Special Provisions for CIP Project Specifications Under 1 Acre

Stormwater [ak1]Pollution Control Program (7/8/2010)

GENERAL

Stormwater Pollution Control Plan (SWPCP) & Best Management Practices (BMPs)

The contractor shall prepare and maintain a Stormwater Pollution Control Plan (SWPCP) on the form provided by the City, included in this specification, which describes in specific detail the Contractor’s program to prevent contamination of the stormwater collection system. Contractor shall implement, maintain, inspect and remove all erosion and sediment controls identified in the SWPCP. The program shall address both common construction activities and extraordinary events.

Contractor shall include water pollution control drawings (WPCD) in the SWPCP to illustrate the locations, applications and deployment of best management practices (BMPs) identified in the SWPCP. The WPCDs shall be included as an attachment to the SWPCP. Sample WPCDs can be obtained from the Caltrans Storm Water Quality Handbook.The SWPCP shall also comply with the Ventura County Municipal Separate Storm Sewer System Permit (Order No. 2010-0108). A copy of the permit is available for review from the City of Camarillo Stormwater Program Manager; phone 805-383-5659.

The Contractor shall comply with laws, rules, and regulations of the State of California and agencies of the United States Government prohibiting the pollution of lakes, wetlands, streams, or river waters from the dumping of contaminates, refuse, rubbish or debris.

The contractor shall submit three (3) copies of the SWPCP a minimum of 10 working days prior to beginning construction. Construction shall not begin until the SWPCP is approved.Contractor shall update the SWPCP as necessary during the work to prevent contamination of the stormwater collection system.

Before start of work, Contractor shall train all employees and subcontractors on the SWPCP and related WPCD and provide City with written documentation of said training.

Suggested BMPs can be obtained from the following sources:

VenturaCounty Municipal Separate Storm Sewer System Permit/Order 2010-0108 available at Los Angeles Regional Water Quality Control Board web site at:

California Stormwater BMP Handbooks for Construction or Municipal Activities -

Ventura Countywide Stormwater Quality Management Program –

Caltrans’ Stormwater Quality Handbooks -

CONSTRUCTION

The contractor shall keep a copy of the SWPCP on the job site. The contractor shall provide continuously at the jobsite all of the tools, equipment, and materials necessary to implement the SWPCP at all times from project initiation through completion, including any punchlist or warranty work on the project. At a minimum the following requirements should be met as applicable, to the maximum extent practicable, at construction sites regardless of size:

  1. Storm Drain System Protection – At the first order of work, the Contractor shall protect the existing storm drain system from entrance of construction debris and pollutants. Such protection shall include implementing the BMPs as outlined in the SWPCP. Protection shall prohibit the discharge of untreated runoff from temporary or permanent street maintenance/landscape maintenance material and waste storage areas from entering the storm drain system. Sediment that is generated on the project site shall be retained using structural drainage controls. In addition, the protection system shall have a minimum of three features: 1) a particulate filter of geosynthetic material securely fastened in place such that it cannot be bypassed without significant physical damage; 2) a prefilter for the particulate filter; and 3) on-hand materials to close off the inlet or opening in the case of a significant pollution spill. Contractor shall monitor and maintain all storm drain inlet protection devices during rain events to prevent flooding.
  1. Material Management & Storage – No construction-related materials, wastes, spills or residues shall be discharged from the project site to streets, drainage facilities or adjacent properties by wind or runoff. All materials and/or equipment storage areas where liquid construction materials are placed shall be protected by a physical barrier capable of containing the entire volume of stored liquid materials. During active construction activities, portions of the barrier may be removed for access. However, the barrier materials must be readily accessible for replacement by onsite construction personnel. The barrier must be in place at all times during the absence of Contractor personnel at the storage site. Building materials should be placed on pallets and covered in event of rain. Do not store materials in the street or gutter area.
  1. Equipment & Vehicle Maintenance – Non-stormwater runoff from equipment and vehicle washing and any other activity shall be contained at the project site and shall not be allowed to discharge from the project site to streets, drainage facilities or adjacent properties by wind or runoff. The Contractor shall inspect vehicles and equipment on each day of use. Leaks shall be repaired off-site if possible. If necessary to repair on site, the runoff must be contained or the problem vehicle or equipment shall be removed from the project site until repaired. If necessary, drip pans should be placed under the vehicles or equipment while not in use to catch and/or contain drips and leaks.
  1. Soil Erosion Control – Erosion from slopes and channels will be significantly reduced by implementing BMPs, including but not limited to, minimizing grading activities during the wet season, inspecting graded areas during rain events, planting and maintaining vegetation on slopes, and covering slopes susceptible to erosion.
  1. High Risk Sites - Hillside or Construction Discharging Directly to Sediment Impaired Waterbody – Contractor shall implement enhanced BMPs on sites located on hillsides (slopes that are 20 percent or greater) or that discharge directly to Conejo Creek, Calleguas Creek, or Revolon Slough/Beardsley Wash. For a list of enhanced BMPs see Table 9 in Part 4.F.4 in the Ventura County Municipal Stormwater Permit (Order No. 2010-0108) available at: In addition to enhanced BMPs, these type of “high risk” sites must be inspected by a qualified SWPPP Developer at least weekly during the wet season and once each 24 hour period during a storm event that generates runoff from the site to identify BMPs that need maintenance to operate effectively, that have failed or could fail to operate as intended.
  1. Pesticide/Herbicide Application & Landscape Activities – Use fertilizers and pesticides as directed; keep them away from drainage facilities. Follow the standard protocol for routine and nonroutine application of pesticides, herbicides and fertilizers as per the Ventura County Stormwater Management Plan (A copy of the Pesticide Program Protocol can be obtained at the following web site: Protect stockpiles and materials from wind and rain by storing them under tarps or secured plastic sheeting. Do not deposit leaves or landscape debris into the street, gutter or storm drain system.
  1. BMP Inspection – The contractor shall inspect all pollution control BMPs regularly. The Contractor should also repair/replace any damaged or clogged element on a daily basis. During periods of precipitation where any runoff occurs, the system shall be checked twice a day, seven days a week, whether or not any work has been performed. The daily checks shall be between 6 and 9 a.m. and 4 to 8 p.m. The contractor shall keep a monitoring inspection log of each inspection.
  1. Spill Prevention & Cleanup Plan - Contractor shall have a spill prevention plan and spill cleanup materials readily available and addressed in the SWPCP. Spills shall be cleaned up immediately using dry methods if possible. Spill cleanup material shall be properly disposed of. Refer to SC-11 Spill Prevention BMP from the California Stormwater BMP Handbook for Municipal Activities. Contractor shall keep a record of any spills in the inspection log. In addition, at the end of the project, the Contractor must certify that all contaminated materials have been properly disposed in accordance with the SWPCP.
  1. Asphalt & Concrete Activities – Asphalt and concrete activities shall be scheduled for dry weather. Contractor shall prohibit sawcutting during a storm event of .25 inches or greater. Store bags of cement away from gutters and storm drains, sealed and covered, protected from rainfall runoff and wind. Place tarp under cement mixer before operating to catch spills. Never dispose of cement washout or concrete dust onto driveways, streets, gutters or storm drains. Refer to BMP #WM-8 and NS-3 in the 2003 California BMP Handbook for Construction.
  1. Sidewalk Washing – The following methods should be utilized to prevent discharge of sidewalk cleaning wastewater into the storm drain system:
  1. Sweep and pick up all areas to be cleaned before using water.
  2. Manually scrape gum from sidewalks and other surfaces.
  3. Must use high pressure and low volume of water with no additives and at an average usage of 0.006 gallons per square foot of surface area to be rinsed.
  4. Use a wet/dry vacuum to collect wash water for disposal. Large volumes of wash water may require the use of a small sump pump to remove wash water from the job site.
  5. One or more of the following methods are recommended to prevent pollutants from entering the storm drain system:
  6. Sandbags can be used to create a barrier around storm drains. *
  • Rubber mats or plugs can be used to seal drain openings. *
  • Temporary berms or containment pads help keep water on site. *
  • Use berms of sandbags to direct wash water to landscaping. *
  • Use large squeegees to accumulate sheet flow for collection.

