifies the boundaries of the Grover Project Area,
• the location of surface waters, and the regional topography.
Individual location maps of each site are included in Volume 11 of this plan to provide more site-
specific detail regarding surface waters and topography. In addition to these topographic maps, a
site drawing is included in Volume 11 for each of the active construction sites and will remain
there until inactivation has been approved. These site drawings indicate construction site
boundaries, site grade, areas of disturbed soil, location of major erosion control facilities or
structures and the storage locations for fuel and other hazardous materials.
5.0 STORMWATER MANAGEMENT CONTROL
5.1 Identification of Potential Pollutant Sources
Pollutants that have the ability to impact storm water during the construction of the facility
include: produced water storage, petroleum products, and fluids/chemicals from completion,
workover and/or drilling activities. Water storage is kept in above ground water storage tanks
located on the drill pad. All petroleum products are also stored in above ground storage tanks
or 55 gallon drums. Fluids/chemicals are stored in temporary above ground storage tanks or
55 gallon drums located on the drill pad during construction.
Inspections will be made in accordance with the Minimum Inspection Schedule as stated in
the General Permit. These inspections will evaluate any incidents or suspicions regarding the
potential for pollutants to contribute to storm water runoff.
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Grover Project Area
• 5.2 Best Management Practices (BMPs)
A key component of this SWMP is employing Best Management Practices (BMPs) to
improve storm water quality. Local factors will be evaluated to determine what BMPs are
suitable and practical for each construction project. Site specific data forms included in
Appendix C of this plan describe the relationship between the phases of construction and the
implementation and maintenance of controls and measures.
The following is an overview of common BMPs, which Petro-Canada employs during
construction activities. Selection criteria, descriptions, design parameters, and maintenance
information for these BMPs are located in Appendix E.
5.2.1 Erosion and Sediment Controls
The primary methods of soil control consist of minimizing on-site disturbance of the soil
and groundcover and providing measures to retain sediment on-site if erosion should
occur. In order to accomplish such goals, two different types of BMPs may be utilized:
non-structural and structural BMPs. The following is a brief description of these two
types of erosion and sediment control.
5.2.1.1 Non-Structural Practices
• Nonstructural BMP's are intended to reduce the generation and accumulation of
pollutants, including sediment, on impervious surfaces through planning, design,
management and education. By far, the most effective method to reduce the sediment
lost from a tract of land is to prevent the occurrence of erosion. While structural
barriers such as those shown in this plan may provide 70 to 90% removal of sediment
from run off, natural groundcover and mulching can provide up to 98% reduction in
erosion and site soil loss. Therefore, the primary goals of the SWMP for a
construction site is to protect the soil from erosion and minimize the area of
disturbance through the phasing of construction activities, mulching of inactive
disturbed areas, and providing traps, seeding or hydromulching of stockpiles. These
techniques are not only the most effective at reducing soil loss, they are normally the
most cost effective due to low initial cost and reduced maintenance requirements.
Non-structural BMPs include:
• Preventive Maintenance of pipes, pumps, storage tanks, and storm water
management devices ensure equipment and structures are in good condition and
will not pollute storm water. This includes replacing worn gaskets and valves
before leaks occur and removing trash and residue from overflowing containers
and receptacles.
• Routine Inspections ensure equipment, machinery, vehicles, and storage tanks are
not leaking. Petro-Canada contract personnel perform routine visual inspections
of the sites in the Grover Project Area.
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• • Spill Response Planning — Petro-Canada has established spill prevention and
cleanup procedures, which are detailed in the site-specific Spill Prevention
Control and Countermeasure (SPCC) Plans.
• Erosion Control Measures — Petro-Canada will employ non-structural sediment
and erosion control practices in areas where soil has been disturbed, when
appropriate. Selection of non-structural sediment and erosion control practices
will be determined on a site-specific basis, and will be noted on the site
description forms included in Appendix C of this plan. Guidelines for non-
structural erosion control measures, such as vegetation, mulching, and erosion
control mats are described in Appendix E.
5.2.1.2 Structural Practices
Structural controls are the second line of defense, treating sediment-laden storm water
prior to it leaving the site. Structural BMPs are used to delay, capture, store, treat, or
infiltrate storm water runoff. It should be noted that Petro-Canada does not consider
structural BMPs a substitute for good planning. In many cases, good planning and
site design are more effective than structural BMPs at mitigating storm water impacts.
Guidelines for the use of several typical methods of structural controls are presented
in Appendix E of this plan.
Structural BMPs include:
• • Retention Structures are pond-like storm water control structures that act like
natural ponds by slowing the flow of water and storing storm water behind an
embankment. These pond-like structures allow heavier suspended matter to settle
out of the storm water before it is discharged into a storm drain or stream.
• Infiltration Structures catch storm water and help it filter into the ground. These
devices may include manmade materials like filter fabric, perforated pipes, and
natural elements like certain types of soil, gravel, and sand to physically remove
pollutants from storm water. Unlike retention structures that store and release
storm water to surface water bodies, infiltration structures direct the flow of storm
water into channels and other designated areas that permit storm water to
gradually soak deeper into the ground. Local conditions are considered when
designing an infiltration structure to ensure pollutants are not reintroduced to
ground water or surface waters.
• Vegetative Structures rely on natural plantings and vegetation to remove
pollutants such as suspended matter, undissolved metals, and bacteria from storm
water. Because some plants can readily absorb certain pollutants (without plant
risk), they are used to remove pollutants from storm water. Grassed swales and
filter strips are two types of storm water control structures that rely on plants and
the ground surface to remove and filter pollutants from storm water.
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• 5.2.2 Materials Handling and Spill Prevention
Paints, solvents, fuel, oil, pesticides, and fertilizer may be stored on-site. In addition,
chemicals associated with the rig and drilling may also be on site. Materials of these
types will be properly labeled and stored in temporary enclosures or berm areas to avoid
contact with storm water. Petro-Canada personnel are trained in spill response
procedures, established in the site-specific SPCC Plans.
if a spill should occur, Petro-Canada will employ procedures to contain and remediate oil
and/or chemical spills. In addition, Petro-Canada will prevent storm water from flowing
across a contaminated solid and contain this area to prevent contaminated storm water
from leaving an affected site. If a spill cannot be cleaned up immediately Petro-Canada
will initiate appropriate BMPs to prevent storm water runoff.
5.2.3 Vehicle Tracking Control
Where vehicle tracking control is needed it will consist of a crushed rock pad at all
necessary entrance/exit points for the site. It is intended to help strip mud from tires prior
to vehicles leaving the construction site. This will help reduce sediment tracking onto the
main road. At locations where vehicle tracking pads exist inspections will be performed
in accordance with the Minimum Inspection Schedule as stated in the General Permit.
• 5.2.4 Other Controls
In the event that sediment is transported off the construction site, it will be collected and
returned to the site and placed on the stockpile or spread over the pad area and
compacted. If a minimal quantity moves off-site, it will be spread/raked out to ensure
there is no negative effect on natural vegetation. In some cases Petro-Canada may also
put gravel down to prevent off site contamination. Petro-Canada also implements waste
BMPs when appropriate at its construction sites. These techniques are discussed in more
detail in Section 4.0 of Appendix E.
5.2.5 Post-Construction Controls
All disturbed areas with indigenous preconstruction vegetation will be re-seeded as
recommended by the surface owner/manager or the Natural Resources Conservation
Service. Seed may be planted using a drill. In areas not suitable for drilling, the seed
will be broadcasted and raked or chained to cover the seed. Re-seeding will begin as
soon as practical.
If designated preconstruction land use is agricultural once construction is completed the
land will be returned to the owner, whereas the owner will be responsible for re-seeding.
Therefore once Petro-Canada releases agricultural land back to owner for the purposes of
this plan the site is considered fully stabilized and as such an inactive site.
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Grover Project Area
• 5.2.6 Inspection and Maintenance
Petro-Canada will be responsible for inspections for all disturbed areas with indigenous
preconstruction vegetation. Sites where the designated land use is agricultural requires
only active construction site inspections. Therefore Petro-Canada is not responsible to do
inspections once these sites are returned to the owner upon commencement of
construction.
Inspections. Construction site inspections will be performed in accordance with Part
I.D.6 of the permit, and will occur on the following schedule:
Active Construction Sites: For sites where construction has not been completed, the
permittee shall make a thorough inspection of their stormwater management system
at least every 14 days and within 24 hours after any storm event.
Temporarily Idle Sites: If no construction activities are planned to occur during the 48
hours following a storm event, post-storm event inspections shall be conducted prior
to commencing construction activities, but no later than 72 hours following the storm
event.
Completed Construction Sites: For sites where all construction activities are
complete but final stabilization has not been achieved due to a vegetative cover that
• has been planted but has not become established or the application of seed has yet to
take place because of seasonal conditions, the permittee shall make a thorough
inspection of their stormwater management system at least once every month.
Instructions and blank inspection forms are included in Appendix C of this plan. An
inspection report will be prepared and signed by the individual conducting the inspection.
If the report identifies deficiencies in pollution control structures or procedures, they will
be corrected as soon as feasible. Completed forms for each facility are maintained in the
respective Region of this plan, until inactivation has been approved by WQCD.
Maintenance. In addition to the regular inspections described above, the new
construction areas will be patrolled and inspected by contract personnel during routine
visits. At that time, they may be examined for problems, such as erosion, right of way
condition, unauthorized encroachment on the right of way, and any other situations that
could cause a safety or environmental hazard, or require preventive maintenance on these
areas.
Documentation. When a well pad, section of road or section or right of way has been
stabilized to 70% of original vegetation Petro-Canada will provide documentation to be
maintained in this SWMP and inspections no longer need to be performed.
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Grover Project Area
•
6.0 INACTIVATION NOTICE
Petro-Canada will keep a list of individual well sites that have reached "final stabilization" in
Volume 11 of this SWMP and inform the CDPHE of these sites if necessary.
When all disturbed areas associated with this permit have reached "final stabilization" so that the
slopes and vegetation approximate preconstruction conditions, this field area no longer requires
coverage under this permit. Petro-Canada will submit an Inactivation Notice that closes this
permit to the WQCD upon final stabilization. A blank copy of this form is included in Appendix
C of this plan.
Upon receipt of the Inactivation Notice, the WQCD will provide written confirmation that
coverage under this permit has been terminated. This historical documentation will be
maintained in the inactive site section Volume II of this SWMP for up to three(3) years.
7.0 PLAN RETENTION
A copy of the SWMP and inspection records will be retained at the Petro-Canada field office.
Inspection records and site-specific information will be retained for three (3) years after
termination.
•
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Storm Water Management Pun
Grover Project Area
•
8.0 SIGNATURE
"1 certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gathered and evaluated the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the
information, the information is submitted, to the best of knowledge and belief, true, accurate, and
complete. l am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment or knowing violations."
Hal Koerner Vice President of Engineering&Operations
Printed Name Title
Signature Date
•
• 9
03/2009
TABLE OF CONTENTS
• PART I
A. COVERAGE UNDER THIS PERMIT 3
I. Authority to Discharge 3
a) Applicable Sections 3
b) Oil and Gas Construction 3
2. Definitions 3
3. Permit Coverage Without Application—Qualifying Local Programs 3
a) Applicable Sections 3
b) Local Agency Authority 4
c) Permit Coverage Termination 4
d) Compliance with Qualifying Local Program 4
e) Full Permit Applicability 4
4. Application,Due Dates 4
a) Application Due Dates 4
b) Summary of Application 4
5. Permit Certification Procedures 4
a) Request for Additional Information 5
b) Automatic Coverage 5
c) Individual Permit Required 5
d) General vs. Individual Permit Coverage 5
e) Local Agency Authority 5
6. Inactivation Notice 5
7. Transfer of Permit 5
8. Reassignment of Permit 6
9. Sale of Residence to Homeowners 6
10. Permit Expiration Date 6
• I1. Individual Permit Criteria 6
B. STORM WATER MANAGEMENT PLAN—GENERAL REQUIREMENTS 7
C. STORM WATER MANAGEMENT PLAN-CONTENTS 7
1. Site Description 7
2. Site Map 7
3. Stormwater Management Controls 8
a) SWMP Administrator 8
b) Identification of Potential Pollutant Sources 8
c) Best Management Practices(BMPs)for Stormwater Pollution Prevention. 8
4. Final Stabilization and Longterm Stormwater Management 9
5. Inspection and Maintenance 10
D. TERMS AND CONDITIONS 10
I. General Limitations 10
2. BMP Implementation and Design Standards 10
3. Prohibition of Non-Stormwater Discharges 10
4. Releases in Excess of Reportable Quantities I I
5. SWMP Requirements 11
a) SWMP Preparation and Implementation 11
b) SWMP Retention Requirements 11
c) SWMP Review/Changes 11
6. Inspections 11
a) Minimum Inspection Schedule 11
b) Inspection Requirements 12
c) Required Actions Following Site Inspections 13
7. BMP Maintenance 13
• 8. Replacement and Failed BMPs 13
9. Reporting 13
-2a•
TABLE OF CONTENTS(cont.)
• 10. SWMP Availability 13
11. Total Maximum Daily Load(TMDL) 13
E. ADDITIONAL DEFINITIONS 14
F. GENERAL REQUIREMENTS 15
1. Signatory Requirements 15
2. Retention of Records 15
3. Monitoring 16
PART II
A. MANAGEMENT REQUIREMENTS 16
L Amending a Permit Certification 16
2. Special Notifications-Definitions 16
3. Noncompliance Notification 16
4. Submission of incorrect or Incomplete Information 17
5. Bypass 17
6. Upsets 17
7. Removed Substances 18
8. Minimization of Adverse impact 18
9. Reduction,Loss,or Failure of Stormwater Controls 18
10. Proper Operation and Maintenance 18
B. RESPONSIBILITIES 18
1. Inspections and Right to Entry 18
2. Duty to Provide Information 19
• 3. Transfer of Ownership or Control 19
4. Modification,Suspension,or Revocation of Permit By Division 19
5. Permit Violations 20
6. Legal Responsibilities 20
7. Severability 20
8. Renewal Application 20
9. Confidentiality 21
10. Fees 21
11. Requiring an Individual COPS Permit 21
• -2b-
• Page 2 of 19
Permit No. COR-030000
CDPS GENERAL PERMIT
STORMWATER DISCHARGES ASSOCIATED WITH
CONSTRUCTION ACTIVITY
AUTHORIZATION TO DISCHARGE UNDER THE
COLORADO DISCHARGE PERMIT SYSTEM
In compliance with the provisions of the Colorado Water Quality Control Act, (25-8-101 et seq., CRS,
1973 as amended) and the Federal Water Pollution Control Act, as amended (33 U.S.C. 1251 et seq.; the
"Act"), this permit authorizes the discharge of stormwater associated with construction activities certified
under this permit, from those locations specified throughout the State of Colorado to specified waters of
the State. Such discharges shall be in accordance with the conditions of this permit.
This permit specifically authorizes the facility listed on page 1 of this permit to discharge stormwater
associated with construction activity, as of this date, in accordance with permit requirements and
• conditions set forth in Parts 1 and 11 hereof. All discharges authorized herein shall be consistent with the
terms and conditions of this permit.
This permit and the authorization to discharge shall expire at midnight, June 30,2012.
