Stormwater Permit Applications - Valencia, CA

Environmental Protection California 3 Minutes Read · published February 21, 2026 Flag of California

In Valencia, California, stormwater permits for construction, grading, and certain land-disturbing activities are handled through the City of Santa Clarita and the California State Water Resources Control Board programs. Start your process with the City of Santa Clarita Development Services or Public Works for local permitting and with the State Water Board’s SMARTS system for statewide construction permit notices and SWPPP filings. [1][2]

Penalties & Enforcement

The City of Santa Clarita enforces local stormwater rules through Public Works and Development Services. State enforcement of the Construction General Permit and other NPDES requirements is managed by the California State Water Resources Control Board. Enforcement can include administrative fines, stop-work orders, injunctions, and referral to state or federal agencies.

  • Fine amounts: not specified on the cited city page; state-level penalties are governed by the State Water Board and federal law and are not specified on the cited pages.
  • Escalation: typical progression is warning, notice to comply, administrative fines, stop-work, and civil actions; exact ranges are not specified on the cited city pages.
  • Non-monetary sanctions: stop-work orders, orders to remediate or restore sites, permit suspensions, and referral for civil or criminal action.
  • Enforcer and inspections: City of Santa Clarita Public Works and Development Services perform inspections and accept complaints; state compliance inspections may be performed by Regional Water Boards.
  • Appeals and review: appeal routes vary by action type—appeals of local administrative penalties or permit decisions follow the City’s appeals procedures; specific time limits are not specified on the cited city pages.
Contact the enforcing office promptly if you receive a notice to avoid escalation.

Applications & Forms

Key filings and plans commonly required:

  • Notice of Intent (NOI) and NOTICE OF TERMINATION (NOT) for coverage under the State Construction General Permit via SMARTS. State SMARTS portal [2]
  • Stormwater Pollution Prevention Plan (SWPPP) required for projects covered by the Construction General Permit.
  • Local grading, building, or site development permits and any Water Quality Management Plan (WQMP) as required by the City of Santa Clarita; submission method is via the City’s Development Services workflows. City Development Services [1]
  • Fees: project and permit fees vary by permit type and are not specified on the cited city pages.
Most construction projects that disturb one acre or more require a SWPPP and NOI to the state.

How to Comply and Common Violations

To reduce enforcement risk, follow local erosion controls, maintain BMPs on site, keep records of inspections, and submit required SWPPP and local permit documentation on time.

  • Common violations: unprotected soil/erosion, failed BMPs, unauthorized discharges to storm drains, missing or incomplete SWPPP.
  • Records and inspections: retain inspection logs, corrective action records, and monitoring documentation as required by permit terms.

FAQ

Who issues stormwater permits for Valencia projects?
The City of Santa Clarita issues local grading, building, and development permits; statewide construction stormwater notices and permit coverage are filed through the State Water Resources Control Board SMARTS system. [1][2]
Do I need a SWPPP?
If your project is covered by the State Construction General Permit (typically disturbance of one acre or more or part of a larger common plan), a SWPPP is required and the NOI must be filed in SMARTS. State Water Board construction stormwater info [3]
How do I report a stormwater violation?
Report suspected illicit discharges or erosion runoff to City of Santa Clarita Public Works via the official complaint/report channels listed in Resources below.

How-To

  1. Confirm whether your project needs state coverage (e.g., construction disturbing one acre or more).
  2. Prepare a SWPPP and necessary local plans (WQMP, erosion control) and supporting documents.
  3. File NOI and related forms in the State SMARTS portal and obtain coverage. SMARTS [2]
  4. Submit local grading/building permit applications to City Development Services and pay applicable fees.
  5. Maintain BMPs, perform inspections, keep records, and file NOT when project is complete.

Key Takeaways

  • Start with the City of Santa Clarita for local permits and with the State SMARTS system for state construction coverage.
  • Prepare a SWPPP early and keep inspection records to avoid fines and stop-work orders.

Help and Support / Resources

  1. [1] City of Santa Clarita Development Services - permits and local stormwater requirements
  2. [2] State Water Resources Control Board SMARTS portal - NOI/NOT and permit filings
  3. [3] California State Water Resources Control Board - construction stormwater information

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