SWPPP.pdf
PDF 146 KB Posted
- Attached to
- Cloverdale Road, Victory Road to Overland Road
- Solicitation number
- CT227-08
- Issued by
- Ada County, Idaho
About this file
This is a Stormwater Pollution Prevention Plan (SWPPP) document for the Cloverdale Road widening project in Idaho, prepared in compliance with state and federal stormwater regulations. The plan outlines erosion and sediment control measures, construction best management practices, and stormwater management strategies required for the road widening project extending from Victory Road to Overland Road. The SWPPP establishes protocols for site preparation, material handling, waste management, dust control, and sediment containment during the construction phases of the five-lane roadway expansion. The document specifies monitoring requirements, inspection schedules, and maintenance procedures for all temporary and permanent stormwater control features, including the drainage basin construction and irrigation system modifications outlined in the project scope.
The SWPPP identifies specific environmental protection measures and pollution prevention objectives tailored to the project site conditions and local regulatory requirements. The plan details responsibilities for stormwater management implementation, including site personnel assignments, training requirements, and documentation procedures to ensure compliance with Clean Water Act provisions and Idaho Department of Environmental Quality standards. The document establishes protocols for responding to storm events, maintaining erosion control devices, and implementing corrective actions when monitoring reveals inadequate sediment containment or water quality issues. The plan serves as an operational guide for contractors performing the roadway widening, bridge epoxy coating repairs, creek pipe replacement, and pedestrian safety improvements, ensuring environmental protection throughout all construction activities.
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Text version
ACHD Supplied SWPPP Information This information is provided to the Contractor to aid in the preparation of the SWPPP Report and NOI.
1. Project/Site Information
i. Project Name: Cloverdale Rd – Victory Rd to Overland Rd
ii. Project Street/Location: Cloverdale Rd, Boise & Meridian
iii. Project Latitude/Longitude: Latitude 38°57'33.81"N, Longitude 95°15'55.75"W
i. Method for determining latitude/longitude:
USGS topographic map (specify scale: ) EPA Web site GPS Other (please specify): Google Earth
iv. Additional Project Information:
i. Is the project/site located on Indian country lands, or located on a property of religious or cultural significance to an Indian tribe? Yes No
ii. If yes, provide the name of the Indian tribe associated with the area of Indian country (including the name of Indian reservation if applicable), or if not in Indian country, provide the name of the Indian tribe associated with the property: INSERT
TEXT HERE
2. Discharge Information
i. Does your project/site discharge stormwater into a Municipal Separate Storm Sewer
System (MS4)? Yes No
ii. Are there any surface waters that are located within 50 feet of your construction disturbances? Yes No
iii. Names of Receiving Waters:
Name(s) of the first surface water that receives stormwater directly from your site and/or from the MS4 (note: multiple rows provided where your site has more than one point of discharge that flows to different surface waters)
1. Eightmile Creek
2. Ridenbaugh Canal
Is this surface water listed as “impaired”?
If you answered yes, then answer the following:
What pollutant(s) are causing the impairment?
Has a TMDL been completed?
Title of the
TMDL
document
Pollutant(s) for which there is a
TMDL
1. YES NO YES NO
2. YES NO YES NO
3. YES NO YES NO
iv. Describe the method(s) you used to determine whether or not your project/site discharges to an impaired water: Retained On-site
v. Are any of the surface waters to which you discharge designated by the state or tribal authority under its antidegradation policy as a Tier 2 (or Tier 2.5) water (water quality exceeds levels necessary to support propagation of fish, shellfish, and wildlife and recreation in and on the water) or as a Tier 3 water (Outstanding Natural Resource Water)? (See Appendix F). Yes No If yes, name(s) of receiving water(s) and its designation (Tier 2, Tier 2.5 or Tier 3): INSERT TEXT HERE
3. Nature of the Construction Activity
i. Size of Construction Project: What is the size of the property (in acres), the total area expected to be disturbed by the construction activities (in acres), and the maximum area expected to be disturbed at any one time?
INSERT SIZE OF PROPERTY 28 Acres
INSERT TOTAL AREA OF CONSTRUCTION DISTURBANCES 28 Acres INSERT MAXIMUM AREA TO BE DISTURBED AT ANY ONE TIME 28 Acres
4. Endangered Species Protection:
i. Eligibility Criterion: ☒A ☐B ☐C ☐D ☐E
ii. Include documentation supporting your determination of eligibility.