Issued and Signed this day of
COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
Janet S. Kieler
Permits Section Manager
Water Quality Control Division
•
PART I
Page 3
•
Permit No.COR-030000
PART I
A. COVERAGE UNDER THIS PERMIT
1. Authority to Discharge
Under this permit,facilities are granted authorization to discharge stormwater associated with construction activities into
waters of the state of Colorado.This permit may authorize all new and existing discharges of stormwater associated with
construction activity. This includes stormwater discharges from areas that are dedicated to producing earthen materials,
such as soils,sand and gravel,for use at a single construction site(i.e.,borrow or fill areas). This permit also authorizes
stormwater discharges from dedicated asphalt batch plants and dedicated concrete batch plants. (Coverage under the
construction site permit is not required for batch plants if they have alternate CDPS permit coverage.) This permit does
not authorize the discharge of mine water or process water from such areas.
a) Applicable Sections: [his permit is made up of several parts,not all of which apply to all permittees. The
permittee will be responsible for determining and then complying with the applicable sections,depending upon
whether or not a Qualifying Local Program covers the site. For sites not covered by a Qualifying Local Program,
all Parts of the permit except Part I.A.3 apply.
b) Oil and Gas Construction: References in this permit to specific authority under the Federal Clean Water Act
(C WA)A)do not apply to stormwater discharges associated with construction activities directly related to oil and gas
exploration,production,processing,and treatment operations or transmission facilities,to the extent that the
references are limited by the federal Energy Policy Act of 2005. Stormwater discharges from oil and gas-related
construction are regulated under the State Discharge Permit System Regulations,Section 61.
2. Definitions
• a) Stormwater: Stormwater is precipitation-induced surface runoff.
b) Construction activity: Construction activity includes ground surface disturbing activities including,but not
limited to clearing,grading,excavation,demolition,installation of new or improved haul roads and access roads,
staging areas,stockpiling of fill materials,and borrow areas.Construction does not include routine maintenance to
maintain original line and grade,hydraulic capacity,or original purpose of the facility.
c) Small construction activity: Stormwater discharge associated with small construction activity means the
discharge of stormwater from construction activities that result in land disturbance of equal to or greater than one
acre and less than five acres. Small construction activity also includes the disturbance of less than one acre of total
land area that is part of a larger common plan of development or sale, if the larger common plan will ultimately
disturb equal to or greater than one and less than five acres.
d) Qualifying Local Program: This permit includes conditions that incorporate qualifying local erosion and
sediment control program(Qualifying Local Program)requirements by reference. A Qualifying Local Program is
a municipal stormwater program for stormwater discharges associated with small construction activity that has
been formally approved by the Division.
Other Definitions: Definitions of additional terms can be found in Part I.E.of this permit.
3. Permit Coverage Without Application—for small construction activities under a Qualifying Local Program only
If a construction site is within the jurisdiction of a Qualifying Local Program,the operator of the construction activity is
authorized to discharge stormwater associated with small construction activity under this general permit without the
submittal of an application to the Division.
a) Applicable Sections: For sites covered by a Qualifying Local Program,only Parts 1.A.1, 1.A.2, 1.A.3,I D.1,
I.D.2,I.D.3, I.D.4,I.D.7,I.D.8,I.D.11,I.E and Part II of this permit, with the exception of Parts ILA.1,ILB.3,
• 11.B.8,and 11.610,apply.
PART I
Page 4
Permit No.COR-030000
• A. COVERAGE UNDER THIS PERMIT(cont.)
b) Local Agency Authority: This permit does not pre-empt or supersede the authority of local agencies to prohibit,
restrict,or control discharges of stormwater to storm drain systems or other water courses within their jurisdiction.
c) Permit Coverage Termination: When a site under a Qualifying Local Program has been finally stabilized,
coverage under this permit is automatically terminated.
d) Compliance with Qualifying Local Program: A construction site operator that has authorization to discharge
under this permit under Part I.A.3 shall comply with the requirements of the Qualifying Local Program with
jurisdiction over the site.
e) Full Permit Applicability: The Division may require any operator within the jurisdiction of a Qualifying Local
Program covered under this permit to apply for and obtain coverage under the full requirements of this permit.The
operator must be notified in writing that an application for full coverage is required. When a permit certification
under this permit is issued to an operator that would otherwise be covered under Part I.A.3 of this permit,the full
requirements of this permit replace the requirements as per Part I.A.3 of this permit,upon the effective date of the
permit certification. A site brought under the full requirements of this permit must still comply with local
stormwater management requirements,policies or guidelines as required by Part I.D.I.g of this permit.
4. Application,Due Dates
a) Application Due Dates: At least ten calendar days prior to the commencement of construction activities,the
applicant shall submit an application form as provided by the Division,with a certification that the Stormwater
Management Plan(SWMP)is complete.
One original completed discharge permit application shall be submitted,by mail or hand delivery,to:
• Colorado Department of Public Health and Environment
Water Quality Control Division
WQCD-Permits-B2
4300 Cherry Creek Drive South
Denver,Colorado 80246-1530
b) Summary of Application: The application requires,at a minimum,the following:
1) The applicant's company name;address;telephone number;and email address(if available);whether the
applicant is the owner,developer,or contractor;and local contact information;
2) Project name,address,county and location of the construction site,including the latitude and longitude to the
nearest 15 seconds of the approximate center of the construction activity;
3) Legal description or map of the construction site;
4) Estimates of:the total area of the site,the area of the site that is expected to be disturbed,and the total area of
the larger common plan of development or sale to undergo disturbance;
5) The nature of the construction activity;
6) 'fhe anticipated start date and final stabilization date for the project;
7) The name of the receiving water(s),or the municipal separate storm sewer system and the ultimate(i.e.,
named)receiving water(s);
8) Certification that the SWMP for the construction site is complete(see Part I.C.below);and
9) The signature of the applicant,signed in accordance with Part I.F.1 of this permit.
5. Permit Certification Procedures
If the general permit is appropriate for the applicants operation,then a certification will be developed and the applicant
will be authorized to discharge stormwater under this general permit.
•
PART I
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Permit No.COR-030000
• A. COVERAGE UNDER THIS PERMIT(cont.)
a) Request for Additional Information: The Division shall have up to ten calendar days after receipt of the above
information to request additional data and/or deny the authorization for any particular discharge. Upon receipt of
additional information,the Division shall have an additional ten calendar days to issue or deny authorization for
the particular discharge. (Notification of denial shall be by letter,in cases where coverage under an alternate
general permit or an individual permit is required,instead of coverage under this permit.)
b) Automatic Coverage: If the applicant does not receive a request for additional information or a notification of
denial from the Division dated within ten calendar days of receipt of the application by the Division,authorization
to discharge in accordance with the conditions of this permit shall be deemed granted.
c) Individual Permit Required: If,atter evaluation of the application(or additional information,such as the
SWMP),MP),it is found that this general permit is not appropriate for the operation,then the application will be
processed as one for an individual permit. The applicant will be notified of the Division's decision to deny
certification under this general permit. For an individual permit,additional information may be requested,and 180
days may be required to process the application and issue the permit.
d) General vs. Individual Permit Coverage: Any permittee authorized by this permit may request to be excluded
from the coverage of this permit by applying for an individual CDPS permit. The permittee shall submit an
individual application,with reasons supporting the request,to the Division at least 180 days prior to any discharge.
e) Local Agency Authority: This permit does not pre-empt or supersede the authority of local agencies to prohibit,
restrict,or control discharges of stormwater to storm drain systems or other water courses within their jurisdiction.
6. Inactivation Notice
• When a site has been finally stabilized in accordance with the SW MP,the operator of the facility must submit an
Inactivation Notice form that is signed in accordance with Part l.F.l.of this permit. The Inactivation Notice form is
available from the Division and includes:
a) Permit certification number;
b) The permittee's name,address,telephone number;
c) Name,location,and county for the construction site for which the inactivation notice is being submitted.
d) Certification that the site has been finally stabilized,and a description of the final stabilization method(s).
7. Transfer of Permit
When responsibility for stormwater discharges at a construction site changes from one individual to another,the
permittee shall submit a completed Notice of Transfer and Acceptance of Terms form that is signed in accordance
with Part I.F.I.of this permit. The Notice of Transfer form is available from the Division and includes:
a) Permit certification number.
b) Name,location,and county for the construction site for which the Notice of Transfer is being submitted.
c) Identifying information for the new permittee.
d) Identifying information for the current permittee.
e) Effective date of transfer.
If the new responsible party will not complete the transfer form,the permit may be inactivated upon written request to
the Division and completion of the Inactivation Notice if the permittee has no legal responsibility,through ownership or
contract,for the construction activities at the site. In this case,the new owner or operator would be required to obtain
permit coverage separately.
•
PART I
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Permit No.COR-030000
• A. COVERAGE UNDER THIS PERMIT(cont.)
8. Reassignment of Permit
When a permittee no longer has control of a specific portion of a permitted site,and wishes to transfer coverage of that
portion of the site to a second party,the permittee shall submit a completed Notice of Reassignment of Permit
Coverage form that is signed in accordance with Part I.F.I.of this permit.The Notice of Reassignment of Permit
Coverage form is available from the Division and includes:
a) Current permit certification number.
b) Identifying information and certification as required by Part 1.A.4.b for the new permittee.
c) Identifying information for the current permittee,revised site information and certification for reassignment.
d) Effective date of reassignment
If the new responsible party will not complete the reassignment form,the applicable portion of the permitted site may be
removed from permit coverage upon written request to the Division if the permittee has no legal responsibility,through
ownership or contract, for the construction activities at the portion of the site. In this case,the new owner or operator
would be required to obtain permit coverage separately.
9. Sale of Residence to Homeowners
For residential construction only, when a residential lot has been conveyed to a homeowner and the criteria in
subsections a through e,below,are met,the transferred lot is removed from coverage under the permittee's certification
and the permittee is no longer responsible for meeting the terms and conditions of this permit for that property,including
the requirement to transfer or reassign permit coverage. The permittee remains responsible for inactivation of the
original certification.
• a) The lot has been sold to the homeowner(s)for private residential use;
b) the lot transferred is less than one acre;
c) all construction activity conducted by the permittee on lot is completed;
d) a certificate of occupancy(or equivalent)has been awarded to the home owner;and
e) the SWMP has been amended to indicate the lot is no longer covered by permit.
10. Permit Expiration Date
Authorization to discharge under this general permit shall expire on June 30,2012. The Division must evaluate and
reissue this general permit at least once every five years and must recertify the permittee's authority to discharge under
the general permit at such time. Therefore,a permittee desiring continued coverage under the general permit must
reapply by March 31,2012. The Division will initiate the renewal process;however,it is ultimately the permittee's
responsibility to ensure that the renewal is submitted.The Division will determine if the permittee may continue to
operate under the terms of the general permit. An individual permit may be required for any facility not reauthorized to
discharge under the reissued general permit. For facilities wishing to terminate authorization under the permit,provisions
of Part 1113.44 will be applicable
11. Individual Permit Criteria
Various criteria can be used in evaluating whether or not an individual(or alternate general)permit is required instead of
this general permit. This information may come from the application,SWMP,or additional information as requested by
the Division,and includes,but is not limited to,the following:
a) the quality of the receiving waters(i.e.,the presence of downstream drinking water intakes or a high quality
fishery,or for preservation of high quality water);
b) the size of the construction site
c) evidence of noncompliance under a previous permit for the operation;
d) the use of chemicals within the stormwater system;
e) discharges of pollutants of concern to waters for which there is an established Total Maximum Daily Load
.
(TMDL).
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Permit No.COR-030000
A. COVERAGE UNDER THIS PERMIT(cont.)
In addition,an individual permit may be required when the Division has shown or has reason to suspect that the
stormwater discharge may contribute to a violation of a water quality standard.
B. STORM WATER MANAGEMENT PLAN(SWMP)—GENERAL REQUIREMENTS
1. A SWMP shall be developed for each facility covered by this permit. The SWMP shall be prepared in accordance with
good engineering,hydrologic and pollution control practices. (The SWMP need not be prepared by a registered
engineer.)
2. The SWMP shall:
a) Identify all potential sources of pollution which may reasonably be expected to affect the quality of stormwater
discharges associated with construction activity from the facility;
b) Describe the practices to be used to reduce the pollutants in stormwater discharges associated with construction
activity at the facility;and ensure the practices are selected,installed,implemented and maintained in accordance
with good engineering practices;and
c) Be properly prepared,and updated in accordance with Part l.D.5.c,to ensure compliance with the terms and
conditions of this permit.
3. Facilities must implement the provisions of the SWMP as written,from commencement of construction activity until final
stabilization is complete,as a condition of this permit. The Division reserves the right to review the SWMP,and to
require additional measures to prevent and control pollution as needed.
• 4. The SWMP may reflect requirements for Spill Prevention Control and Countermeasure(SPCC)plans under section 311 of
the C W A,or Best Management Practices(BMPs)Programs otherwise required by a CDPS permit,and may incorporate
any part of such plans into the SWMP by reference,provided that the relevant sections of such plans are available as part
of the SWMP consistent with Part I.D.5.b.
C. STORM WATER ATER MANAGEMENT'PLAN(SWMP)-CONTENTS
The SWMP shall include the following items,at a minimum:
1. Site Description. The SWMP shall clearly describe the construction activity,to include:
a) The nature of the construction activity at the site.
b) The proposed sequence for major activities.
c) Estimates of the total area of the site,and the area and location expected to be disturbed by clearing,excavation,
grading,or other construction activities.
d) A summary of any existing data describing the soil,soil erosion potential or the quality of any discharge from the
site.
e) A description of the existing vegetation at the site and an estimate of the percent vegetative ground cover.
I) The location and description of all potential pollution sources including ground surface disturbing activities,
vehicle fueling,storage of fertilizers or chemicals,etc.
g) The location and description of any anticipated allowable sources of non-stormwater discharge at the site,e.g.,
springs and landscape irrigation return flow.
h) The name of the receiving water(s)and the size,type and location of any outfall(s). If the stormwater discharge is
to a municipal separate storm sewer system,the name of that system,the location of the storm sewer discharge,
and the ultimate receiving water(s).
2. Site Map. The SWMP shall include a legible site map(s),showing the entire site,identifying:
• a) construction site boundaries;
b) all areas of ground surface disturbance;
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Permit No.COR-030000
• C. STORM WATER ATER MANAGEMENT PLAN(SWMP)—CONTENTS
c) areas of cut and fill;
d) areas used for storage of building materials,equipment,soil,or waste;
e) location of dedicated asphalt or concrete batch plants;
t) location of major structural and non-structural BMPs identified in the SWMP;
g) location of springs,streams, wetlands and other surface waters
3. Stormwater Management Controls.
The SWMP must include a description of all stormwater management controls that will be implemented as part of the
construction activity to control pollutants in stormwater discharges. The appropriateness and priorities of stormwater
management controls in a SWMP shall reflect the potential pollutant sources identified at the facility.
The description of stormwater management controls shall address the following components at a minimum:
a) SWMP Administrator-The SWMP shall identify a specific individual(s),position or title who is responsible for
developing,implementing,maintaining,and revising the SWMP. The activities and responsibilities of the
administrator shall address all aspects of the facility's SWMP.
b) Identification of Potential Pollutant Sources-The SWMP shall identify and describe all potential sources of
pollutants at the site,and assess the potential of these sources to contribute pollutants to stormwater discharges
associated with construction activity.
At a minimum each of the following shall be evaluated for the potential for contributing pollutants to runoff:
• all exposed and stored soils
• • vehicle tracking of sediments
• management of contaminated soils
• loading and unloading operations
• outdoor storage activities(building materials, fertilizers,chemicals,etc.)
• vehicle and equipment maintenance and fueling
• significant dust or particulate generating processes
• routine maintenance activities involving fertilizers,pesticides,detergents,fuels,solvents,oils,etc.
• on-site waste management practices(waste piles,liquid wastes,dumpsters,etc.)
