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CITY OF ARVADASITE DEVELOPMENT PERMIT (SDP)

STORMWATER MANAGEMENT PLAN TEMPLATE

Revised January 22, 2019

This template is provided for use when developing a Stormwater Management Plan (SWMP) for construction activities in the City of Arvada after April 1, 2019 and is based on the CDPS General Permit for Stormwater Discharges Associated with Construction Activities issued on November

1, 2018, effective April 1, 2019. The use of this template is not required.

This template has been developed to provide guidance on preparing a Stormwater Management Plan (SWMP). In all cases the permittee must modify this template to provide site-specific information. Users of the template are advised to compare their SWMPs, whether prepared from this template or not, with the requirements of the Colorado Department of Public Health and Environment (CDPHE) Colorado Discharge Permit System (CDPS) General Permit for Stormwater Discharges Associated with Construction Activities COR-400000 (Stormwater Construction Permit) and City of Arvada requirements.

The City has developed this template to address stormwater quality management for construction activities. During construction, exposed soil is vulnerable to erosion by water and wind. Eroded soil impacts water resources by affecting water quality and causing the siltation of aquatic habitat for fish and other desirable species. Eroded soil also necessitates maintenance and/or repair of storm drains and conveyances (swales or ditches) and the dredging of lakes. In addition, clearing and grading during construction causes the loss of native vegetation that stabilizes soils and provides terrestrial habitat. Managing erosion and sediment transport during construction and establishing good vegetative cover or other stable cover following construction is important for protection of water resources from excessive sediment and is part of providing a healthy living environment for citizens of Arvada. In addition to erosion and sediment, the SWMP addresses other potential pollutants associated with construction activities (fuel, materials, waste locations, etc.).

This template has been set up to provide the recommended SWMP format in regular text and text the user must add and customize based on site-specific information is in blue italics.

Disclaimer: This document has been created in an effort to cover permit requirements. It is ultimately the Permittee’s responsibility to complete, insert, update, modify, delete or add site specific information to comply with federal, state and local regulations.

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Construction Stormwater Management Plan (SWMP) for Project Nameand Project Address

Prepared for Insert information

Date of SWMP Preparation Insert information

Prepared by SWMP Design Firm or Entity

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1. INTRODUCTION

The intent of the Stormwater Management Plan (SWMP) is to:

Sample language: minimize water pollution by providing a plan to protect storm drain inlets, waterways, and other conveyance systems during construction activities from potential pollutants associated with, but not limited to, clearing, grading, utility construction, excavation, demolition, installation of new or improved haul and access roads, staging areas, stockpiling, borrow areas, millings/grinding operations, concrete saw water, waste materials such as concrete washout.

This SWMP was prepared in accordance with good engineering, hydrologic and pollution control practices. Changes or additions may be required to address changes in conditions at the project. If such changes are made, this SWMP will be updated accordingly. This SWMP will be implemented as written and updated from commencement of construction activity until final stabilization is achieved. This SWMP was developed to meet the Colorado Discharge Permit System (CDPS) General Permit for Stormwater Discharges Associated with Construction Activity (Permit No. COR-400000, effective April 1, 2019) authorizing stormwater discharges from construction activities that result in a total land disturbance of one acre or greater or if a project is less than an acre but part of a larger common plan of development. This SWMP was also developed to meet the City of Arvada’s requirements. The City regulates stormwater through its Site Development Permit (SDP).

2. CONTACT INFORMATION AND RESPONSIBLE PARTIES

List the owner, operators, project managers, qualified stormwater manager, and person or organization that is implementing the SWMP. Include name, company, address, telephone number, and e-mail address for each individual or company involved with SWMP design and implementation. The SWMP at a minimum must identify the Qualified Stormwater Manager defined as “an individual knowledgeable in the principles and practices of erosion and sediment control and pollution prevention, and with the skills to assess conditions at construction sites that could impact stormwater quality and to assess the effectiveness of stormwater controls implemented to meet the requirements of this permit.”

Owner: <Insert information>Contractor: <Insert information>Qualified Stormwater Manager: <Insert information>

3. PROJECT SITE DESCRIPTION

Describe the construction activity, including:

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a) The nature of the construction activity at the site

Provide a short description of the type of construction being performed (for example, construction of approximately 300 homes including the construction of roads, sidewalks, roads and a community playground).

b) The proposed sequence for major activities

Provide the sequencing of major activities including phased control measure implementation, clearing, grading, utility construction, road construction, stormwater infrastructure construction, vertical construction, and temporary and final stabilization. Provide estimated dates for significant milestones such as start date, end of construction, and final stabilization dates. Provide information on how control measures will be phased with construction sequencing.

