i19 Stormwater Permitees Municipal

The feature datasets contain Phase 1 and Phase 2 municipal separate stormwater sewer system (MS4s) permittees in California. These draft layers are based on 2010 census data and they have not been updated since 2013 and there are no current plans to include them as a SWRCB web service. Most of the Phase 1 permittees encompass an entire metropolitan area. The Municipal Storm Water Program manages the Phase I Permit Program (serving municipalities over 100,000 people), the Phase II Permit Program (for municipalities less than 100,000), and the Statewide Storm Water Permit for the State of California Department of Transportation. The State Water Resources Control Board (State Water Board) and Regional Water Quality Control Boards (collectively, the Water Boards) implement and enforce the Municipal Storm Water Program.

Data and Resources

Field Value
accessLevel public
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier 4d6c4f5f-5e9a-4c41-baa4-9e49e3b6d811
issued 2021-12-07T20:10:47.000Z
modified 2022-02-16T18:33:38.000Z
publisher California Department of Water Resources
resource-type Dataset
source_datajson_identifier true
source_hash 3a9fbc4f42e3cbd4ee2f63203ec920491c1e3ea8
source_schema_version 1.1
theme {"Natural Resources",Water}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • 2013
  • 2018
  • amerigeo
  • amerigeoss
  • california-department-of-water-resources
  • california-natural-resources-agency
  • caopendata
  • ckan
  • dwr
  • geo
  • geoss
  • ms4
  • municipal-separate-stormwater-system
  • national
  • north-america
  • phase-i
  • phase-ii
  • storm
  • storm-water
  • stormwater
  • stormwater-permittees
  • united-states
  • utilitiescommunication
isopen False
license_id notspecified
license_title License not specified
maintainer gis_admin@water.ca.gov_DWR
maintainer_email gis@water.ca.gov
metadata_created 2025-11-21T20:46:36.704315
metadata_modified 2025-11-21T20:46:36.704319
notes <div style='text-align:Left;'><div><p><span>The feature datasets contain Phase 1 and Phase 2 municipal separate stormwater sewer system (MS4s) permittees in California. These draft layers are based on 2010 census data and they have not been updated since 2013 and there are no current plans to include them as a SWRCB web service. Most of the Phase 1 permittees encompass an entire metropolitan area. The Municipal Storm Water Program manages the Phase I Permit Program (serving municipalities over 100,000 people), the Phase II Permit Program (for municipalities less than 100,000), and the Statewide Storm Water Permit for the State of California Department of Transportation. The State Water Resources Control Board (State Water Board) and Regional Water Quality Control Boards (collectively, the Water Boards) implement and enforce the Municipal Storm Water Program.</span></p></div></div>
num_resources 6
num_tags 23
title i19 Stormwater Permitees Municipal