• concrete truck/equipment washing,including the concrete truck chute and associated fixtures and
equipment
• dedicated asphalt and concrete batch plants
• non-industrial waste sources such as worker trash and portable toilets
• other areas or procedures where potential spills can occur
c) Best Management Practices(BMPs)for Stormwater Pollution Prevention-The SWMP shall identify and
describe appropriate BMPs that will be implemented at the facility to reduce the potential of the sources identified
in Part I.C.3.b to contribute pollutants to stormwater discharges.
I) Structural practices for erosion and sediment control. The SWMP shall clearly describe and locate all
structural practices implemented at the site to minimize erosion and sediment transport. Practices may
include,but are not limited to:straw bales,wattles/sediment control logs,silt fences,earth dikes,drainage
swales,sediment traps,subsurface drains,pipe slope drains, inlet protection,outlet protection,gabions,and
temporary or permanent sediment basins.
2) Non-structural practices for erosion and sediment control. The SWMP shall clearly describe and locate,as
applicable,all non-structural practices implemented at the site to minimize erosion and sediment transport.
Description must include interim and permanent stabilization practices,and site-specific scheduling for
implementation of the practices. The SWMP should ensure that existing vegetation is preserved where
•
possible. Non-structural practices may include,but are not limited to:temporary vegetation,permanent
vegetation,mulching,geotextiles,sod stabilization,vegetative buffer strips,protection of trees,and
preservation of mature vegetation.
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Permit No.COR-030000
• C. STORM WATER MANAGEMENT PLAN(SWMP)—CONTENTS
3) Phased BMP implementation. The SWMP shall clearly describe the relationship between the phases of
construction,and the implementation and maintenance of both structural and non-structural stormwater
management controls. The SWMP must identify which stormwater management controls will be
implemented during the project phases,which can include,but are not limited to,clearing and grubbing;road
construction; utility and infrastructure installation;vertical construction; final grading;and final stabilization.
4) Materials Handling and Spill Prevention. The SWMP shall clearly describe and locate all practices
implemented at the site to minimize impacts from procedures or significant materials(see definitions at Part
I.E.)that could contribute pollutants to runoff. Such procedures or significant materials could include:
exposed storage of building materials;paints and solvents;fertilizers or chemicals; waste material;and
equipment maintenance or fueling procedures.
Areas or procedures where potential spills can occur shall have spill prevention and response procedures
identified in the SWMP.
5) Dedicated concrete or asphalt batch plants. The SWMP shall clearly describe and locate all practices
implemented at the site to control stormwater pollution from dedicated concrete batch plants or dedicated
asphalt batch plants covered by this certification.
6) Vehicle tracking control. The SWMP shall clearly describe and locate all practices implemented at the site to
control potential sediment discharges from vehicle tracking. Practices must be implemented for vehicle
tracking control,and can include: minimizing site access;street sweeping or scraping;tracking pads;graveled
parking areas;requiring that vehicles stay on paved areas on-site; wash racks;contractor education;etc;
and/or sediment control BMPs.
• 7) Waste management and disposal. The SWMP shall clearly describe and locate the practices implemented at
the site to control stormwater pollution from site wastes such as building waste(liquid and solid)and concrete
wash out activities. Concrete wash out activities must be conducted in a manner that does not result in the
discharge of materials,or contribute pollutants to stormwater runoff.
8) BMP specifications. The SWMP shall clearly describe the installation and implementation specifications for
each BMP identified in the SWMP to ensure proper implementation,operation and maintenance of the BMP.
4. Final Stabilization and Lone-term Stormwater Management
a) [he SWMP shall clearly describe the practices used to achieve final stabilization of disturbed areas at the site,and
practices to control pollutants in stormwater discharges that will occur after construction operations have been
completed at the site.
b) Final stabilization practices for obtaining a vegetative cover should include,as appropriate:seed mix selection and
application methods;soil preparation and amendments;soil stabilization practices(e.g.,crimped straw,hydro
mulch or rolled erosion control products);appropriate sediment control BMPs as needed until final stabilization is
achieved;etc.
c) Final stabilization is reached when all ground surface disturbing activities at the site have been completed,and
uniform vegetative cover has been established with a density of at least 70 percent of pre-disturbance levels,or
equivalent permanent,physical erosion reduction methods have been employed.
The Division may,after consultation with the permittee and upon good cause,amend the final stabilization criteria for
specific operations.
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Permit No.COR-030000
• C. STORM WATER MANAGEMENT PLAN(SWMP)-CONTENTS
5. Inspection and Maintenance
Part 1.D.6 of the permit includes requirements for site inspections. Part I.D.7 of the permit includes requirements for
BMP maintenance. The SWMP shall clearly describe the inspection and maintenance procedures implemented at the site
to maintain all erosion and sediment control practices and other protective practices identified in the SWMP,in good and
effective operating condition.
D. TERMS AND CONDITIONS
1. General Limitations
'Me following limitations shall apply to all discharges covered by this permit:
a) Stormwater discharges from construction activities shall not cause,have the reasonable potential to cause,or
measurably contribute to an excursion above any water quality standard,including narrative standards for water
quality.
b) Concrete wash water shall not be discharged to state surface waters or to storm sewer systems. On-site disposal of
concrete washout waste is not authorized by this permit.
c) Bulk storage structures for petroleum products and any other chemicals shall have secondary containment or
equivalent adequate protection so as to contain all spills and prevent any spilled material from entering State
waters.
d) No chemicals are to be added to the discharge unless permission for the use of a specific chemical is granted by
• the Division. In granting the use of such chemicals,special conditions and monitoring may be addressed by
separate letter.
e) The Division reserves the right to require sampling and testing,on a case-by-case basis,in the event that there is
reason to suspect that compliance with the SWMP is a problem,or to measure the effectiveness of the BMPs in
removing pollutants in the effluent. Such monitoring may include Whole Effluent toxicity testing.
f) All wastes(liquid and solid)composed of building materials must be removed from the site for disposal in
licensed disposal facilities. No building material wastes or unused building materials shall be buried,dumped,or
discharged at the site.
g) All dischargers must comply with the lawful requirements of federal agencies,municipalities,counties,drainage
districts and other local agencies regarding any discharges of stormwater to storm drain systems or other water
courses under their jurisdiction,including applicable requirements in municipal stormwater management programs
developed to comply with CDPS permits. Dischargers must comply with local stormwater management
requirements,policies or guidelines including erosion and sediment control.
2. BMP Implementation and Design Standards
Facilities must select,install,implement,and maintain appropriate BMPs, following good engineering,hydrologic and
pollution control practices. BMPs implemented at the site must be adequately designed to control all potential pollutant
sources associated with construction activity to prevent pollution or degradation of State waters.
3. Prohibition of Non-Stormwater Discharges
a) Except as provided in paragraph b,below,all discharges covered by this permit shall be composed entirely of
stormwater associated with construction activity. Discharges of material other than stormwater must be
addressed in a separate CDPS permit issued for that discharge.
•
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Permit No.COR-030000
• D. TERMS AND CONDITIONS
b) Discharges from the following sources that are combined with stormwater discharges associated with construction
activity may be authorized by this permit,provided that the non-stormwater component of the discharge is
identified in the SWMP(see Part I.C.l.g of this permit):
-emergency fire fighting activities -landscape irrigation return flow
-uncontaminated springs
4. Releases in Excess of Reportable Quantities
This permit does not relieve the permittee of the reporting requirements of 40 CFR 110,40 CFR 117 or 40 CFR 302.
Any discharge of hazardous material must be handled in accordance with the Division's Noncompliance Notification
Requirements(see Part 11.A.3 of the permit).
5. SWMP Requirements
a) SWMP Preparation and Implementation: The SWMP shall be prepared prior to applying for coverage under the
general permit,and certification of its completion submitted with the application. The SWMP shall be implemented
prior to commencement of construction activities. The plan shall be updated as appropriate(see paragraph c,below),
below).SWMP provisions shall be implemented until expiration or inactivation of permit coverage.
b) SWMP Retention Requirements: A copy of the SWMP must be retained on site unless another location,specified
by the permittee,is approved by the Division.
c) SWMP Review/Changes: The permittee shall amend the SWMP whenever there is a:
1) a change in design,construction,operation,or maintenance of the site,which would require the implementation
• of new or revised BMPs;or
2) if the SWMP proves to be ineffective in achieving the general objectives of controlling pollutants in stormwater
discharges associated with construction activity.
SWMP changes shall be made prior to changes in the site conditions,except as follows. SWMP changes addressing
BMP installation and/or implementation that are made responsive to changing conditions,or when current BMPs are
determined ineffective,shall be made as soon as practicable,but in no case more than 72 hours after the change(s)in
BMP installation and/or implementation occur at the site. If the SWMP revisions will not occur prior to BMP
change(s)at the site,a notation must be included in the SWMP prior to the change(s)that includes the time and date
of the change(s)in the field,an identification of the BMP(s)removed or added,and the location of those BMP(s).
SWMP revisions may include,but are not limited to:potential pollutant source identification;selection of appropriate
BMPs for site conditions;BMP maintenance procedures;and interim and final stabilization practices. The SWMP
changes may include a schedule for further BMP design,implementation,and SWMP revisions provided that details
for interim BMPs are included in the SWMP that will be implemented during the interim period,if necessary,to
ensure compliance with the conditions of this permit.
6. Inspections
Site inspections must be conducted in accordance with the following requirements and minimum schedules. The
required minimum inspection schedules do not reduce or eliminate the permittee's responsibility to implement and
maintain BMPs in good and effective operational condition,and in accordance with the SWMP.
a) Minimum Inspection Schedule: The permittee shall make a thorough inspection,in accordance with the
requirements in I.D.6.b below,at least every 14 calendar days. Also,post-storm event inspections must be
conducted within 24 hours after the end of any precipitation or snowmelt event that causes surface erosion. The
following exclusions to this baseline inspection schedule are allowed:
•
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Permit No.COR-030000
• D. TERMS AND CONDITIONS
I) Post Storm Event Inspections at Temporarily Idle Sites—If no construction activities will occur during
the 48 hours following a storm event,post-storm event inspections shall be conducted prior to commencing
construction activities,but no later than 72 hours following the storm event. The occurrence of any such
delayed inspection must be documented in the inspection record. Inspections still must be conducted at least
every 14 calendar days.
2) Inspections at Completed Sites/Areas—For sites or portions of sites that meet the following criteria,but
final stabilization has not been achieved due to a vegetative cover that has not become established,the
permittee shall make a thorough inspection of their stormwater management system at least once every
month,and post-storm event inspections are not required:
i) all construction activities that will result in surface ground disturbance are completed;
ii) all activities required for final stabilization,in accordance with the SWMP,have been completed,with
the exception of the application of seed that has not occurred due to seasonal conditions or the necessity
for additional seed application to augment previous efforts; and
iii) the SWMP must be amended to indicate those areas that will be inspected in accordance with the
reduced schedule allowed for in this subsection.
3) Winter Conditions Inspections Exclusion—Inspections are not required at sites where snow cover exists
over the entire site for an extended period,and melting conditions posing a risk of surface erosion do not
exist. This exception is applicable only during the period where melting conditions do not exist,and applies
to the routine 14-day and monthly inspections,as well as the post-storm-event inspections. The following
information must be documented in the inspection record for use of this exclusion:dates when snow covered
occurred,date when construction ceased,and date melting conditions began. Inspections,as described above,
are required at all other times.
• When site conditions make this schedule impractical,the permittee may petition the Division to grant an alternate
inspection schedule.
b) Inspection Requirements
1) Inspection Scope-"fhe construction site perimeter,all disturbed areas,material and/or waste storage areas
that are exposed to precipitation,discharge locations,and locations where vehicles access the site shall be
inspected for evidence of,or the potential for,pollutants entering the stormwater drainage system. Erosion
and sediment control practices identified in the SWMP shall be evaluated to ensure that they are operating
correctly.
2) Inspection Report/Records-The permittee shall keep a record of inspections. Inspection reports must
identify any incidents of non-compliance with the terms and conditions of this permit. Inspection records
must be retained for three years from expiration or inactivation of permit coverage. At a minimum the
inspection report must include:
i) The inspection date;
ii) Name(s)and title(s)of personnel making the inspection;
iii) Location(s)of discharges of sediment or other pollutants from the site;
iv) Location(s)of BMPs that need to be maintained;
v) Location(s)of BMPs that failed to operate as designed or proved inadequate for a particular location;
vi) Location(s)where additional BMPs are needed that were not in place at the time of inspection;
vii Deviations from baseline inspection schedule as provided in Part I.D.6.a above.
vii) Description of corrective action for items iv,v,and vi,above,and dates corrective action(s)taken,and
measures taken to prevent future violations,including requisite changes to the SWMP,as necessary;
and
viii) After corrective action(s)has been taken,or where a report does not identify any incidents requiring
corrective action,the report shall contain a signed statement indicating the site is in compliance with the
• permit.
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Permit No.COR-030000
• D. TERMS AND CONDITIONS
c) Required Actions Following Site Inspections—Where site inspections note the need for BMP maintenance
activities,BMPs must be maintained in accordance with the SWMP and Part 1.O.7 of the permit. Repair,
replacement,or installation of new BMPs determined necessary during site inspections to address ineffective or
inadequate BMPs must be conducted in accordance with Part 1.D.8 of the permit. SWMP updates required as a
result of deficiencies in the SWMP noted during site inspections shall be made in accordance with Part I.D.5.c of
the permit.
7. BMP Maintenance
All erosion and sediment control practices and other protective measures identified in the SWMP must be maintained in
effective operating condition. Proper selection and installation of BMPs and implementation of comprehensive
Inspection and Maintenance procedures, in accordance with the SWMP,should be adequate to meet this condition.
BMPs that are not adequately maintained in accordance with good engineering,hydrologic and pollution control
practices,including removal of collected sediment outside the acceptable tolerances of the BMPs and preparation for
post-construction stormwater control,are considered no longer operating effectively and must be addressed in
accordance with Part I.D.8,below. A specific timeline for implementing maintenance procedures is not included in this
permit because BMP maintenance is intended to be proactive,not responsive. Observations resulting in BMP
maintenance activities can be made during a site inspection,or during general observations of site conditions.
8. Replacement and Failed BMPs
Adequate site assessment must be performed as part of comprehensive Inspection and Maintenance procedures,to assess
the adequacy of BMPs at the site,and the necessity of changes to those BMPs to ensure continued effective performance.
Where site assessment results in the determination that new or replacement BMPs are necessary,the BMPs must be
installed to ensure continuous implementation of BMPs as per Part I.D.2.
• Where BMPs have failed,resulting in noncompliance with Part 1.D.2,they must be addressed as soon as possible,
immediately in most cases,to minimize the discharge of pollutants.
When new BMPs or installed or BMPs are replaced,the SWMP must be updated in accordance with Part LD.5(c).
9. Reporting
No regular reporting requirements are included in this permit;however,the Division reserves the right to request that a
copy of the inspection reports be submitted.
10. SWMP Availability
A copy of the SWMP shall be provided upon request to the Division,EPA,or any local agency in charge of approving
sediment and erosion plans,grading plans or stormwater management plans,and within the time frame specified in the
request. If the SWMP is required to be submitted to any of these entities,it must include a signed certification in
accordance with Part LF.I of the permit,certifying that the SWMP is complete and meets all permit requirements.
All SWMPs MPs required under this permit are considered reports that shall be available to the public under Section 308(6)of
the CWA and Section 61.5(4)of the Colorado Discharge Permit System Regulations. The permittee shall make plans
available to members of the public upon request,unless the SWMP has been submitted to the Division. However,the
permittee may claim any portion of a SWMP as confidential in accordance with 40 CFR Part 2.