The proposed sequence of major activities includes the following: Insert information describing the sequence of major construction activities

from monbilization to final stabilization.

Estimated Project Start Date: <Insert information> Estimated Project Construction Completion Date: <Insert information>Estimated Project Final Stabilization Date: <Insert information>

c) Estimates of the total acreage of the site, and the acreage expected to be

disturbed by clearing, excavation, grading, or other construction activities.

Total area of construction site: < INSERT NUMBER> acres (Note: all control measures must be inside limits of construction, or a documented use agreement between the permittee and owner or operator of the control measure outside the limits of construction is required by the Stormwater Construction Permit).

Total area of disturbance: < INSERT NUMBER> acres (Note: Disturbance includes, but is 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 the original line and grade, hydraulic capacity, or original purpose of the facility).

Total area of p roposed impervious: <INSERT NUMBER> acresTotal area of proposed landscaping and/or seeded areas: < INSERT NUMBER> acres

d) Existing soil data

The existing soils onsite consist of:

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Describe soil groups, soil erosion potential and other characteristics relevant to runoff and/or erosion for soils on the site as listed in the applicable Soil Survey , published by the Soil Conservation Service, or by accessing the Natural Resource Conservation Service (NRCS) Web Soil Survey at http://websoilsurvey.NRCS.USDA.gov.

e) Existing vegetation

Provide a description of the percent of existing vegetative ground cover relative to the entire site and the method for determining the percentage. Be sure to provide the amount of area when looking down that is covered by vegetation in areas that are vegetated or, if using a transect, how many times vegetation is encountered in the transect as a percentage. Note that the percentage of vegetation along a transect may not be same as the percentage of the overall site covered by vegetation. Multiple transects in different areas of the site may be needed to assess the vegetative cover of the overall site., Include brief description of type of vegetation and identify date of when vegetative cover was assessed.

f) Allowable Non-Stormwater Discharges

Provide a description of any allowable non-stormwater discharges at the site, including those being discharged under a division low risk discharge guidance policy, and provide the control measures that will be used if such controls are needed.

Allowable non-stormwater discharges include: Uncontaminated springs that do not originate from land disturbance activities. landscape irrigation return flow. Emergency firefighting activities. Discharges to the ground of concrete washout water from washing of tools and

concrete mixer chutes may be authorized by this permit, provided that:o The source is identified in the SWMP;o Control measures are included in the SWMP in accordance with CDPS General

Permit COR-400000,o These discharges do not leave the site as surface runoff or to surface waters,

ando The concrete washout shall not be located in an area where shallow

groundwater may be present. Discharges to the ground of water from construction dewatering activities may

be authorized by a CDPHE low risk discharge guidance policy that typically involveso The source is groundwater and/or groundwater combined with stormwater that

does not contain pollutants in concentrations exceeding the State groundwater standards in Regulations 5 CCR 1002-41 and 42;

o These discharges do not leave the site as surface runoff or to surface waters.o Although these are authorized under the low risk guidance policy, these

discharges must be described in this section and controls used to address this

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type of discharge should be shown on the Site Maps and described in this section.

These can be listed, and each item that is a potential allowable non-stormwater discharge for the site can be indicated. Be sure to describe how non-stormwater discharges will be handled/treated.

g) Receiving Waters

This section provides a description of areas receiving discharge from the site including a description of the immediate source receiving the discharge If the stormwater discharge is to a municipal separate storm sewer system, provide the name of the entity owning that system, the location of the storm sewer discharge, and the ultimate receiving water(s).

Stormwater from this site discharges to:

Include the size, type and location of outfalls that discharge into the storm sewer system and the ultimate receiving water or stream.

This construction project is within the City of Arvada, which has a Phase II Municipal Separate Storm Sewer System (MS4) Permit from the State of Colorado.

Are their anticipated wetland impacts? Yes NoStream impacts? Yes No

If there are special conditions related to wetland or stream impacts from Section 404 or other permits that are related to stormwater management, it is recommended that applicable permits be appended to the SWMP and any special control measures included in the SWMP narrative and plans.

Is the stream listed as impaired (on 303 (d) list)? If so, list the paramenter of impairment and if any special treatment is required ?

