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Public Works will re-open our front counter to the public on July 6 and start providing some modified services.  Our hours will be 8 – 5, with closure from 12 – 1:30 for sanitation. Masks are mandatory in our building, and we ask that you adhere to physical distancing protocol. We will have limited services at our front counter and will not be accepting drop in meetings.  Please contact 805-781-5252 to make an appointment with staff.  Bus passes can be purchased at the Kiosk on the corner of Osos and Palm or by phone via Follow us on Twitter @SLOCountyPWD for the latest updates.

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Contact Public Works via web form, email, or call us at (805) 781-5252.

Sewer and Water Connections (Will Serve)

What is the process?

Step 1: Submit a Request for Water/Sewer Will Serve Letter

Individuals requesting water or sewer service for a single service must complete a Water-Sewer Will Serve Letter Request Form. The applicant must fill out the form with the following information:

  • Name and contact information of property owner (applicant) and agent
  • Service address
  • Assessor's Parcel Number
  • Permit # (if applicable)
  • Project Type

Step 2: Verify Eligibility

District staff will verify the eligibility of the subject property to obtain service. Once approved, an estimate of fees will be provided.

Step 3: Pay Fee

Submit your Water and Sewer Service fee to the Public Works Department Accounting staff. If you have any questions about your payment, please contact the Public Works Accounting staff at (805) 781-5252.

Step 4: Service Installation

Once your payment has been received, the district operator will proceed with the appropriate service installation.

PLEASE NOTE: Due to the potential for liability, all service line and/or water main installations must be performed by either District staff or a licensed contractor on contract with the County. An applicant for water service CAN NOT use their own contractor for these installations.

Who can use this service?

Property owners and their agents for properties within these County water and wastewater service areas.  Each CSA or District name links to the map. 

CSA or District







Oak Shores












Country Club



Santa Margarita



Los Osos


Is there a charge for this service?

Fees are based on the location and diameter of the lateral connection.

Meter Fees

Cayucos CSA 10A 5/8", 3/4", 1", 1 1/4", 1 1/2" $325-$375
Shandon CSA 16 5/8", 3/4", 1" $325-$395
Santa Margarita CSA 23 5/8" $350

Connection Fee (Single Family Residence)

Cayucos CSA 10A $8,100
Nipomo CSA 1 $2,000
Oak Shores CSA 7A $2,075
San Luis Obispo Country Club CSA 18 $2,500
Shandon CSA 16 $2,800
Santa Margarita CSA 23 $2,000

When and where is this service offered?

This service is available throughout the year during regular business hours except during scheduled holidays.

Location, directions and hours of operation

Click on location name to show hours of operation, directions and phone information

Frequently Asked Questions

Contact Public Works via web form, email, or call us at (805) 781-5252.