ADMINISTRATIVE COMMITTEE

 

19.

CONSIDER FUNDING A STORM WATER POLLUTION PREVENTION PLAN DEVELOPMENT AND MONITORING SERVICES FOR ASR EXPANSION PROJECT

 

Meeting Date:

June 11, 2018

Budgeted: 

Yes

 

From:

David J. Stoldt

Program/

Water Supply Projects

 

General Manager

Line Item:

35-04-786004

 

Prepared By:

Maureen Hamilton

Cost Estimate:

$45,000

 

General Counsel  Review:  N/A

Committee Recommendation:  The Administrative Committee reviewed this item on June 11, 2018 and recommended ________________.

CEQA Compliance:  This action does not constitute a project as defined by the California Environmental Quality Act Guidelines Section 15378.

 

 

 

 

 

 

 

 

 

 

SUMMARY:  The Santa Margarita ASR Expansion project (ASR Expansion) to expand the backflush basin and install disinfection facilities requires development of a Storm Water Pollution Prevention Plan (SWPPP) by a Qualified SWPPP Developer (QSD).  A Qualified SWPPP Practitioner (QSP) must be designated and assume responsibility for SWPPP Best Management Practices (BMPs) implementation and monitoring. A proposal for services will be presented at the committee meeting.

RECOMMENDATION:  Staff recommends that the Board authorize the General Manager to enter into a contract with Schaaf and Wheeler for development of a SWPPP in an amount not-to-exceed (NTE) $15,000. 

Staff recommends that the Board authorize the General Manager to enter into a contract for Qualified Stormwater Practitioner services to assist in SWPPP BMP implementation and compliance monitoring in an amount NTE $30,000

 

BACKGROUND:  Injection wells must be backflushed weekly to maintain injection capacity.  Backflush water from Seaside Middle School site is conveyed to the Santa Margarita backflush basin because a basin is not permitted on school grounds.  Backflush water from two future Cal-Am ASR wells will be conveyed to the Santa Margarita backflush basin because the new ASR site does not have space for a backflush basin.  The backflush basin is not sized to accommodate backflush water from six wells in one workweek, and must be expanded.

 

The backflush basin expansion will require the excavated soil to be stockpiled until a permanent disposition can be identified on the former Fort Ord Seaside Munitions Response Area (MRA), in compliance with the Construction Support Plan for unexploded ordnance approved by the EPA, Department of Toxic Substances Control, and Army.  The soil stockpile requires development of a SWPPP.

A Schaaf and Wheeler QSD developed the SWPPP for Pure Water Monterey Injection Wells Facilities, located on the same assessors parcel as the Santa Margarita ASR site.  The soil characteristics, local surface water bodies, and practicable controls on the MRA would be the same for Pure Water Monterey and ASR Expansion.  Staff wishes to enter into a contract with the same QSD to develop a SWPPP in an effective and timely manner.

 

A QSP must be designated and is assigned responsibility for the implementation of the SWPPP Best Management Practices (BMPs), including non-stormwater and stormwater visual observations.  After construction begins, monitoring and QSP services will be required until the soil is permanently placed and the area is re-vegetated, a time period estimated to be 2 years.  The QSP contract would be issued after the SWPPP is developed and after all project permits have been received.

 

QSP services are provided on a time and material basis.  The cost estimate is based on the QSP monitoring services for Pure Water Monterey Injection Wells Facilities contract price.  Because the monitoring must take place while the site is inactive between construction contracts, the service will be managed directly by MPWMD. 

 

EXHIBIT

Proposal for ASR Expansion SWPPP Development to be provided at the meeting

 

 

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