If yes impaired, does the stream have a TMDL and if so, list the impairment and any special treatment required?

h) Stream crossings located within the construction site boundary

Provide a description of any stream crossings within the construction site boundary/limits of construction.

4. ADDITIONAL PERMITS

Additional State or Federal permits may be required for a construction project depending on the circumstances.

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1. When a flowing watercourse must be crossed regularly during construction and a temporary stream crossing is needed, approval may be required by the U.S. Army Corps of Engineers. Under State requirements, documentation must be available showing that analysis was conducted to determine whether or not a permit was required.

2. Anytime a discharge is pumped from a construction site due to groundwater, or groundwater comingled with stormwater, and discharged to a waterway or inlet, a Construction Dewatering Discharge Permit must be obtained from the State of Colorado.

3. Other permits may include, but are not limited to, sand and gravel permits for batch plants, hydrostatic testing discharge permits, floodplain permits and others.

If no other permits are required, state that no other additional permits are needed for this project.

5. SITE MAPS

The SWMP Site Maps in <Insert Appendix or location information> include the following information:

a) Construction site boundaries; b) Flow arrows that depict stormwater flow directions on-site and runoff direction; c) All areas of ground disturbance including areas of borrow and fill; d) Areas used for storage of soil; e) Locations of all waste accumulation areas, including areas for liquid, concrete, masonry,

and asphalt; f) Locations of dedicated asphalt, concrete batch plants and masonry mixing stations; g) Locations of all structural control measures; h) Locations of all non-structural control measures; i) Locations of springs, streams, wetlands and other state waters, including areas that

require pre-existing vegetation be maintained within 50 feet of a receiving water, where determined feasible; and

j) Locations of all stream crossings located within the construction site boundary.

The SWMP maps are “living documents” that must be updated throughout construction so that they accurately reflect field conditions. This may include updating control measures shown on drawings, showing locations for staging/storage, waste receptacles, portable toilets, etc. This will be achieved through redlining the SWMP with changes and providing dates and initials for when the changes were made.

Note: Depending on the size and complexity of a project, it may be necessary to create SWMP Site Maps for different phases of construction (e.g. initial control measures at start of construction, interim control measures as construction progresses, and final stabilization

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measures).

6. IDENTIFICATION OF POTENTIAL POLLUTANT SOURCES

All potential pollutant sources, including materials and activities, were evaluated for the potential to contribute pollutants to stormwater discharges. This SWMP will identify and describe those sources that have the potential to contribute pollutants to stormwater discharges. Potential pollutant sources will be controlled through control measure selection and implementation. The following potential pollutant sources were evaluated for this project.

1) Disturbed and stored soils;2) Vehicle tracking of sediments;3) Management of contaminated soils;4) Loading and unloading operations;5) Outdoor storage activities (building materials, fertilizers, chemicals, etc.);6) Vehicle and equipment maintenance and fueling;7) Significant dust or particulate generating processes (e.g., saw cutting material, including

dust);8) Routine maintenance activities involving fertilizers, pesticides, herbicides, detergents, fuels,

solvents, oils, etc.;9) On-site waste management practices (waste piles, liquid wastes, dumpsters, etc.);10) Concrete truck/equipment washing, including the concrete truck chute and associated

fixtures and equipment;11) Dedicated asphalt, concrete batch plants, and masonry mixing stations;12) Non-industrial waste sources such as worker trash and portable toilets; and13) Other areas or procedures where potential spills can occur.

If any of these items are evaluated and determined not to be potential pollution sources or not applicable to the project, they should still be listed in the SWMP and listed as “determined not to be a potential source of pollution for project.” For all sources of pollutants that might be present onsite, provide a control measure to reduce the risk of having the pollutant enter waterways or the MS4 conveyance system. Recommend using table or adding text to the above bulleted list.

7. MATERIAL HANDLING, WASTE MANAGEMENT AND DISPOSAL

Provide a narrative on how materials will be handled and stored for activities such as exposed storage of building materials, paints and solvents, landscape materials, fertilizers or chemicals, sanitary waste material, trash and equipment maintenance or fueling procedures

Control measures that will be implemented at the site to minimize impacts from handling significant materials that could contribute pollutants to runoff include the following

o Provide a list of control measures including but not limited to concrete washouts, disposal areas, staking down portable toilets, secondary containment for petroleum products and chemicals, and good housekeeping practices.

