Post-Construction Stormwater Management

Who can use this service?

Owners of regulated projects within the County's Stormwater Management Area can use this service. Please review the Central Coast Post-Construction Requirements to determine whether or not a project is regulated and which performance requirements apply.

Is there a charge for this service?

Please refer to the Department of Planning & Building Fee Schedule for application fees (Minor Condition Compliance Monitoring with a Site Visit - L14).

What is the process?

Step 1: Review Operation & Maintenance Plan Instructions

Private stormwater systems may use one of three mechanisms for recording an Operation and Maintenance Plan.  Most owners record an Agreement for their stormwater system. Instructions for recording each type of Operation and Maintenance Plan are provided:

Step 2: Complete Forms

Private stormwater system owners submit the following forms to the Department of Planning & Building for review prior to recording an operation and maintenance plan:

The components of the system may be Centralized or Decentralized depending on the size of drainage area. Applicants should reference the descriptions of system components to determine what type of structural control measures must be recorded. 

County staff must review the forms before they are notarized.

Step 3: Submit Draft Form For Review

Applicants will submit the draft operation and maintenance plan for staff review. Applicants should not sign or notarize documents prior to review. Approved plans will be returned to the system owner for signature and notarization.

Step 4: Pay Fees

Staff will assign a condition compliance monitoring permit to the property associated with the project. This permit will be used to track the long-term operation of the system. Document recording fees will also be added for recording the operations and maintenance agreement at the Clerk Recorder’s office.

Step 5: Return Notarized Documents

Applicants return the signed, notarized document for countersignature by County staff. Following counter signature, County staff will record the document with the Clerk Recorder.

Step 6: Certify Construction

The system design engineer must certify the construction of the stormwater system and submit the certification form prior to final of construction permits.

Step 8: Submit Forms (Annually)

The private stormwater system owner/operator annually submits the appropriate completed self-inspection forms along with a completed stormwater inspection coversheet to verify that the system is operable and maintained in good condition. The appropriate self-inspection forms (listed below) should be included as an element of the plans and manuals provided to the owner/operator.

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

Old County Courthouse Building

Monday - Friday 8:30 AM - 4:30 PM

976 Osos Street Room 200 San Luis Obispo, CA 93408

Tel: (805) 781-5600

Permits/Inspections: (805) 788-2076

Fax: (805) 781-1242

Frequently Asked Questions

What kinds of structures should be included in the operation and maintenance plan?

All structural controls installed to meet Performance Requirements 2, 3, or 4 must be included in the operation and maintenance plan. The County recognizes both centralized and decentralized stormwater structural control measures.

Who can I contact if I have questions?

You may contact Ann Gillespie, Stormwater Program Manager with additional questions about this service at agillespie@co.slo.ca.us or (805) 781-5602.

Who creates the operation and maintenance plans?

The operation and maintenance plan may be created by the private stormwater system owner, their agent, or the system designer. However, the owner must sign and notarize an agreement following review and approval by the County.

Why is an operation and maintenance plan required?

The Central Coast Regional Water Quality Control Board adopted Resolution R3-2013-0032, the Central Coast Post Construction Requirements, which requires long term operation and maintenance plans for stormwater control systems on private property. The resolution specifies that the responsibility for maintaining the system must be legally enforceable and must remain with the property in perpetuity.

The County supports private stormwater system owners by providing a service to document and record the appropriate information to comply with this requirement.