Supporting Documentation Provide documentation for the applicable eligibility criterion you select, as follows:
For criterion A, indicate the basis for your determination that no federally-listed threatened or endangered species or their designated critical habitat(s) are likely to occur in your site’s action area. Check the applicable source of information you relied upon:
Specific communication with staff of the U.S. Fish & Wildlife Service or National Marine Fisheries Service. 8/18/2026, Online Web Site
Publicly available species list. INSERT SPECIFIC DOCUMENT AND/OR WEBSITE RELIED UPON Other source: INSERT SPECIFIC SOURCE
For criterion B, provide the Tracking Number from the other operator’s notification of permit authorization: INSERT AUTHORIZATION TRACKING NUMBER FROM OTHER OPERATOR'S NOTIFICATION
LETTER/EMAIL
Provide a brief summary of the basis used by the other operator for selecting criterion A, B, C, D, E, or F: INSERT TEXT HERE
For criterion C, provide the following information:
INSERT LIST OF FEDERALLY-LISTED SPECIES OR FEDERALLY-DESIGNATED CRITICAL HABITAT LOCATED IN
YOUR ACTION AREA
INSERT DISTANCE BETWEEN YOUR SITE AND THE LISTED SPECIES OR CRITICAL HABITAT (in miles)
Also, provide a brief summary of the basis used for determining that your site’s discharges and discharge-related activities are not likely to adversely affect listed species or critical habitat: INSERT TEXT HERE
For criterion D, E, or F, attach copies of any letters or other communication between you and the U.S. Fish & Wildlife Service or National Marine Fisheries Service concluding consultation or coordination activities. INSERT COPIES OF LETTERS OR OTHER COMMUNICATIONS HERE
5. Historic Preservation:
Step 1 Do you plan on installing any of the following stormwater controls at your site? Check all that apply below, and proceed to, Step 2.
Dike Berm Catch Basin Pond Stormwater Conveyance Channel (e.g., ditch, trench, perimeter drain, swale, etc.)
Culvert Other type of ground-disturbing stormwater control: INSERT SPECIFIC TYPE OF STORMWATER CONTROL
(Note: If you will not be installing any ground-disturbing stormwater controls, no further documentation is required for Section 3.2 of the Template.)
Step 2 If you checked off controls in Step 1, have prior surveys or evaluations conducted on the site already determined that historic properties do not exist, or that prior disturbances at the site have precluded the existence of historic properties? YES NO
If yes, no further documentation is required for Section 3.2 of the Template.
If no, proceed, Step 3.
Step 3 If you answered no in Step 2, have you determined that your installation of subsurface earth-disturbing stormwater controls will have no effect on historic properties?
YES NO
If yes, provide documentation of the basis for your determination. INSERT REFERENCES TO DOCUMENTS, STUDIES, OR OTHER SOURCES RELIED UPON
If no, proceed to, Step 4.
Step 4 If you answered no in Step 3, did the State Historic Preservation Officer (SHPO), Tribal Historic Preservation Office (THPO), or other tribal representative (whichever applies) respond to you within 15 calendar days to indicate whether the subsurface earth disturbances caused by the installation of stormwater controls affect historic properties? YES NO
If no, no further documentation is required for Section 3.2 of the Template.
If yes, describe the nature of their response:
Written indication that adverse effects to historic properties from the installation of stormwater controls can be mitigated by agreed upon actions. INSERT COPIES OF LETTERS, EMAILS, OR OTHER COMMUNICATION BETWEEN YOU AND THE APPLICABLE SHPO, THPO, OR OTHER TRIBAL
REPRESENTATIVE
No agreement has been reached regarding measures to mitigate effects to historic properties from the installation of stormwater controls. INSERT COPIES OF LETTERS, EMAILS, OR OTHER COMMUNICATION BETWEEN YOU AND THE APPLICABLE SHPO, THPO, OR OTHER TRIBAL REPRESENTATIVE
Other: INSERT COPIES OF LETTERS, EMAILS, OR OTHER COMMUNICATION BETWEEN YOU AND THE APPLICABLE
SHPO, THPO, OR OTHER TRIBAL REPRESENTATIVE
http://water.epa.gov/polwaste/npdes/stormwater/upload/cgp2012_finalpermit.pdf http://water.epa.gov/polwaste/npdes/stormwater/Stormwater-Pollution-Prevention-Plans-for-Construction-Activities.cfm
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