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These control measures are illustrated on the Site Maps by redlining once their locations are determined.

Describe how waste materials will be managed and describe disposal practices for any other material such as concrete, construction waste, paint, etc. if not already described.

8. SPILL PREVENTION AND RESPONSE PLAN

Describe spill prevention procedures for petroleum products or chemicals, including who to call for larger spills.

Describe how any bulk storage, 55 gallons or greater, must have secondary containment or equivalent protection.

SWMPs must have a spill prevention and response plan. If there is a separate SPCC plan, it can be incorporated into the SWMP by reference; however, it must be available upon request at the site. The SPCC may be attached as an appendix to the SWMP.

9. IMPLEMENTATION OF CONTROL MEASURES

The SWMP will be implemented in three general phases: 1) initial construction activities, 2) active construction, and 3) final stabilization.

Initial Construction Activities

Clearing and Grubbing is anticipated to begin on < I n s e r t date> .

Prior to Work Commencing

1. Evaluations are performed to evaluate topography, drainage, pre-disturbance vegetation and receiving waters prior to construction and during the development of this SWMP.

2. Initial control measures will be implemented prior to any construction. These include (e.g., perimeter controls, vehicle tracking controls, inlet protection, etc.)

3. Control measures for other pollutants such as equipment fueling, maintenance and material storage (add more as needed) will be implemented throughout the project.

4. The locations of additional control measures will be added to the SWMP as needed.

Pre-Construction Evaluations

1. The project site was evaluated for run-on and run-off. The following controls will be used to control run-on and run-off <insert here>.

This may mean diverting off-site flows (run-on) around the active construction area and/or protecting inlets downstream of the work area from runoff leaving the site even

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though they are not within the property of the project (e.g., curb inlets on streets downgradient from work area). Controls outside the property need to be within the construction limits, and if they require earth work to install, they also need to be within the disturbance limits. Controls outside of the construction limits and shared by other operators need a documented use agreement that describes who is responsible for installation, inspection, maintenance and repair or the control measure. Controls need to be illustrated on the Site Maps.

2. Pre-existing vegetation or equivalent control measures are provided for areas within 50 horizontal feet of receiving waters. If this is not feasible, explain why and change the text to reflect that protection of the pre-existing vegetation within 50 feet of the receiving water was not feasible and describe controls used in these areas.

Control Measures Installed

Provide a narrative description of the control measures installed before and during “Initial Construction Activities.” Typical initial control measures may include:

Perimeter controls Stockpile perimeter controls Inlet protection Vehicle tracking control pads or other types of stabilized construction entrances

Also describe the maintenance, such as “Should off-site tracking occur, all practicable measures to clean roads and storm drainage ways, at a minimum by the end of each work day, will be utilized.”

Details of all control measures used must be included on the maps or in the SWMP (typically details are found in an appendix). UDFCD Fact Sheets, City of Arvada details, CDOT M-208s, or other appropriate details such as proprietary details may be used and referenced in this section.

During Construction

Grading is anticipated to begin on < date>. Installation of utilities is anticipated to begin on < date>. Street construction is anticipated to begin on < date>. Building construction is anticipated to begin on < date> . Temporary stabilization is anticipated to begin on < date> . Permanent/final stabilization is anticipated to begin on < date> .

Control Measures Installed

Control measures installed “During Construction” include the following, plus the initial construction activity control measures:

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Provide narrative descriptions of control measures installed “During Construction.” Perimeter control Inlet / outlet protection Vehicle tracking controls or stabilized construction entrances Concrete washout Masonry product control and washout Street cleaning Stockpile perimeter controls. Check dams Erosion control blankets Sediment basins that withdraw water from or near the surface Minimize disturbance area Phase construction activities Control stormwater flowing onto and through the project Control measures in combination, such as on steep slopes or in flow paths Other control measures such as protecting existing vegetation, creating

diversion swales, installing slope drains, limiting access, etc.

Soil compaction will be minimized to the extent feasible in areas where final stabilization will be achieved through vegetation. This will be implemented in the field by <insert information may include limited disturbances, or access within the site, or ripping the areas prior to seeding to compensate for the compaction during construction>.

Topsoil must be preserved for use in final stabilizationunless in feasible. Topsoil salvage stockpile locations will be indicated on the Site Maps and will have a control measure around the downgradient toe of the pile or be within an area with perimeter control measure.