11. Total Maximum Daily Load(TMDL)
If a TMDL has been approved for any waterbody into which the permittee discharges,and stormwater discharges
associated with construction activity have been assigned a pollutant-specific Wasteload Allocation(WLA)under the
TMDL,the Division will either:
•
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Permit No.COR-030000
• D. TERMS AND CONDITIONS
a) Ensure that the WLA is being implemented properly through alternative local requirements,such as by a municipal
stormwater permit;or
b) Notify the permittee of the WLA,and amend the permittee's certification to add specific BMPs and/or other
requirements,as appropriate. The permittee may be required to do the following:
1) Under the permittee's SWMP,implement specific management practices based on requirements of the WLA,and
evaluate whether the requirements are being met through implementation of existing stormwater BMPs or if
additional BMPs are necessary. Document the calculations or other evidence that show that the requirements are
expected to be met;and
2) If the evaluation shows that additional or modified BMPs are necessary,describe the type and schedule for the
BMP additions/revisions.
Discharge monitoring may also be required. The permittee may maintain coverage under the general permit
provided they comply with the applicable requirements outlined above. The Division reserves the right to require
individual or alternate general permit coverage.
E. ADDITIONAL DEFINITIONS
For the purposes of this permit:
1. Best management practices(BMPs): schedules of activities,prohibitions of practices,maintenance procedures,and
other management practices to prevent or reduce the pollution of waters of the State. BMPs also include treatment
requirements,operating procedures,and practices to control site runoff, spillage or leaks, waste disposal,or drainage
• from material storage.
2. Dedicated asphalt plants and concrete plants: portable asphalt plants and concrete plants that are located on or
adjacent to a construction site and that provide materials only to that specific construction site.
3. Final stabilization: when all ground surface disturbing activities at the site have been completed,and uniform
vegetative cover has been established with a density of at least 70 percent of pre-disturbance levels,or equivalent
permanent,physical erosion reduction methods have been employed. For purposes of this permit,establishment of a
vegetative cover capable of providing erosion control equivalent to pre-existing conditions at the site will be considered
final stabilization.
4. Municipal separate storm sewer system:a conveyance or system of conveyances(including:roads with drainage
systems,municipal streets,catch basins,curbs,gutters,ditches,man-made channels,or storm drains),owned or operated
by a State,city,town,county,district,or other public body(created by state law),having jurisdiction over disposal of
sewage,industrial waste,stormwater,or other wastes;designed or used for collecting or conveying stormwater.
5. Operator:the entity that has day-to-day supervision and control of activities occurring at the construction site. This can
be the owner,the developer,the general contractor or the agent of one of these parties,in some circumstances. It is
anticipated that at different phases of a construction project,different types of parties may satisfy the definition of
'operator'and that the permit may be transferred as the roles change.
6. Outfall: a point source at the point where stormwater leaves the construction site and discharges to a receiving water or
a stormwater collection system.
7. Part of a larger common plan of development or sale:a contiguous area where multiple separate and distinct
construction activities may be taking place at different times on different schedules.
8. Point source:any discernible,confined and discrete conveyance from which pollutants are or may be discharged. Point
• source discharges of stormwater result from structures which increase the imperviousness of the ground which acts to
collect runoff,with runoff being conveyed along the resulting drainage or grading pattern.
PART I
Page 15
Permit No.COR-030000
• E. ADDITIONAL DEFINITIONS
9. Process water: any water which during manufacturing or processing,comes into contact with or results from the
production of any raw material,intermediate product,finished product,by product or waste product. This definition
includes mine drainage.
10. Receiving Water: any classified stream segment(including tributaries)in the State of Colorado into which stormwater
related to construction activities discharges. This definition includes all water courses,even if they are usually dry,such
as borrow ditches,arroyos,and other unnamed waterways.
11. Significant Materials include but are not limited to:raw materials; fuels;materials such as solvents,detergents,and
plastic pellets; finished materials such as metallic products;raw materials used in food processing or production;
hazardous substances designated under section 101(14)of CERCLA;any chemical the facility is required to report
pursuant to section 313 of title III of SARA; fertilizers;pesticides;and waste products such as ashes,slag and sludge that
have the potential to be released with stormwater discharge.
12. Stormwater: precipitation-induced surface runoff.
F. GENERAL REQUIREMENTS
1. Signatory Requirements
a) All reports required for submittal shall be signed and certified for accuracy by the permittee in accordance with the
following criteria:
1) In the case of corporations,by a principal executive officer of at least the level of vice-president or his or her
duly authorized representative,if such representative is responsible for the overall operation of the facility
• from which the discharge described in the form originates;
2) In the case of a partnership,by a general partner;
3) In the case of a sole proprietorship,by the proprietor;
4) In the case of a municipal,state,or other public facility,by either a principal executive officer,ranking
elected official,or other duly authorized employee,if such representative is responsible for the overall
operation of the facility from which the discharge described in the form originates.
b) Changes to authorization. If an authorization under paragraph a)of this section is no longer accurate because a
different individual or position has responsibility for the overall operation of the facility,a new authorization
satisfying the requirements of paragraph a)of this section must be submitted to the Division,prior to or together
with any reports,information,or applications to be signed by an authorized representative.
c) Certification. Any person signing a document under paragraph a)of this section shall make the following
certification:
"I certify under penalty of law that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,
or those persons directly responsible for gathering the information,the information submitted is,to the best of
my knowledge and belief,true,accurate,and complete. I am aware that there are significant penalties for
submitting false information,including the possibility of fine and imprisonment for knowing violations."
2. Retention of Records
a) The permittee shall retain copies of the SWMP and all reports required by this permit and records of all data used
to complete the application to be covered by this permit,for three years from expiration or inactivation of permit
coverage.
• b) The permittee shall retain a copy of the SWMP required by this permit at the construction site from the date of
project initiation to the date of expiration or inactivation of permit coverage,unless another location,specified by
the permittee,is approved by the Division.
PART
Page 16
• Permit No.COR-030000
F. GENERAL REQUIREMENTS
3. Monitoring
The Division reserves the right to require sampling and testing,on a case-by-case basis(see Part 1.D.I.e),for example to
implement the provisions of a TMDL(see Part I.D.1I of the permit). Reporting procedures for any monitoring data
collected will be included in the notification by the Division of monitoring requirements.
If monitoring is required,the following definitions apply:
a) The thirty(30)day average shall be determined by the arithmetic mean of all samples collected during a thirty(30)
consecutive-day period.
b) A grab sample, for monitoring requirements,is a single"dip and take"sample.
PART II
A. MANAGEMENT REQUIREMENTS
L Amending a Permit Certification
The permittee shall inform the Division(Permits Section)in writing of changes to the information provided in the permit
application,including the legal contact,the project legal description or map originally submitted with the application,or
the planned total disturbed acreage.The permittee shall furnish the Division with any plans and specifications which the
Division deems reasonably necessary to evaluate the effect on the discharge and receiving stream. If applicable,this
notification may be accomplished through submittal of an application for a CDPS process water permit authorizing the
• discharge.The SWMP MP shall be updated and implemented prior to the changes(see Part I.D.5.c).
Any discharge to the waters of the State from a point source other than specifically authorized by this permit or a
different CDPS permit is prohibited.
2. Special Notifications- Definitions
a) Spill: An unintentional release of solid or liquid material which may cause pollution of state waters.
b) Upset: An exceptional incident in which there is unintentional and temporary noncompliance with permit effluent
limitations because of factors beyond the reasonable control of the permittee. An upset does not include
noncompliance to the extent caused by operational error,improperly designed treatment facilities,inadequate
treatment facilities,lack of preventative maintenance,or careless or improper operation.
3. Noncompliance Notification
a) The permittee shall report the following instances of noncompliance:
I) Any noncompliance which may endanger health or the environment;
2) Any spill or discharge of hazardous substances or oil which may cause pollution of the waters of the state.
3) Any discharge of stormwater which may cause an excursion of a water quality standard.
b) For all instances of noncompliance based on environmental hazards and chemical spills and releases,all needed.
information must be provided orally to the Colorado Department of Public Health and Environment spill reporting
line(24-hour number for environmental hazards and chemical spills and releases: 1-877-518-5608)within 24
hours from the time the permittee becomes aware of the circumstances. For all other instances of noncompliance
• as defined in this section,all needed information must be provided orally to the Water Quality Control Division
PART 11
Page 17
Permit No.COR-030000
• A. MANAGEMENT REQUIREMENTS
within 24 hours from the time the permittee becomes aware of the circumstances. For all instances of
noncompliance identified here,a written submission shall also be provided within 5 calendar days of the time the
permittee becomes aware of the circumstances. The written submission shall contain a description of:
I) The noncompliance and its cause;
2) The period of noncompliance,including exact dates and times,and if the noncompliance has not been
corrected,the anticipated time it is expected to continue;
3) Steps taken or planned to reduce,eliminate,and prevent reoccurrence of the noncompliance.
4. Submission of Incorrect or Incomplete Information
Where the permittee failed to submit any relevant facts in a permit application,or submitted incorrect information in a
permit application or report to the Division,or relevant new information becomes available,the permittee shall promptly
submit the relevant application information which was not submitted or any additional information needed to correct any
erroneous information previously submitted.
5. Bypass
a) A bypass,which causes effluent limitations(i.e.,requirements to implement BMPs in accordance with Parts 1.B.3
and 1.112 of the permit)to be exceeded is prohibited,and the Division may take enforcement action against a
permittee for such a bypass,unless:
1) Bypass was unavoidable to prevent loss of life,personal injury,or severe property damage;
. 2) There were no feasible alternatives to the bypass,such as the use of auxiliary treatment facilities(e.g.,
alternative BMPs),retention of untreated wastes,or maintenance during normal periods of equipment
downtime.This condition is not satisfied if the permittee could have installed adequate backup equipment
(e.g.,implemented additional BMPs)to prevent a bypass which occurred during normal periods of equipment
downtime or preventative maintenance;and
3) The permittee submitted notices as required in"Non-Compliance Notification," Part 11.A.3.
6. Upsets
a) Effect of an Upset: An upset constitutes an affirmative defense to an action brought for noncompliance with
permit limitations and requirements if the requirements of paragraph b of this section are met. (No determination
made during administrative review of claims that noncompliance was caused by upset,and before an action for
noncompliance,is final administrative action subject to judicial review.)
b) Conditions Necessary for a Demonstration of Upset: A permittee who wishes to establish the affirmative
defense of upset shall demonstrate through properly signed contemporaneous operating logs,or other relevant
evidence that:
I) An upset occurred and that the permittee can identify the specific cause(s)of the upset;
2) The permitted facility was at the time being properly operated;
3) The permittee submitted notice of the upset as required in Part ll.A.3.of this permit(24-hour notice);and
4) The permittee complied with any remedial measures required under 40 CFR Section 122.41(d)of the federal
regulations or Section 61.8(3)(h)of the State Discharge Permit System Regulations.
PART II
Page 18
Permit No.COR-030000
III A. MANAGEMENT REQUIREMENTS
c) Burden of Proof: In any enforcement proceeding the permittee seeking to establish the occurrence of an upset
has the burden of proof.
7. Removed Substances
Solids,sludges,or other pollutants removed in the course of treatment or control of discharges shall be properly disposed
of in a manner such as to prevent any pollutant from such materials from entering waters of the State.
8. Minimization of Adverse Impact
The permittee shall take all reasonable steps to minimize any adverse impact to waters of the State resulting from
noncompliance with any terms and conditions specified in this permit,including such accelerated or additional
monitoring as necessary to determine the nature and impact of the noncomplying discharge.
9. Reduction,Loss,or Failure of Stormwater Controls
The permittee has the duty to halt or reduce any activity if necessary to maintain compliance with the permit
requirements. Upon reduction,loss,or failure of any stormwater controls,the permittee shall,to the extent necessary to
maintain compliance with its permit,control production,or remove all pollutant sources from exposure to stormwater,or
both until the stormwater controls are restored or an alternative method of treatment/control is provided.
It shall not be a defense for a permittee in an enforcement action that it would be necessary to halt or reduce the
permitted activity in order to maintain compliance with the conditions of this permit.
10. Proper Operation and Maintenance
• The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control(and
related appurtenances)which are installed or used by the permittee to achieve compliance with the conditions of this
permit. Proper operation and maintenance includes effective performance,adequate funding,adequate operator staffing
and training,and adequate laboratory and process controls, including appropriate quality assurance procedures. This
provision requires the operation of back-up or auxiliary facilities or similar systems only when necessary to achieve
compliance with the conditions of the permit.
B. RESPONSIBILITIES
1. Inspections and RiEht to Entry
The permittee shall allow the Director of the State Water Quality Control Division,the EPA Regional Administrator,
and/or their authorized representative(s),upon the presentation of credentials:
a) To enter upon the permittee's premises where a regulated facility or activity is located or in which any records are
required to be kept under the terms and conditions of this permit;
b) At reasonable times to have access to and copy any records required to be kept under the terms and conditions of
this permit and to inspect any monitoring equipment or monitoring method required in the permit;and
c) To enter upon the permittee's premises to investigate,within reason,any actual,suspected,or potential source of
water pollution,or any violation of the Colorado Water Quality Control Act. The investigation may include,but is
not limited to,the following: sampling of any discharge and/or process waters,the taking of photographs,
interviewing permittee staff on alleged violations and other matters related to the permit,and access to any and all
facilities or areas within the permittee's premises that may have any effect on the discharge,permit,or any alleged
violation.
PART IL
Page 19
Permit No.COR-030000
• B. RESPONSIBILITIES
2. Duty to Provide Information
The permittee shall furnish to the Division,within the time frame specified by the Division,any information which the
Division may request to determine whether cause exists for modifying,revoking and reissuing,or inactivating coverage
under this permit,or to determine compliance with this permit. The permittee shall also furnish to the Division, upon
request,copies of records required to be kept by this permit.
3. Transfer of Ownership or Control
Certification under this permit may be transferred to a new permittee if:
a) The current permittee notifies the Division in writing when the transfer is desired as outlined in Part LA.7; and
b) The notice includes a written agreement between the existing and new permittees containing a specific date for
transfer of permit responsibility,coverage and liability between them;and
c) The current permittee has met all fee requirements of the State Discharge Permit System Regulations,Section
61.15.
4. Modification,Suspension,or Revocation of Permit By Division
All permit modification,inactivation or revocation and reissuance actions shall be subject to the requirements of the State
Discharge Permit System Regulations,Sections 61.5(2),61.5(3),61.7 and 61.15,5 C.C.R. 1002-61,except for minor
modifications.
• a) This permit,and/or certification under this permit,may be modified,suspended,or revoked in whole or in part
during its term for reasons determined by the Division including,but not limited to,the following:
I) Violation of any terms or conditions of the permit;
2) Obtaining a permit by misrepresentation or failing to disclose any fact which is material to the granting or
denial of a permit or to the establishment of terms or conditions of the permit;
3) Materially false or inaccurate statements or information in the application for the permit;
4) Promulgation of toxic effluent standards or prohibitions(including any schedule of compliance specified in
such effluent standard or prohibition)which are established under Section 307 of the Clean Water Act, where
such a toxic pollutant is present in the discharge and such standard or prohibition is more stringent than any
limitation for such pollutant in this permit.
b) This permit,and/or certification under this permit,may be modified in whole or in part due to a change in any
condition that requires either a temporary or permanent reduction or elimination of the permitted discharge,such
as:
l) Promulgation of Water Quality Standards applicable to waters affected by the permitted discharge;or
2) Effluent limitations or other requirements applicable pursuant to the State Actor federal requirements;or
3) Control regulations promulgated;or
4) Other available information indicates a potential for violation of adopted Water Quality Standards or stream
classifications.