*Remember to remove plugs, berms, and sandbags or you may be liable for possible flooding.

  1. Wash water that may contain hazardous waste such as oil-saturated absorbents, water with lead or other heavy metals from oxidized paint, and solvent cleaners requires special treatment and must be disposed of through a hazardous waste facility.
  1. Employee BMP Training – Contractor shall train employees and subcontractors on BMP implementation, general good housekeeping, and proper spill containment and cleanup. Before start of work, Contractor shall provide city with written documentation of training and keep all documentation in the SWPCP.
  1. Inspection – Contractor shall inspect and repair or replace, as needed, all job site BMPs a minimum of:
  2. Once per month during the non-rainy season (April 16 – September 30)
  3. Once per week during the rainy season (Oct. 1 – April 15)
  4. Before, during and after a major rain event.
  5. High Risk sites shall be inspectedweekly during the wet season and once each 24 hour period during a storm event that generates runoff from the site.

Contractor shall document the inspections in the SWPCP.

  1. Dewatering – Avoid dewatering discharges where possible by using the water for dust control, infiltration, etc. If necessary to dewater, contractor shall obtain a permit from the Los Angeles Regional Water Quality Control Board. Contractor shall be responsible for all costs related to implementing the dewatering permit. For further instruction refer to the California Construction Handbook – BMP NS-2.
  1. Removal of Accumulated Rainwater – The contractor shall follow the City of Camarillo Guidelines for Removal of Rainwater that has accumulated on the job site. The preferred method is to filter the rainwater into a water truck for use in dust control or irrigation. If it is necessary to remove rainwater from the site to the street, gutter or storm drainage system, contractor shall use BMPs to insure that the water does not exceed 100 mg/l of Total Suspended Solids and no other construction waste is present in the water to be discharged before discharging to drainage facilities.

PAYMENT

The contractor shall be paid for work of preparing, implementing, inspecting, maintaining, and removing the SWPCP on a lump sum basis as enumerated in the Bid Schedule for the Stormwater Pollution Prevention Program (Bid Item No.2). In addition, failure to perform and document the required daily inspections shall result in a daily fine of $500/calendar day. The imposition of the fine shall not relieve the Contractor of any obligations of these project requirements.

Payment for the work involved under the bid item for the Stormwater Pollution Prevention Program may be made on a partial payment system based on the completion of the following stages of work:

Work DescriptionPayment

Develop Plan10% of Bid Price

Initial Plan Implementation10% of Bid Price

Removal of BMPs at Completion10% of Bid Price

Inspection & Maintenance of SWPCP70% of Bid Price

Payment for the SWPCP shall include all materials, equipment, labor, and incidentals for preparing, maintaining, and updating a SWPCP and complying with all provisions including maintenance and updating of BMPs throughout construction, as specified herein.

Fines from regulatory agencies levied against the City because of the Contractor’s actions or inactions shall be the responsibility of the Contractor and may be deducted from payments due or to become due the Contractor.

Definitions:

Best Management Practices (BMPs)- A Best Management Practice is a technique, process, activity, or structure used to reduce the pollutant content of a stormwater or non-stormwater discharge. BMPs may include simple, non-structural methods such as good housekeeping, staff training, and preventive maintenance. Additionally, BMPs may include structural modifications such as the installation of berms, canopies or treatment control.

Special Provisions 17/8/2010 ver

[ak1]1These are conditions to insert in specs. for city projects that don’t require a coverage under State Gen. Permits. If project is over 1 acre, it will require coverage either under the State General Construction or the LUP permit. (NOTE This will be revised to reflect post-construction requirements which become effective approx. 5-2011. If a CIP project has “initiated project design” prior to the effective date of approx. 5-2011, then the post-const. requirements may not apply.