Soil disturbances will be minimized especially on steep slopes. Visual controls or staking should be installed to provide clear limits of disturbance.

Stormwater runoff will flow to at least one control measure to minimize sediment. Control measures will contain or filter flows to prevent the bypass of flows without treatment.

Details of all control measures used must be included either on the maps or in the SWMP in Appendix <insert information>.

Stabilizing Disturbances

Describe nonstructural control measures including site-specific scheduling of seeding, mulching, geotextiles, or other temporary/interim stabilization conducted after grading. Provide stabilization schedule showing dates when areas are to be completed and stabilized. Maintain revisions to the schedule as necessary.

Temporary stabilization includes the following:

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1. Disturbed surfaces will be left in a roughened condition as feasible by equipment tracking, scarifying or disking the surface along the contour with a 2- to 4- inch minimum variation in soil surface.

2. Temporary stabilization must be implemented for earth disturbing activities on any portion of the site where ground disturbing construction activity has permanently ceased, or temporarily ceased for more than 14 calendar days.

3. Soil compaction must be minimized for areas where infiltration control measures will occur or where final stabilization will be achieved through vegetative cover.

4. During the seasons when seeding does not produce vegetative cover, temporary stabilization will occur. Temporary stabilization may consist of mulching, blanketing, and/or other appropriate temporary stabilization methods.

5. Construction activities will be limited to those areas within the limits of disturbance as shown on the plans. Construction activities in addition to normal construction procedures will include the on-site parking of vehicles or equipment, on-site staging, on-site batch plants, haul roads or work access and any other action which would disturb existing conditions. Off road staging areas or stockpiles must be pre-approved by the City of Arvada. Disturbances beyond these limits will be restored to original condition.

10. FINAL STABILIZATION

Permanent seeding or sod installation is anticipated to begin on < date> . Final stabilization is anticipated to be achieved on < date> .

Control Measures Installed

Control measures associated with Final Stabilization include: (Delete those that to not apply) Hardscaping Seed and Crimp Mulch Erosion Control Blankets Perimeter Control until no longer needed. Inlet / Outlet Protection Other permanent or post-construction control measures such as detention ponds, or

infiltration areas, bioretention, permable pavement, etc.

Details of all control measures used are included either on the maps or in the SWMP < insert appendix location>.

Details for permanent/post-construction control measures are <provide reference or appendix location>.

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Final Stabilization Methods

a) The SWMP shall clearly describe the practices used to achieve final stabilization of all disturbed areas at the site, and any planned practices to control pollutants in stormwater discharges that will occur after construction operations have been completed at the site.

b) Unless infeasible, topsoil shall be preserved for those areas of a site that will utilize vegetative final stabilization.

c) 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); and appropriate sediment control measures as needed until final stabilization is achieved; etc.

Final stabilization is reached when all ground surface disturbing activities at the site have been completed, and uniform vegetative cover has been established with an individual plant density of at least 70 percent of pre-disturbance levels, or equivalent permanent, physical erosion reduction methods have been employed.

Seeding Plan

Describe the seeding and sod installation proposed onsite, including: Areas of irrigated turf Areas of sod Areas of seed Seed mix and application rate Seeding in small areas not accessible to a drill Mulching application - describe and quantify mulching application to

areas seeded and identify the content of the mulching material, including whether it will contain tackifier

Stabilization of slopes and ditches Soil conditioning and fertilizer requirements - describe and quantify fertilizer

application to areas seeded and areas sodded

Reseeding Operations / C orrective Stabilization

Areas where seed has not germinated after one season will be evaluated by the City. Areas that have not germinated will have seed, mulch and mulch tackifier (or blanket) reapplied.

11. POST-CONSTRUCTION CONTROL MEASURES

Post-construction stormwater management measures that will be installed at the Site include:

Biofilters

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Detention/retention devices Earth dikes, drainage swales, and lined ditches Infiltration basins Porous pavement Other proprietary structural control measures such as underground treatment systems Vegetated strips and/or swales

If an HOA has been established or a management company has been contracted, their contact information will be provided to the City for post-construction control measure maintenance.

If there are no post-construction controls, state why. For example, this is an underground utility that is exempt from post-construction requirements or any other allowable exemption.

Termination of the Site Development Permit

Control measures will be removed when 70% of preexisting cover has been established within the disturbed project limits, or equivalent permanent, physical erosion reduction methods have been employed. All temporary controls must be removed prior to closing the stormwater related permits.