•
PART II
Page 20
Permit No.COR-030000
• B. RESPONSIBILITIES
c) This permit,or certification under this permit,may be modified in whole or in part to include new effluent
limitations and other appropriate permit conditions where data submitted pursuant to Part I indicate that such
effluent limitations and permit conditions are necessary to ensure compliance with applicable water quality
standards and protection of classified uses.
d) At the request of the permittee,the Division may modify or inactivate certification under this permit if the
following conditions are met:
1) In the case of inactivation,the permittee notifies the Division of its intent to inactivate the certification,and
certifies that the site has been finally stabilized;
2) In the case of inactivation,the permittee has ceased any and all discharges to state waters and demonstrates to
the Division there is no probability of further uncontrolled discharge(s)which may affect waters of the State.
3) The Division finds that the permittee has shown reasonable grounds consistent with the Federal and State
statutes and regulations for such modification,amendment or inactivation;
4) Fee requirements of Section 61.15 of State Discharge Permit System Regulations have been met;and
5) Applicable requirements of public notice have been met.
For small construction sites covered by a Qualifying Local Program,coverage under this permit is automatically
terminated when a site has been finally stabilized.
5. Permit Violations
• Failure to comply with any terms and/or conditions of this permit shall be a violation of this permit.
Dischargers of stormwater associated with industrial activity,as defined in the EPA Stormwater Regulation(40 CFR
122.26(b)(14)and Section 61.3(2)of the Colorado Discharge Permit System Regulations,which do not obtain coverage
under this or other Colorado general permits,or under an individual CDPS permit regulating industrial stormwater,will
be in violation of the federal Clean Water Act and the Colorado Water Quality Control Act,25-8-101,as amended.
Failure to comply with CDPS permit requirements will also constitute a violation.
6. Legal Responsibilities
The issuance of this permit does not convey any property or water rights in either real or personal property,or stream
flows,or any exclusive privileges,nor does it authorize any injury to private property or any invasion of personal rights,
nor any infringement of Federal,State or local laws or regulations.
Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any
responsibilities,liabilities,or penalties established pursuant to any applicable State law or regulation under authority
granted by Section 510 of the Clean Water Act.
7. Severability
The provisions of this permit are severable. If any provisions of this permit,or the application of any provision of this
permit to any circumstance,are held invalid,the application of such provision to other circumstances and the application
of the remainder of this permit shall not be affected.
8. Renewal Application
If the permittee desires to continue to discharge,a permit renewal application shall be submitted at least ninety(90)days
• before this permit expires. If the permittee anticipates that there will be no discharge after the expiration date of this
permit,the Division should be promptly notified so that it can inactivate the certification in accordance with Part
II.B.4.d.
PART I1
Page 21
Permit No.COR-030000
• B. RESPONSIBILITIES
9. Confidentiality
Except for data determined to be confidential under Section 308 of the Federal Clean Water Act and Regulations for the
State Discharge Permit System 61.5(4),all reports prepared in accordance with the terms of this permit shall be available
for public inspection at the offices of the Division. The permittee must state what is confidential at the time of submittal.
Any information relating to any secret process,method of manufacture or production,or sales or marketing data which
has been declared confidential by the permittee,and which may be acquired,ascertained,or discovered,whether in any
sampling investigation,emergency investigation,or otherwise,shall not be publicly disclosed by any member,ot£cer,or
employee of the Commission or the Division,but shall be kept confidential. Any person seeking to invoke the protection
of this section shall bear the burden of proving its applicability. This section shall never be interpreted as preventing full
disclosure of effluent data.
10. Fees
The permittee is required to submit payment of an annual fee as set forth in the Water Quality Control Act. Failure to
submit the required fee when due and payable is a violation of the permit and will result in enforcement action pursuant
to Section 25-8-601 et.seq.,C.R.S.1973 as amended.
11. Requiring an Individual CDPS Permit
The Director may require the permittee to apply for and obtain an individual or alternate general CDPS permit if:
a) The discharger is not in compliance with the conditions of this general permit;
• b) Conditions or standards have changed so that the discharge no longer qualifies for a general permit;or
c) Data/information become available which indicate water quality standards may be violated.
"I'he permittee must be notified in writing that an application for an individual or alternate general CDPS permit is
required. When an individual or alternate general CDPS permit is issued to an operator otherwise covered under this
general permit,the applicability of this general permit to that operator is automatically inactivated upon the effective date
of the individual or alternate general CDPS permit.
•
•
MOUNDS
April 8,2009
Colorado Department of Public Health& Environment
Water Quality Control Division
WQCD-Permits-B2
4300 Cherry Creek Drive South
Denver,Colorado 80246-1530
RE: Storm Water General Permit Construction Activity-Modification
COR-03E923; Grover Project Area
Weld County,Colorado
Ladies/Gentlemen:
Petro-Canada Resources(USA)Inc.,(Petro-Canada)is submitting this information to modify the
coverage associated with COR-03E923.The application dated March 6,2009 mistakenly omitted the
location and acreage information associated with the construction of a—25 mile long pipeline. This
information is being prepared as per a phone call between Matt Czahor with the WQCD and our
consultant Kelli Wead with Lesair Environmental,Inc.
The enclosed package includes the updated legal descriptions,total project area acreages,total disturbed
• area acreages,and a detailed map of the Grover Project Area Pipeline. A Storm Water Management Plan
(SWMP)MP)for the Grover Project Area has been developed,but has not been included in this submittal,as
the general permit application states.
If you should have any questions please contact me at(303)350-1180 or you may reach Lesair
Environmental at(303)904-2525.
Sincer ly,
Richard Eggleston
Senior TLM Advisor
Enclosures:
cc: Lesair
99918th Street,Suite 600
• Denver,CO 80202
Phone:303.297.2100
Fax:303.297.7708
Storm Water Location Details
Grover Project Area
Petro-Canada Resources(USA)Inc.
Storm Water Location Details *Amended 4/2009
Field Wide Plan Name: Grover Project Area
Operator: Petro-Canada Resources (USA) Inc. IM
Grover Project Area: 76,875 acres (expanded by 75 acres)
**Each well site will be approximately 5 acres including
access roads and associated flow lines**
Weld County
Township: 12N
• Range: 62W
• Section: 25-29,32-36
• Range: 61 W
• Section: 26-36
Township: 1 IN
• Range: 62W
• Section: 1-5, 8-17, 20-29,33-36
• Range: 6l W
• Section: 1-36
Township: ION
• Range: 62W
• Section: 1-4,9-16,21-33, 34-36
• Range: 61W
• Section: 2-I I, 12, 13, 14-23,26-35
• Range: 60W
• Section: 18-21,27-29,34-36
Township: 9N
• Range: 61W
• Section: 6-9, 16,21-22,26-27,35
• Range: 60W
• Section: 1,2, 12
Township: SN
• Range: 59W
• Section: 1,2, 12
**Locations in bold indicate modification**
•
•
PITROGIIIIDA.
March 6, 2009
Colorado Department of Public Health & Environment
Water Quality Control Division
WQCD-Permits-B2
4300 Cherry Creek Drive South
Denver, Colorado 80246-1530
RE: Storm Water General Permit Construction Activity Applications
Grover Project Area
Weld County,Colorado
Ladies/Gentlemen:
Petro-Canada Resources(USA) Inc., (Petro-Canada)is submitting a Storm Water General Permit
Construction Activity Application for the Grover Project Area.
This is an area wide application that will include construction activities associated with oil&gas wells
such as production facilities and a proposed compressor station. In addition,this will include any pipeline
rights of way segments,access roads or gathering system pipelines located the specified regions in the
Grover Project Area in Weld County.• The enclosed package includes the general permit application, legal descriptions, total project area
acreages,total disturbed area acreages, and a detailed map of the Grover Project Area. A Storm Water
Management Plan(SWMP)MP)for the Grover Project Area has been developed,but has not been included in
this submittal, as the general permit application states.
If you should have any questions please contact me at(303)350-1180 or you may reach Lesair
Environmental at(303)904-2525.
Sincerely,
Richard Eggleston
Senior TLM Advisor
Enclosures:
cc: Lesair
• 999 18th Street,Suite 600
Denver,CO 80202
Phone:303.297.2100
Fax:303.297.7708
GENERAL PERMIT APPLICATION
illt
STORMWATER DISCHARGES For Agency Use Only C O R-0 3
SSOCIATED WITH:
ONSTRUCTION ACTIVITY Date Received: _/__/
Monthnny Year
(Permit No.COR-030000) Billing Code: 09 9B 00 Approved
ALL APPLICANTS MUST FOLLOW PART D OF THE INSTRUCTIONS TO COMPLETE THIS FORM
Please print or type. All items must be completed accurately and in their entirety,or the application will be deemed incomplete
and returned to the applicant. Processing of the application will not begin until all required information is received. Please refer
to the instructions for information about the required items. Original signatures for Items 8 and 9 are required.
I. Name and address of the permit applicant(legally responsible entity):
*Company Name Petro-Canada Resources (USA) Inc.
*Mailing Address 999 18th Street, Suite 600
*City, State and Zip Code Denver, Colorado 80202
*Legally Responsible Person(Application signer)Hal Koerner
*Title Vice President, Engineering&Operations *Phone Number (303)350-1178
Legal Contact E-mail Address Hal.Koerner@Petro-Canada.com
*Local Contact(familiar with facility) Rick Eggleston
*Title Senior TLM Advisor *Phone Number (303)350-1180
Local Contact E-mail Address Richard.Eggleston@Petro-Canada.com
•. Location of the construction site:
*Street Address (or cross streets) **See attached map and legal descriptions**
*City(if unincorporated, so indicate) Grover *Zip Code 80729 *County Weld
*Name of plan,project,or development Grover Project Area
*Latitude/Longitude(approximate center of the site)—use one of the following formats:
Latitude / / Longitude / / (e.g.,39°42'11", 104°55'57")
degrees minutes seconds degrees minutes seconds
-or-
Latitude 40 869 Longitude 104 227 (e.g.,39.703°, 104.933°')
degrees(to 3 decimal places) dcgmcs(to 3 decimal places)
3. *Legal Description or Map
Legal description per Instructions(not metes and bounds):
Subdivision(s) Lot(s) Block(s):
-or-
Map Indicating Site Location/Boundaries
El Maps must be folded to 8%x 11 inches.
4. *Area of the construction site:
Total area of project site(acres) The entire Grover Project Area is approximately 76,800 acres total
Area of project site to undergo disturbance(acres) 38 wellsites; 1 compressor station; 1 pipeline system -300 acres
• Total disturbed area of Larger Common Plan of Development or Sale, if applicable(i.e.,total, including all phases,
filings, lots,and infrastructure not covered by this application) NA
Application-Page 1 of 2 ' REQUIRED ENTRY Revised 9/08
5. Nature of the construction activity:
Check the appropriate box(s)or provide a brief description that indicates the general nature of the construction activities.
• (The full description of activities must be included in the Stormwater Management Plan.)
o Single Family Residential Development
❑ Multi-Family Residential Development
El Commercial Development
ri Oil and Gas Production and/or Exploration(including pad sites and associated infrastructure)
El Highway/Road Development(not including roadways associated with commercial or residential development)
❑ Other,Describe:
6. *Anticipated construction schedule;
03 31 2009 12 31 2009
Construction Start Date: _/__/____ Final Stabilization Date: __/ _/____
month day year month day year
7. *The name of the receiving waters(s). (If discharge is to a ditch or storm sewer,also include the name of the ultimate
receiving water): Crow Creek, Little Crow Creek,Jackson Draw
STOP! A Stormwater Management Plan(see Appendix A)must be completed prior to signing the following
certifications! -Do not mail the Stormwater Management Plan with the application.
8. *Stormwater Management Plan Certification:
"I certify under penalty of law that a complete Stormwater Management Plan,as described in Appendix A of this
• application,has been prepared for my activity. Based on my inquiry of the person or persons who manage the
system,or those persons directly responsible for gathering the information,the Stormwater Management Plan is,to the
best of my knowledge and belief, true, accurate,and complete. I am aware that there are significant penalties for falsely
certifying the completion of said SWMP, including the possibility of fine and imprisonment for knowing violations."
Signature of Legally Responsible Person(submission must include original ink signature) Date Signed
Hal Koerner Vice President of Engineering and Operations
Name(printed) Title
9. *Signature of Applicant
"I certify under penalty of law that I have personally examined and am familiar with the information submitted in this
application and all attachments and that, based on my inquiry of those individuals immediately responsible for obtaining
the information, I believe that the information is true,accurate and complete. I am aware that there are significant
penalties for submitting false information, including the possibility of fine or imprisonment.
"I understand that submittal of this application is for coverage under the State of Colorado General Permit for
Stormwater Discharges Associated with Construction Activity for the entirety of the construction site/project
described and applied for,until such time as the application is amended or the certification is transferred,
inactivated,or expired."
Signature of Legally Responsible Person(submission must include original ink signature) Date Signed
Hal Koerner Vice President of Engineering and Operations
Name(printed) Title
•o not include a copy of the Stormwater Management Plan
o Not Include Payment—An invoice will be sent after the certification is issued.
Application-Page 2 of 2 * REQUIRED ENTRY Revised9/08
Storm Water Location Details
Grover Project Area
• Petro-Canada Resources(USA)Inc.
Storm Water Location Details Fri
Field Wide Plan Name: Grover Project Area RNTR DANA A*
Operator: Petro-Canada Resources (USA) Inc.
Region III Total Area (Southwest): 76,800 acres
**Each well site will be approximately 5 acres including
access roads and associated flow lines**
Weld County
Township: 12N
• Range: 62W
• Section: 25-29,32-36
• Range: 61 W
• Section: 26-36
Township: t 1 N
• Range: 62W
• Section: 1-5, 8-17,20-29, 33-36
• • Range: 61W
• Section: 1-36
Township: ION
• Range: 62W
• Section: 1-4,9-16,21-33,34-36
• Range: 61W
• Section: 2-11, 14-23,26-35
•
Petro-Canada Resources(USA)Inc.
Storm Water Management Plan
Appendix C
• SITE DESCRIPTION INFORMATION
I. General Site Information
Site Name: Dates of Construction
Begin End
Location:
County: Field:
Latitude: Longitude:
Section: I Township: Range:
2. Description of Construction Activity
Construction activities at this site are associated with(check all that may apply):
❑ Well Facility Construction ❑ ROW: Road Construction 0 ROW:Piping Construction.
The estimated area of disturbance will cover approximately(well pad) I acres
Facility information is included in this SWMP? I Y ❑ I N❑
3. Pre-construction Conditions
Is the vegetative cover typical of this area? V 0 I N ❑
If no,please describe:
What is the estimated percent of vegetative ground cover?
4. Surface Water and Drainage Information
The construction area is located in what river basin?
What is the nearest defined drainage that could receive runoff from this project?
• Are there any perennial streams that flow through the project area? Y ❑ N ❑
If yes,what is it called and what size(S,M,
L)?
Are there any intermittent streams in the area? IVO I N ❑
If yes,what is it called and what size(S,M,
L)?
Are there any wetlands in the immediate construction area? 1 )( ❑ IND
If yes,is there any anticipated work in the wetlands areas?
Are there any non-storm water components(springs,irrigation return flow)in the construction area? I Y ❑ I N ❑
If yes,is there any anticipated work in these areas?
6. Best Management Practices(BMPs)
Based on site-specific details listed on this form and the facility location plat,as well as the BMPs selection
information provided in Appendix E of this SWMP,the following BMPs are to be implemented at this site:
6a. During Construction of Well Site
6b. During Construction of Roads
6c. During Construction of Pipelines
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Colorado Department of Public Health& Environment FOR AGENCY USE ONLY
Water Quality Control Division
WQCD-P-B2 REC
• 4300 Cherry Creek Drive South EFF
Denver,Colorado 80246-1530 YEAR MONTH DAY
INACTIVATION NOTICE FOR
CONSTRUCTION STORMWATER DISCHARGE GENERAL PERMIT CERTIFICATION
Please print or type. Form must be filled out completely.
Certification Number: COR-03 (This is a 4 digit number- not 0000)
Permittee(Company)Name:
Permittee Address:
Phone No. (
Site/Facility Name:
Construction Site Address/Location:
County: Contact Person:
Summary of work performed and description of final site stabilization:
•
I certify under penalty of law that by the date of my signature below, all disturbed soils at the identified construction
site have been finally stabilized; all temporary erosion and sediment control measures have been removed;all
construction and equipment maintenance wastes have been disposed of properly; and all elements of the Stormwater
Management Plan have been completed.
I understand that by submitting this notice of inactivation,I am no longer authorized to discharge stormwater associated
with construction activity by the general permit. I understand that discharging pollutants in stormwater associated with
construction activities to the waters of the State of Colorado, where such discharges are not authorized by a CDPS
permit, is unlawful under the Colorado Water Quality Control Act and the Clean Water Act.
I certify under penalty of law that I have personally examined and am familiar with the information submitted herein,
and based on my inquiry of those individuals immediately responsible for obtaining the information,I believe that the
information is true, accurate and complete. I am aware that there are significant penalties for submitting false
information, including the possibility of fine and imprisonment. (See 18 U.S.C 1001 and 33 U.S.C. 1319.)
I also certify that I am a duly authorized representative of the above named company .
• Signature of Permit Applicant(Legally Responsible Party) Date Signed
Name(printed) Title
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• El*bog Wash Well PCR Leasehold C....7;] HBP
.'1 Proposed Well Location HBP 8 TERM 0 2,050 4,100 8,200 12,300 16,400
Grover Proposed Well;
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• Petro-Canada Resources (USA) Inc.
Best Management Practices (BMP's) Manual
TABLE OF CONTENTS
1.0 INTRODUCTION 2
2.0 GENERAL CONSTRUCTION BMPS 3
2.1 Well Site Construction 4
2.2 Road and Access Way Construction 5
2.3 Pipeline and Flowline Construction 6
2.4 Drainage and Drainage Structures 7
3.0 EROSION CONTROL 8
3.1 Interceptor Swale 9
3.2 Diversion Dike 10
3.3 Vegetation 11
3.4 Mulching 12
4.0 SEDIMENT LOSS PREVENTION 13
• 4.1 Silt Fence 14
4.2 Straw Bale Dike 15
4.3 Check Dams 16
4.4 Sandbag Berm 17
5.0 WASTE MANAGEMENT 18
5.1 Solid Waste Management 19
5.2 Hazardous Waste Management 21
PrI
PE1RDCANMA
Prepared by: Prepared for:
LESAIR Environmental, Inc. Petro-Canada Resources(USA)Inc.
• 10394 W.Chatfield Ave.,Ste 100 999 18th Street,Suite 600
Littleton, CO 80127 Denver,CO 80202
April 2009
Petro-Canada Resources(USA)Inc.
Best Management Practices Manual
• BEST MANAGEMENT PRACTICES (BMPs)
1.0 INTRODUCTION
In order to address the requirements of storm water pollution at construction sites, a variety of
techniques should be employed to reduce soil erosion, site sediment loss, and manage
construction-generated waste. This section provided design criteria for a variety of techniques to
address these issues. These techniques, or best management practices (BMPs), consist of both
temporary and permanent solutions to reduce pollution from a construction site.
Many BMPs address onsite soil losses. For construction sites, soil loss, in the form of erosion
and sedimentation, as a result of storm events and wind, constitute the majority of pollution
generated from a construction site. BMPs which address erosion and sediment control are much
more site specific than waste management techniques. Erosion and sediment control BMPs are
dependent upon site slopes, drainage patterns and quantities, and other site-specific conditions.
Waste management consists of"good housekeeping" practices, which are dependent upon the
type of construction and the quantity and type of building materials.
The following provides a method of selecting BMPs applicable to construction sites along with
design criteria for each BMP. BMPs will be applied on a site specific basis and not all BMPs
will be used at each construction site.
• The designer must first use the BMP selection guide to determine BMPs applicable to the site.
The fact sheets following the selection guide detail the design and maintenance requirements,
limitations, and purpose of each design and the techniques. These provide the tools for the
designer to select the appropriate BMPs and locate them onsite to effectively reduce sediment
loss and erosion.
Information is also provided on maintenance of the control devices, as well as what should be
checked during requirement inspections.
•
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Petro-Canada Resources(USA)Inc.
Best Management Practices Manual
• 2.0 GENERAL CONSTRUCTION BMPS
BMPs are not a substitute for proper planning and construction techniques. The following BMPs
are typical construction practices that are implemented by Petro-Canada.
SELECTION GUIDE:
BMPs FOR GENERAL CONSTRUCTION
BMP Name Primary Purpose Rating
Well Site Minimize surface disturbance and effects on Very Effective
Construction other resources, and maintain reclamation
potential of the site.
Road and Access Minimize surface disturbance and effects on Very Effective
Way Construction other resources, and maintain reclamation
potential of the site.
Pipelines and Minimize surface disturbance and effects on Very Effective
Flowlines other resources, and maintain reclamation
potential of the site.
Drainage and Ensure long-term success of the structure and Very Effective
Drainage Structures minimize adverse environmental effects, such
as erosion and sediment production.
•
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Petro-Canada Resources(USA)Inc.
Best Management Practices Manual
• 2.1 Well Site Construction
General Construction BMP: Well Sites
Description To the extent permitted by the geologic target,the locations selected for well sites,tank batteries,
pits,and pumping stations,etc.should be planned so as to minimize long-term disruption of the
surface resources. Design and construction techniques and other practices should be employed
that would minimize surface disturbance and effects on other resources,and maintain reclamation
potential of the site. The following guidelines can be used to assist in meeting these objectives
and reduce the overall impacts from well sites and other construction areas.
Location Well sites should be located on the most level location available that will accommodate the
intended use. The site layout should be oriented to conform to the best topographic situation
given the geologic target and any safety considerations. Steeply sloping locations,which require
deep nearly vertical cuts,and steep fill slopes should be avoided or appropriately mitigated. The
location of the well site should also be reviewed to determine its effects upon the location of the
access road.
Construction Construction procedures must conform to the approved surface use plan of operations. Generally,
all surface soil materials shall be removed and stockpiled. The depth of the topsoil to be removed
and stockpiled should be determined at the predrill inspection and should be located to avoid
mixing with subsurface materials during construction and reclamation. Stockpiles should be
located so wind and water erosion are minimized and reclamation potential is maximized.
Fills should be compacted to minimize the chance of slope failure. If appropriate,terraces may be
used on cut and fill slopes to reduce land impacts,such as length of slope,to prevent excessive
water accumulation and erosion. If excess cut material exists after fill areas have been brought to
grade,the excess material will be disposed of or stockpiled at approved locations. Snow and
frozen soil material will not be used in the construction of fill areas and pits. Run off water from
• off site areas should be diverted away form well site by ditches,waterbars,or terraces above and
below the cut slopes.
The reserve pit should be located in cut material. If this is not possible,at least 50 percent of the
reserve pit should be constructed below original ground level to prevent failure of the pit dike.
Fill dikes should be properly compacted in lifts(i.e.by rubber-tired construction equipment,
sheeps foot roller,etc.). The necessary degree of compaction depends on soil texture and
moisture content.
Pits improperly constructed on slopes may leak along the plane between the natural ground level
and the fill. There is a significant potential for pit failure in these situations. When constructing
impoundments by fill embankment,a keyway or core trench 10-to 12-feet wide should be
excavated to a minimum depth of 2-or 3-feet below the original ground level. The core of the
embankment is then constructed with water impervious-material.
It may be necessary to line reserve pits to prevent contamination of ground water and soil.
Bentonite,plastic,or other synthetic liners are most commonly used. In some environmentally
sensitive areas,self-contained mud systems may be required with the drilling fluids,mud and
cuttings being transported to approved offsite disposal areas.
Maintenance Maintenance activities normally include:blading,surface replacement,spot repairs,slide
removal,brush removal,litter cleanup,weed control,and snow removal.
•
4
Petro-Canada Resources(USA)Inc.
Best Management Practices Manual• 2.2 Road and Access Way Construction
General Construction BMP: Roads and Access Ways
Rationale Special concerns such as steep slopes,erosion hazards,visual resources and other concerns
require special consideration when roads and access ways are involved. In areas of high
environmental sensitivity,special road location,design and construction techniques may be
required. Early contact with appropriate surface owner/manager will provide specific
requirements and identify any special access needs.
Location Road location is the most critical stage for the engineering and environmental success of a road
construction project. The surface and subsurface conditions of a road location largely determine
the cost to survey,design,construct,and maintain a road.
Design Design Requirements(Bureau of Land Management and Forest Service Local Roads):
a. Design speed 15-25 miles per hour
b. Travelway width—minimum 12 feet with turnouts.
c. Recommended minimum horizontal curve radius, 100 feet. Where terrain will not allow
100-foot curve radii,curve widening may be necessary.
d. Normal road gradients of more than 8 percent should be avoided except for pitch grades
(i.e.300 feet or less in length). If terrain conditions cause grades greater than 8 percent to
be required,the SMA should be contacted to obtained approval prior to construction.
e. Turnouts should be designed into all single lane roads(travelways of 12-14 feet).
f. Drainage control shall be ensured over the entire road through the use of drainage dips,
insloping,natural rolling topography,ditch turnouts,or culverts. Culverts,drainage
crossings,and other controls should be designed for a 10-year frequency or greater storm,
with an allowable head of one foot at the pipe inlet.
g. Roadbed culverts should be used to drain inside road ditches when drainage dips are not
feasible.
• h. Vehicle tracking pads consisting of crushed rock should be utilized at all necessary
entrance/exit points for the site.
i. Road design should consider the potential for occasional access of oversized oilfield
vehicles.
Construction a. Construction(Bureau of Land Management and Forest Service Local Roads):
b. Clearing and grubbing will normally be required on all sections of the road. Exceptions
would be allowed in areas of sparse,non-woody vegetation.All clearing and grubbing
should be confined to a specified clearing width,which is usually somewhat wider than
the limits of actual construction(roadway).
c. All soil material and fragmented rock removed in excavation should be used as part of
the construction process. Excess cut material should not be wasted unless specified in an
approved plan.
d. Application of roadbed material should be avoided if the materials or the surface are
frozen or too wet for satisfactory compaction. Equipment should be routed over the layers
of roadbed material already in place to help avoid uneven compaction anywhere along the
travel route.Borrow material should not be used until material from roadway excavation
has been placed in the embankments,unless otherwise permitted. Borrow areas used by
the operator must be approved prior to the start of excavation.
Roadside ditches should conform to the slope,grade,and shape of the required cross-
section without projections of roots,stumps,rocks,or similar debris. Side ditches should
be excavated to a depth of one-foot minimum below finished road surface. Backslope on
the road ditches should not be cut flatter than two to one. Drainage turnout spacing on
these ditches should not exceed 500 feet;slopes greater than 5 percent would require
'closer spacing of turnout furrows(wing ditches or relief ditches).
Maintenance Maintenance activities normally include:blading,surface replacement,dust abatement,spot
repairs,slide removal,ditch cleaning,culvert cleaning,brush removal,litter cleanup,weed
control,and snow removal.
•
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Petro-Canada Resources(USA)Inc.
Best Management Practices Manual
• 2.3 Pipeline and Flowline Construction
General Construction BMP: Pipelines and Flowlines
Rationale Construction techniques and other practices should be employed during pipeline/flowline
construction that would minimize surface disturbance and effects on other resources,and maintain
reclamation potential of the site. The following guidelines can be used to assist in meeting these
objectives and reduce the overall impacts from these construction activities.
Construction Steep hillsides and watercourses should be avoided in the location of pipelines/flowlines.
Flowline routes should take advantage of road locations wherever practicable to minimize surface
disturbance.
Blading of pipeline routes located on gentle topography should be limited to removal and
smoothing of brush and surface irregularities,leaving most of the under story vegetation
undisturbed. When clearing is necessary,the width disturbed should be kept to a minimum.
Bladed materials should be placed back into the cleared route upon completion of construction.
Cut and fills on pipelines should be made only where necessary. Surface soil material should be
stockpiled to the side of the routes where cuts and fills or other surface disturbance occur during
pipeline construction. Surface soil material should be segregated and should not be mixed or
covered with subsurface material. After construction cut and fill slopes may need to be
waterbarred or regraded to conform to the adjacent terrain.
Trenches should be compacted during backfilling.
Pipeline construction should not block,dam,or change the natural course of any drainage.
Suspended pipelines should provide adequate clearance for runoff debris,wildlife,or livestock.
• Maintenance Maintenance activities normally include:Pipeline/flowline right-of-way maintenance to correct
backfill settling and prevent erosion,spot repairs,slide removal,litter cleanup,and weed control.
•
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Petro-Canada Resources(USA)Inc.
Best Management Practices Manual
• 2.4 Drainage and Drainage Structures
General Construction BMP: Drainage and Drainage Structures
Rationale The proper design and construction of structures for the drainage of water from or through the
roadway often contributes the most to the long-term success of the structure and minimizes the
maintenance and adverse environmental effects,such as erosion and sediment production.
Location and The need for drainage structures can be minimized by proper road location. However,adequate
Design drainage is essential for a stable road. A proper drainage system should be the best combination
of various design elements,such as ditches,culverts,drainage dips,crown,in-slope or out-slope,
low-water crossings,subsurface drains,and bridges.
a. Surface Drainage.Surface drainage provides for the interception,collection,and
removal of water from the surface of roads and slope areas. The design may need to
allow for debris passage,mud flows,and water heavily laden with silt,sand,and gravel.
b. Subsurface Road Drainage. Subsurface drainage is provided to intercept,collect,and
remove groundwater that may flow into the base course and subgrade,lower high water
tables,and drain locally saturated deposits or soils.
Types of Proper location and design can provide economical and efficient drainage in many cases.
Drainage However,structural measures are often required to ensure proper and adequate drainage. Some
Structures of the most common structures are drainage dips,ditches,and culverts.
a. Drainage Dips.The primary purpose of a drainage dip is to intercept and remove surface
water from the traveled way and shoulders before the combination of water volume and
velocity begins to erode the surface materials. Spacing of drainage dips depends upon
local conditions such as soil material,grade,and topography.
b. Ditches. The types of ditches normally used are:drainage,trap,interception,and outlet.
• Ditch grades should be no less than 0.5 percent to provide positive drainage and to
avoid siltation.
c. Road Crowning. Roads that use crowning and ditching are common and can be used
with all road classes. This design provides good drainage of water from the surface of
the road. Drainage of the inside ditch and sidehill runoff is essential if the traveled way
is to be kept dry and passable during wet weather. Snow removal becomes a simple
task for common road maintenance equipment. Because the roadbed is raised,wind
often blows the snow off the travelway.
d. Culverts. Culverts are used in two applications on oil and gas access roads;(t) in
streams and gullies to allow normal drainage to flow under the traveled way,and(2)to
drain inside road ditches. All culverts should be laid on natural ground or at the original
elevation of any drainage crossed. Culverts should be placed on a 3 percent minimum
grade;reverse camber is not allowed. The outlet of all culverts should extend at least
one foot beyond the toe of any slope. Excavation,bedding,and backfilling of culverts
should be conducted according to requirements of the surface owner/manager and good
engineering practices.
Some additional drainage structures,which may be employed,are ditch relief culverts,bridges&
major culverts,low water crossings,and subdrainage systems.
•
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Petro-Canada Resources(USA)Inc.
Best Management Practices Manual
• 3.0 EROSION CONTROL
These BMPs protect the soil before erosion occurs. They are primarily used around areas of
construction to either limit the flows across the site, or limit the erosion in areas disturbed but not
active.