12. INSPECTION AND MAINTENANCE OF CONTROL MEASURES

Routine inspections must be conducted by a qualified stormwater manager in accordance with one of the following schedules below:

1. Inspections will be conducted at least every 7 calendar days, or2 . Inspections will be conducted at least every 14 days and within 24 hours after any

significant precipitation event where erosion may have occurred. 3. The first inspection must occur within 7 calendar days of the start of construction

activities.

The City may approve reduced inspections for projects where construction has been completed and all requirements outlined in the SCP have been met for reduced inspections.

Inspection Report / Corrective Action Log

An inspection form should contain a corrective action log documenting routine maintenance and inadequate control measure findings. This log should describe repair, replacement, and maintenance of control measures undertaken based on the inspections, date completed, and note the person that completed the work. Corrective action items that result from control measures that are inadequate need to be addressed immediately.

If it is infeasible to install or repair the control measure that has been identified as inadequate, the following information must be documented and kept on record:

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Describe why it is infeasible to initiate the installation or repair immediately.

Provide a schedule for installing or repairing the control measure and returning it to an effective operating condition as soon as possible.

Site maps and the SWMP text should also updated to describe any necessary changes and updates, including but not limited to, additions of new control measures, removal of controls, significant changes in the activities or their timing on the project, changes in personnel, and updates to site maps.

13. TRAINING

Staff and subcontractors will be trained to identify stormwater control measures and how to prevent problems with them, such as not driving onsite unless through the vehicle tracking control or taking care to not to damage control measures. Documentation on training at safety meetings, certifications, conferences or other event will be kept on file with the SWMP, including dates, number of attendees, subjects covered, and type and length of the training.

14. RECORDKEEPING1. The permittee must retain a hardcopy of the SWMP at the construction site throughout the

life of the project.2. Accurate and complete records will be kept, and maintained for a mi n i mu m o f

three years after the Site Development Permit is terminated.3. The SWMP should be considered a "living document" that will be continuously

reviewed and modified, including but not limited to: additions, deletions, and changing locations of control measures. These changes will be marked in the plans, dated and initialed at time of occurrence.

4. All inspection and maintenance activities or other repairs will be documented and the records kept for review by the City.

5. Records of spills, leaks or overflows that result in the discharge of pollutants must be documented and maintained. Information that should be recorded for all occurrences include the time and date, weather conditions, reasons for spill, etc. A release of any chemical, oil, petroleum product, sewage, etc., which may enter state waters must be reported immediately to the City at 720-898-7640 (720-898-7820 after hours), and the State of Colorado Spill Hotline at 1-877-518-5608.

6. Incidents of noncompliance, such as uncontrolled releases of pollutants including mud, muddy water or measurable quantities of sediment found off-site will be noted, along with a brief explanation as to measures taken to prevent future violations and measures taken to clean up sediment that has left the site.

7. Changes (other than the addition of control measures or changing a control measure to an equivalent type of control measure) to the City of Arvada reviewed plans will need to be approved by the City’s Stormwater Inspector for the site.

FAILURE TO PERFORM

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Failure to implement a SWMP puts the project in automatic violation of the Site Development Permit and the CDPHE Stormwater Construction Permit . Failure to comply with the City of Arvada Site Development Permit requirements will constitute a violation punishable by fines of up to $2650 per day per violation, withholding of building permits and/or certificates of occupancy, or stop work. Systemic violators are punishable by criminal prosecution.

Failure to comply with the CDPHE Stormwater Construction Permit requirements will constitute a violation by the Permittee. Civil penalties for violations can be up to $10,000 per day, and a criminal pollution of state water is punishable by fines of up to $25,000 per day. For additional information, review the permit on file or go on-line to the CDPHE web site at https://www.colorado.gov/pacific/cdphe/news/water-quality-permits.

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EXAMPLE APPENDICES

Appendix A General Location mapAppendix B Site MapsAppendix C Copies of Environmental Permits (including but not limited to CDPS Stormwater

Construction Permit, City of Arvada Site Development Permit, CDPS Construction Dewatering Permit, applicable 404 permits and/or Floodplain Permits

Appendix D Control Measure Specifications and DetailsAppendix E Inspection ReportsAppendix F Training RecordsAppendix G Post-Construction Control Measure Locations and DetailsAppendix H Additional Information – Endangered Species, Historic Preservation, Soil

Reports, etc.