SELECTION GUIDE:
BMPs FOR EROSION CONTROL
BMP Name Primary Purpose Rating
Interceptor Swale Route flows around areas of disturbance Very Effective
Diversion Dike Route flows around areas of disturbance Very Effective
Vegetation Provide natural soil protection through Very Effective
seeding, hydro mulch or phasing
Mulching Protect disturbed soil with a layer of hay Very Effective
•
•
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Petro-Canada Resources(USA)Inc.
Best Management Practices Manual
• 3.1 Interceptor Swale
Erosion Control BMP: Interceptor Swale
Description An interceptor swale is a small v-shaped or parabolic channel,which collects runoff and directs it
to a desired location. It can either have a natural grass lining or,depending on slope and design
velocity,a protective lining of erosion matting,stone or concrete.
Primary Use The interceptor can either be used to direct sediment-laden flow from the disturbed areas into a
controlled outlet or to direct`clean'runoff around disturbed areas. Since the swale is easy to
install during early grading operations,it can serve as the first line of defense in reducing runoff
across disturbed areas. As a method of reducing runoff across the disturbed construction area,an
interceptor swale reduces the requirement of structural measures to capture sediment from runoff
downstream of the disturbed area.Runoff can be directed to a sediment basin or a protected inlet
as opposed to long runs of silt fence,hay bales or other filtration methods.
Based on site topography,swales can be effectively used in combination with diversion dikes.
Applications Common applications for interceptor swales include roadway projects,site development projects
with substantial offsite flow,and sites with large areas of disturbance. It can be used in
conjunction with diversion dikes to intercept flows. Temporary swales can be used throughout
the project to direct flows from staging areas,storage and fueling areas,and specific areas of
construction. Note that runoff which crosses disturbed areas,or is directed in unstable swales,
must be routed into a treatment BMP such as a sediment basin.
Grass lined swales are an effective permanent stabilization technique. The grass effectively
filters both sediment and other pollutants while reducing velocity.
Design Criteria Maximum depth of flow in the swale shall be 1.5 foot based on 2-year design storm
peak flow. Positive overflow must be provided to accommodate larger storms.
• • Side slopes of the swale shall be 3:1 or flatter.
• The minimum required channel stabilization for grades less than 2 percent and
velocities less than 6 feet per second maybe grass,erosion control mats or mulching.
For grades in excess of 2 percent or velocities exceeding 6 feet per second,stabilization
in the form of high velocity erosion control mats,3"layer of crushed stone or riprap is
required. Velocities greater than 8 feet per second will require approval by the local
jurisdiction and is discouraged.
• Check dams can be used to reduce velocities in steep swales(See Appendix E,Section
3.7).
. Interceptor swales must be designed for flow capacity based on Manning's Equation to
insure a proper channel section. Alternate channel sections may be used when properly
designed and accepted.
. Consideration must be given to the possible outlet.
. Swales must maintain positive grade to an acceptable outlet.
Limitations Interceptor swales must be stabilized quickly upon excavation so as not to contribute to the
erosion problem they are addressing.
Swales may be unsuitable to the site conditions(too flat or steep).
Limited flow capacity for temporary swales. For permanent,the 1.5-foot maximum depth can be
increased as long as provisions for public safety are implemented.
Maintenance Inspection must be made after each significant(0.5"or greater)rain event to locate and repair
Requirements any damage to the channel or to clear debris or other obstructions so as not to diminish flow
capacity. Damages from normal construction activities or storms such as tire ruts,or disturbance
of stabilization of the swale,shall be repaired as soon as practical.
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Best Management Practices Manual
3.2 Diversion Dike
Erosion Control BMP: Diversion Dike
Description A diversion dike is a compacted soil mound,earthen berm,or waddle which redirects runoff to a
desired location. The dike is typically stabilized with natural grass for low velocities or with
stone or erosion control mats for higher velocities.
Primary Use The diversion dike is normally used to intercept offsite flow upstream of the construction area
and direct the flow around the disturbed soils. It can also be used down stream of the
construction area to direct flow into a sediment reduction device such as a sediment basin or
protected inlet. The diversion dike serves the same purpose and,based on the topography of the
site,can be used in combination with an interceptor.
Applications By intercepting runoff before it has a chance to cause erosion,diversion dikes are very effective
in reducing erosion at a reasonable cost. They are applicable to a large variety of projects
including site developments and linear projects such as roadways and pipeline construction.
Diversion dikes are normally used as perimeter controls for construction sites with large amounts
of offsite flow from neighboring properties. Used in combination with swales,the diversion dike
can be quickly installed with a minimum of equipment and cost,using the swale excavation as
the dike. No sediment removal technique is required prior to crossing disturbed areas if the dike
is properly stabilized and the runoff is intercepted.
Significant savings in structural controls can be realized by using diversion dikes to direct flow
to a central area,such as a sediment basin or other sediment reduction structure if the runoff
crosses disturbed areas.
Design Criteria The maximum contributing drainage area should be 10 acres or less depending on site
conditions.
. Maximum depth of flow at the dikes shall be 1 foot for 2 year design storm.
• The maximum width of the flow at the dikes shall be 20 feet.
• Side slopes of the diversion dikes shall be 3:1 or flatter.
. Minimum width of the embankment at the top shall be 2 feet.
. Minimum embankment height shall be 18 inches as measured from the toe of the slope
on the upgrade side of the berm.
. For velocities of less than 6 feet per second,the minimum stabilization for the dike and
adjacent flow areas is grass,erosion control mats,or mulch. For velocities greater than
6 feet per second,stone stabilization or high velocity erosion control mats should be
used. Velocities greater than 8 feet per second must be approved by the local
jurisdiction.
. The dikes shall remain in place until all disturbed areas,which are protected by the dike,
are permanently stabilized unless other controls are put into place to protect the site.
• Flow line at dike shall have a positive grade to drain to a controlled outlet.
Limitations Compacted earth dikes require stabilization immediately upon placement so as not to contribute
to the problem they are addressing.
The diversion dike can be a hindrance to construction equipment moving on the site,therefore
their locations must be carefully planned prior to installation.
Maintenance Dikes must be inspected on a weekly basis and after each significant rainfall(>0.5 in)to
Requirements determine if silt is building up behind the dike,or if erosion is occurring on the face of the dike.
Silt shall be removed in a timely manner. If erosion is occurring on the face of the dike,the
slopes of the face shall either be stabilized through mulch or seeding or the slopes of the face
shall be reduced.
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Petro-Canada Resources(USA)Inc.
Best Management Practices Manual
• 3.3 Vegetation
Erosion Control BMP: Vegetation
Description Vegetation,as a Best Management Practice,is the sowing of annual grasses,small grains or
legumes to provide interim and permanent vegetation stabilization for disturbed areas.
Primary Use Vegetation is used as a temporary or permanent stabilization technique for areas disturbed by other
structures. As a temporary control,vegetation is used to stabilize stockpiles and barren areas,
which are inactive for long periods of time. As a permanent control,grass and other vegetation
provide for good protection for the soil along with some filtering for overland runoff. Subjected to
acceptable runoff velocities,vegetation can provide a good method of permanent storm water
management as well as a visual amenity to the site.
Other BMPs may be required to assist in the establishment of vegetation. These other techniques
include erosion control matting, swales and dikes to direct flow around newly seeded areas and
proper grading to limit runoff velocities during construction.
Applications Vegetation techniques can and should apply to every construction project with few exceptions.
Vegetation effectively reduces erosion in swales,stockpiles,berms,mild to medium slopes and
along roadways. Vegetation strips can provide some protection when used as a perimeter control
for utility and site development construction.
In many cases,the initial cost of temporary seeding may be high for stockpiles or other barren areas
subject to erosion yet inactive. This initial cost should be weighed with the amount of time the area
is to remain inactive,since maintenance cost for vegetated areas is much less than most structural
controls.
Design Surface Preparation
Criteria • Interim or final grading must be completed prior to seeding,minimizing all steep slopes.
• • Install all necessary erosion structures such as dikes,swales,diversions,etc.,prior to
seeding.
• Groove or furrow slopes steeper than 3:1 on the contour line before seeding.
. Provide 4 to 6 inches of topsoil over rock,gravel,or otherwise unsuitable soils.
• Seedbed should be well pulverized,loose and uniform.
Plant Selection,Fertilization and Seeding
. Use only high quality,USDA certified seed.
• Use an appropriate species or species mixture adapted to local climate,soil conditions and
season according to the following table. Consult with the local office of the U.S. Soil
Conservation Service(SCS)or Engineering Extension service as necessary for the
selection of proper species and application technique in this area.
• Seeding rate should be in accordance with local land use requirements.(See SWPPP,
Table l)
• Fertilizer shall be applied according to the manufacturer's recommendation with proper
spreader equipment.Typical application rate for 10-10-10 grade fertilizer is 700-1000
lb/acre. DO NOT OVER APPLY FERTILIZER.
• If hydro seeding is used,do not mix seed and fertilizer more than 30 minutes before
application.
• Evenly apply seed using cyclone seeder,seed drill,or hydro seeder.
• Provide adequate water to add in establishment of vegetation.
• Use appropriate mulching techniques where necessary.
Limitations Vegetation is not appropriate for areas subjected to heavy pedestrian or vehicular traffic. As a
temporary technique,vegetation may be costly when compared to other techniques.
Vegetation is not appropriate for rock,gravel or course grained soils unless 4 to 6 inches of topsoil
is applied.
Maintenance Protect newly seeded areas from excessive runoff and traffic until established. A watering and
Requirements fertilizing schedule will be required as part of the SWPPP to assist in the establishment of the
• vegetation.
11
Petro-Canada Resources(USA)Inc.
Best Management Practices Manual
• 3.4 Mulching
Erosion Control BMP: Mulching
Description Mulching is the application of a layer of chopped straw,hay,or other material,which is spread
uniformly over barren areas to reduce the effects of erosion form rainfall. Types of mulch
include organic materials,straw,wood chips,bark or other fibers,decomposed granite,and
gravel. Mulch also comes in prepackaged forms using straw,hay,or other materials with organic
and inorganic binding systems.
Primary Use Mulch is used to temporarily and/or permanently stabilize clear or freshly seeded areas. It
protects the soil from erosion and moisture loss by leasing the effects of wind,water,and
sunlight. It also decreases the velocity of sheet flow,thereby reducing the volume of sediment-
laden water flow leaving the mulched area.
Applications Mulch may be used on any construction-related disturbed area for surface protection including:
• Freshly seeded or planted areas;
. Areas at risk due to the time period being unsuitable for growing vegetation;or
. Areas that are not conducive to seeding or planting.
Design Criteria Mulch may be used by itself or in combination with netting or other anchors to promote
soil stabilization.
. Several manufacturers provide organic mulch with an attached netting to simplify
installation. Installation requirements should adhere to manufacturer's specifications
and requirements.
. Choice of mulch depends largely on slope,climate,and soil type in addition to
availability of different materials. Straw and hay are the recommended choice due to
their availability and biodegradability.
. Mulch should be applied in an even and uniform manner where concentrated water flow
is negligible.
• For areas using straw mulch and having a slope greater than 3-5%,anchoring of the
mulch is required.
Limitations Mulches are subject to removal by wind or water under severe climatic conditions. Mulches
lower the soil temperature,which may result in longer seed germination period.
Maintenance Mulched areas must be inspected on a weekly basis,and after significant rainfall,for thin or bare
Requirements spots caused by natural decomposition or weather related events. Mulch in high traffic areas
should be replaced on a regular basis to maintain uniform protection.
•
12
Petro-Canada Resources(USA)Inc.
Best Management Practices Manual
• 4.0 SEDIMENT LOSS PREVENTION
Construction activities normally result in disturbance on the site due to grading operations,
clearing, and other operations. Erosion will occur in these disturbed areas and BMPs must be
used to contain the sediment from these disturbed areas. The following techniques reduce soil
loss from the site by retaining the soil through sedimentation or filtration of the runoff.
SELECTION GUIDE:
BMPs FOR SEDIMENT LOSS PREVENTION
BMP Name Primary Purpose Rating
Silt Fence Slow and filter runoff to retain sediment Effective
Straw Bales Slow and filter runoff to retain sediment Effective
Check Dams Provides minor detention and retention of Effective
sediment for small swales and concentrated
flows
Sandbag Berm Provide sedimentation and filtration for Effective for severe
runoff under concentrated conditions in applications
• creeks, channels and drainage swales
•
13
Petro-Canada Resources(USA)Inc.
Best Management Practices Manual
• 4.1 Silt Fence
Sediment Loss Prevention BMP: Silt Fence
Description A silt fence consists of geotextile fabric supported by poultry netting or other backing stretched
between either wooden or metal posts with the lower edge of the fabric securely embedded in the
soil. The fence is typically located downstream of disturbed areas to intercept runoff in the form
of sheet flow. Silt fence provides both filtration and time for sedimentation to reduce sediment
and it reduces the velocity of the runoff. Properly designed silt fence is economical since it can
be relocated during construction and reused on other projects.
Primary Use Silt fence is normally used as a perimeter control for downstream of disturbed areas. It is only
feasible for non-concentrated,sheet flow conditions.
Applications Silt fence is an economical means to treat overland,non-concentrated flows for all types of
projects. Silt fences are used as perimeter control devices for both site developments and linear
(roadway)type projects. They are most effective with coarse to silty soil types. Due to the
potential of clogging,silt fence should not be used with clay soil types.
In order to reduce the length of the silt fence, it can be placed adjacent to the downstream side of
the construction activities.
Design Criteria • Fences are to be constructed along a line of constant elevation(along a contour line),
where possible.
• Maximum slope adjacent to the fence is 1:1.
▪ Maximum distance of flow to the silt fence shall be 200 feet.
• Maximum concentrated flow to silt fence shall be 1 CFS,per 20 feet of fence.
• If 50%or less of the soil,by weight,passes the U.S. Standard sieve No.200,Select the
Equivalent Opening Size(EOS)to retain 85%of the soil.
. Maximum EOS shall be 70(#70 sieve).
• Minimum EOS shall be 100(#100 sieve).
▪ if 85%or more of the soil,by weight,passes the U.S. Standard sieve No.200,silt
fences shall not be used due to clogging.
. Sufficient room for the operation of sediment removal equipment shall be provided
between the silt fence and other obstructions in order to properly maintain the fence.
• The ends of the fence shall be turned upstream to prevent bypass of storm water.
Limitations Minor ponding will occur at the upstream side of the silt fence resulting in minor localized
flooding.
Fences which are constructed in swales or low areas subject to concentrated flow may be
overtopped resulting in failure of the filter fence. Silt fences subject to areas of concentrated
flow(waterways with flows> 1 cfs)are not acceptable.
Silt fence can interfere with construction operations;therefore planning of access routes onto the
site is critical.
Silt fence can fail structurally under heavy storm flows,creating maintenance problems and
reducing the effectiveness of the system.
Maintenance Inspections should be made on a regular basis,especially after a large storm event. If the fabric
Requirements becomes clogged,it should be cleaned or if necessary,replaced.
Sediment should be removed when it reaches approximately one-half the height of the fence.
•
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Best Management Practices Manual
• 4.2 Straw Bale Dike
Sediment Loss Prevention BMP: Straw Bale Dike
Description A straw bale dike is a temporary barrier constructed of straw bales anchored with wood posts,
which is used to intercept sediment-laden runoff generated by small-disturbed areas. The hay
bales can serve as both a filtration device and a dam/dike device to treat and redirect flow. Bales
can consist of hay or straw in which straw is defined as best quality straw from wheat, oats or
barley, free of weed and grass seed and hay is defined as straw, which includes weed and grass
seed.
Primary Use A straw bale dike is used to trap sediment-laden storm runoff from small drainage areas with
relatively level grades, allowing for reduction of velocity thereby causing sediment to settle out.
Applications Straw bale dikes are used to treat flow after it leaves a disturbed area on a relatively small (<acre)
site. Due to the limited life of the hay bale, it is cost effective for small projects of a short
duration. The limited weight and strength of the hay bales makes it suitable for small, flat (<2
percent slope) contributing drainage areas. Due to the problems with the straw degradation and
the lack of uniform quality in hay bales, their use is discouraged except for small residential
applications.
Straw bales can also be used as check dams (See Appendix A, Section 3.2) for small
watercourses such as interceptor swales and borrow ditches. Due to the problems in securely
anchoring the bales, only small watercourses can effectively use hay bale check dams.
Design Criteria • Straw bale dikes are to be constructed along a line of constant elevation (along a contour
line).
• Straw bale dikes are suitable only for treating sheet flows across grades of 2% or flatter.
• Maximum contributing drainage area shall be 0.25 acre per 100 linear feet of dike.
• Maximum distance of flow to dike shall be 100 feet.
Dimensions for individual bales shall be 30 inches minimum length, 18 inches
minimum height, 24 inches minimum width and shall weigh no less than 50 pounds
when dry.
• Each straw bale shall be placed into an excavated trench having a depth of 4 inches and
a width just wide enough to accommodate the bales themselves.
• Straw bales shall be installed in such a way that there is no space between bales to allow
for any kind of seepage.
• Individual bales should be held in place by no less than two wood or steel stakes driven
a minimum distance of 6 inches into undisturbed ground, with the first stake driven at
an angle toward the previously installed bale.
• The ends of the dike shall be turned upgrade to prevent bypass of storm water.
• Place bales on sides such that bindings are not buried.
Limitations Due to a short effective life caused by biological decomposition, straw bales must be replaced
after a period of no more than 3 months. During the wet and warm seasons, however, they must
be replaced more frequently as is determined by periodic inspections, for structural integrity.
Straw bale dikes are not recommended for use with concentrated flows of any kind except for
small flows in which they can service as a check dam.
The effectiveness of straw bales in reducing sediment is very limited. Improperly maintained,
straw bales can be a negative impact on the water quality of the runoff.
Maintenance Straw bales shall be replaced if there are signs of degradation, such as straw located down stream
Requirements from the bales, structural deficiencies due to rotting straw in the bale, or other signs of
deterioration. Sediment should be removed from behind the bales when it reaches a depth of
_ approximately 6 inches. If the bales become clogged, they should be replaced immediately.
•
15
Petro-Canada Resources (USA) Inc.
Best Management Practices Manual• 4.3 Check Dams
Sediment Loss Prevention BMP: Check Dams
Description Check darns are small barriers consisting of straw bales, rock, or earth berms placed across a
drainage swale or ditch. They reduce the velocity of small concentrated flows, provided a
limited barrier for sediment and help disperse concentrated flows, reducing potential erosion.
Primary Use Check dams are used for long drainage swales or ditches in which permanent vegetation may not
be established and erosive velocities are present. They are typically used in conjunction with
other techniques such as inlet protection, riprap, or other sediment reduction techniques. Check
dams provide limited treatment. They are more useful in reducing flow to acceptable levels for
other techniques.
Applications Check dams are typically used early in construction in swales for long linear projects such as
roadways. They can also be used in short swales with a steep slope to reduce unacceptable
velocities.
Design Criteria Check dams should be placed at a distance and height to allow small pools to form
between each one. Typically, dam height should be between 18" and 36". Dams should
be spaced such that the top of the downstream dam should be at the same elevation as
the toe of the upstream dam.
• See design criteria for straw bales, sand bag berms, etc. for specific design criteria.
Maximum allowable flow shall be based on the specific technique utilized and the
velocity of flow.
• Major flows (greater than 2 year design storm) must pass the check dam without
causing excessive upstream flooding.
• Check dams should be used in conjunction with other sediment reduction techniques
prior to releasing flow offsite.
Limitations Minor ponding will occur upstream of the check dams.
• For heavy flows or high velocity flows, extensive maintenance or replacement of the dams will
be required.
Check dams are not a total treatment technique.
Maintenance Maintenance of the dams should adhere to the maintenance requirements of the management
Requirements practice used for the dam.
•
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Best Management Practices Manual
• 4.4 Sandbag Berm
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Erosion Control BMP: Sandbag Berm
Description Sandbag berms consist of stacked sandbags installed across a watercourse to direct flow
downstream of disturbed areas. There are overflow pipes located in the top of the berm to allow
controlled outflow of water after sedimentation has occurred.
Primary Use A sandbag berm is a temporary sediment control method that addresses the problem of
construction in creeks, channels and other watercourses that carry a constant flow and is
subjected to high, concentrated flows. A sandbag berm can also be used to create a small
sedimentation pond prior to the completion of a permanent detention basin.
Sandbag berms can be used as check dams to temporary swales or borrow ditches.
Sandbag berms are not suitable for typical perimeter controls where sheet flow is prevalent.
Applications During utility or any type of construction in channels or stream beds, sandbag berms can be used
as check dams across channels or stream beds, sandbag berms can be used as check dams across
channels, serve as a barrier for utility trenches or even provide a temporary channel crossing for
construction equipment without seriously affecting stream conditions. Sandbag berms can also
be installed parallel to the road, providing a corridor of sediment control similar to that provided
by a silt fence or hay bales, with the exception that a sandbag dike is capable of controlling much
higher flows and is much more durable. For site construction sandbag berms can be used to
divert or direct flow or create a temporary sediment basin with the added dimension of being able
to be moved to accommodate changes in construction much more easily than compacted earth
berms.
Design Criteria • Dikes are to be constructed along level contours for use as perimeter control devices.
• Maximum flow through rate shall be 0. 1 CFS per square foot of berm surface.
• • Minimum height shall be 18 inches.
• Minimum width of the berm shall be 18 inches at the top and 48 inches measured at the
bottom.
• Maximum side berms shall be 2: 1 .
• Sandbags shall consist of polypropylene, polyethylene or polyamide woven fabric with
a minimum unit weight of 4 ounces per square yard, a mullen burst strength of 300 psi
minimum and ultraviolet stability exceeding 70 percent, and shall be filled with coarse
sand or pea gravel.
• 4" diameter SDR-35 or greater PVC pipe segments approximately 24 inches in length
shall be used immediately below the top layer of sandbags to allow for overflow of the
berm.
• For severe velocities or high flows, woven mesh wire can be used to maintain the
integrity of the berm.
• Sufficient room for the operation of sediment removal equipment shall be provided
between the berm and other obstructions in order to properly remove sediment.
• The ends of the berm shall be turned upgrade or shall tie into natural grades to prevent
bypass of storm water.
Limitations • Sandbag berms are a costly, labor-intensive technique, which is suitable only for areas
subjected to high concentrated flows. The permeability of the berms makes it
unsuitable for low flow, perimeter conditions.
• Ponding will occur directly upstream from the berm creating the possibility of a
flooding concern, which should be considered prior to its placement.
• For sandbag berms located in high flow areas such as creeks, the potential for berm
damage during high flow increases the requirement for maintenance.
Maintenance Inspections should be made on a daily basis and after each rain event. The sandbags shall be
Requirements reshaped or replaced as needed during the inspection. Silt should be removed when it reaches a
depth of six (6) inches. In addition, regular inspections should be made on the PVC pipe
segments to assure clear flow.
•
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Petro-Canada Resources (USA) Inc.
Best Management Practices Manual
5.0 WASTE MANAGEMENT
These techniques will be used on the majority of construction projects due to their general
application of reducing waste from construction activities. They form the basis of general
housekeeping procedures, which should be followed during construction.
SELECTION GUIDE:
BMPs FOR WASTE MANAGEMENT
Primary Purpose Rating
BMP Name
Solid Waste Techniques for management of paper, packaging, Very Effective
Management general building materials, etc.
Hazardous Waste Management of paints, chemicals, fertilizer, oil Very Effective
Management and grease, etc.
•
•
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Petro-Canada Resources (IISA) Inc.
Best Management Practices Manual
5.1 Solid Waste Management
Waste Mana&ement BMP: Solid Waste Management
Description Large volumes of solid waste are often generated at construction site including: packaging,
pallets, wood waste, concrete waste, soil, electrical wiring, cuttings, and a variety of other
materials. The solid waste management practice lists techniques to minimize the potential of
storm water contamination from solid waste through appropriate storage and disposal practices.
Primary Use These practices should be part of all construction practices. By limiting the trash and debris on
site, storm water quality is improved along with reduced clean up requirements at the completion
of the project.
Applications The solid waste management practice for construction sites is based on proper storage and
disposal practices by construction workers and supervisors. Key elements of the program are
education and modification of improper disposal habits. Cooperation and vigilance is required
on the part of supervisors and workers to ensure that the recommendations and procedures are
followed. Following are lists describing the targeted materials and recommended procedures:
Targeted Solid Waste Materials
• Paper and cardboard containers • Shingle cuttings and waste
• Plastic packaging • Roofing tar
• Styrofoam packing and forms • Steel (cuttings, nails, rust residue)
• Insulation materials (non-hazardous) • Gypsum board cuttings and waste
• Wood pallets • Sheathing cuttings and waste
• Wood cuttings • Miscellaneous cutting and waste
• Pipe and electrical cuttings • Food waste
• Concrete, brick, and mortar waste • Demolition waste
Design Criteria Storage Procedures
• • Wherever possible, minimize production of solid waste materials.
• Designate a foreman or supervisor to oversee and enforce proper solid waste
procedures.
• instruct construction workers in proper solid waste procedures.
• Segregate potentially hazardous waste from non-hazardous construction site debris.
• Keep solid waste materials under cover in either a closed dumpster or other enclosed
trash container that limits contact with rain and runoff.
• Store waste material away from drainage ditches, swales and catch basins.
▪ Do not allow trash containers to overflow.
▪ Do not allow waste materials to accumulate on the ground.
• Prohibit littering by workers and visitors.
▪ Police site daily for litter and debris.
• Enforce solid waste handling and storage procedures.
Disposal Procedures
• If feasible, segregate recyclable wastes from non-recyclable waste materials and dispose
of properly .
• General construction debris may be hauled to a licensed construction debris landfill
(typically less expensive than sanitary a landfill).
• Use waste facilities approved by local jurisdiction.
• Runoff which comes into contact with unprotected waste shall be directed into structural
treatment such as silt fence to remove debris.
•
19
Petro-Canada Resources (USA) Inc.
Best Management Practices Manual
Waste Management BMP: Solid Waste Management, Cont'd
g g
Design Criteria, Education
Cont'd • Educate all workers on solid waste storage and disposal procedures.
• Instruct workers in identification of solid waste and hazardous waste.
• Have a regular meeting to discuss and reinforce disposal procedures (incorporate in
regular safety seminars).
• Clearly mark on all solid waste containers which materials are acceptable.
Quality Control
. Foreman and/or construction supervisor shall monitor on-site solid waste storage and
disposal procedures.
• Displine workers who repeatedly violate procedures.
Requirements
. Job-site waste handling and disposal education and awareness program.
• Commitment by management to implement and enforce Solid Waste Management
Program.
• Compliance by workers.
• Sufficient and appropriate waste storage containers.
• Timely removal of stored solid waste materials.
• Possible modest cost impact for additional waste storage containers.
. Small cost impact for training and monitoring.
• Minimal overall cost impact.
Limitation Only addresses non-hazardous solid waste.
One part of a comprehensive construction site management program.
•o
•
1111
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Petro-Canada Resources (USA) Inc.
Best Management Practices Manual
5.2 Hazardous Waste Management
Waste Management BN1P: Hazardous Waste Management
Description The hazardous waste management BMP addresses the problem of storm water polluted with
hazardous waste through spills or other forms of contact. The objective of the Management
Program is to minimize the potential of stormwater contamination from common construction
site hazardous wastes through appropriate recognition, handling, storage and disposal practices.
It is not the intent of this Management Program to supercede or replace normal site assessment
and remediation procedures. Significant spills and/or contamination warrant immediate response
by trained professionals. Suspected job-site contamination should be immediately reported to
regulatory authorities and protective actions taken. The General Permit requires reporting of
significant spills to the National Response Center (NRC) at (800) 424-8802.
Primary Use These management practices along with applicable OSHA and EPA guidelines should be
incorporated at all construction sites, which use or generate hazardous wastes. Many wastes such
as fuel, oil, grease, fertilizer and pesticide are present at most construction sites.
Installation, The hazardous waste management techniques presented here are based on proper recognition,
Application, handling, and disposal practices by construction workers and supervisors. Key elements of the
and Disposal management program are education, proper disposal practices, as well as provisions for safe
Criteria storage and disposal. Following are lists describing the targeted materials and recommended
procedures:
Targeted Hazardous Waste Materials
• Paints Greases
• Solvents • Roofing tar
• Stains • Pesticides
• • Wood Preservatives Fuels & lube oils
• Cutting oils • Lead based paints (Demolition)
Storage Procedures
▪ Wherever possible, minimize use of hazardous materials.
. Minimize generation of hazardous waste from non-hazardous construction site debris.
• Segregate potentially hazardous waste from non-hazardous construction site debris.
• Designate a foreman or supervisor to oversee hazardous materials handling procedures.
• Keep liquid or semi-liquid hazardous waste in appropriate containers (closed drums or
similar) and under cover.
• Store waste materials away from drainage ditches, swales and catch basins.
• Use containment berms in fueling and maintenance areas and where the potential for
spills is high.
• Ensure that adequate hazardous waste storage volume is available.
• Ensure that hazardous waste collection containers are conveniently located.
• Do not allow potentially hazardous waste materials to accumulate on the ground.
. Enforce hazardous waste handling and disposal procedures.
. Clearly mark on all hazardous waste containers which materials are acceptable for
container.
Disposal Procedures
• Regularly schedule hazardous waste removal to minimize on-site storage.
• Use only reputable, licensed hazardous waste haulers.
•
21
Petro-Canada Resources (USA) Inc.
Best Management Practices Manual• BMP: Hazardous Waste Management,Waste Managementg , Cont'd
Installation, Education
Application, Instruct workers in identification of hazardous waste.
and Disposal • Educate workers of potential dangers to humans and the environment from hazardous
Criteria, Cont'd wastes.
• Instruct workers on safety procedures for common construction site hazardous wastes.
• Educate all workers on hazardous waste storage and disposal procedures.
. Have regular meetings to discuss and reinforce identification, handling and disposal
procedures (incorporate in regular safety seminars).
• Establish a continuing education program to indoctrinate new employees.
Quality Assurance
• Foreman and/or construction supervisor shall monitor on-site hazardous waste storage
and disposal procedures.
• Educate and if necessary, discipline workers who violate procedures.
• Ensure that the hazardous waste disposal contractor is reputable and licensed.
Requirements
• Job-site hazardous waste handling and disposal education and awareness program.
. Commitment by management to implement hazardous waste management practices.
• Compliance by workers.
. Sufficient and appropriate hazardous waste storage containers.
. Timely removal of stored hazardous waste material.
Costs
• Possible modest cost impact for additional hazardous storage containers.
• Small cost impact for training and monitoring.
• • Potential cost impact for hazardous waste collection and disposal by licensed hauler —
actual cost depends on type of material and volume.
Limitations This practice is not intended to address site-assessments and pre-existing contamination.
Major contamination, large spills and other serious hazardous waste incidents require immediate
response from specialists.
Demolition activities and potential pre-existing materials, such as asbestos, are not addressed by
this program. Site specific information on plans is necessary.
Contaminated soils are not addressed.
One part of a comprehensive construction site waste management program.
•
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