VerifiedBulk fileStale
Regional Phase I MS4 stormwater permit (Order R4-2021-0105)
The permit governing stormwater from LA County cities including the City of LA: the order, monitoring and reporting program, TMDL attachments, and reporting forms.
Regional Phase I MS4 stormwater permit (Order R4-2021-0105) is published by Los Angeles Regional Water Quality Control Board for Los Angeles, California. It's a bulk download; its update schedule isn't stated. Reuse: check terms. Check status: verified.
One building, every record. Permits, code cases, inspections and certificates of occupancy for one Los Angeles address, from five City datasets, on one page.Check an address free
UpdatesNot stated
Last updatedNot stated
ReuseCheck terms
Get itBulk download
This source has stopped updating. We keep it listed so you know where the old data lives. Ask for current data.
About this source
| Publisher | Los Angeles Regional Water Quality Control Board |
|---|---|
| Original | https://www.waterboards.ca.gov/rwqcb4/water_issues/programs/stormwater/municipal/regional_permit.html ↗ |
| Place | Los Angeles, California · regional |
| Shelf | Water |
| Formats | PDF; XLSX |
| Update rate | not stated |
| Located by | Watershed management area / permittee |
| Licence | not stated |
| Checked | Verified: opened and matched by a person or our reviewer |
Use it in your product
This source is a web page or document, so there is no API to call. Through SOS.city you still get it in a standard shape:
# Through SOS.city: this source and its neighbours, with publisher, licence and check status
curl https://api.sos.city/v1/sources/726 -H "Authorization: Bearer sos_…"
Same shelf, same place
VerifiedBy address
Drinking Water Watch (SDWIS public portal)
UpdatesNot stated
Last updatedNot stated
Get itWeb page or PDF
ReuseCheck terms
VerifiedAPI · OwnBy address
USGS Water Data API: Monitoring locations and time-series metadata
UpdatesLive or continuous
Last updatedNot stated
Get itOwn API
ReuseCheck terms
VerifiedAPI · OwnBy address
Water Quality Portal (USGS NWIS + EPA WQX/STORET + USDA STEWARDS)
UpdatesNot stated
Last updatedNot stated
Get itOwn API
ReuseCheck terms
Verified
LA's Drinking Water Quality Report (annual Consumer Confidence Report)
UpdatesYearly
Last updated2025
Get itWeb page or PDF
ReuseCheck terms
Verified
Drinking Water Quality Report web summary (dwqr.ladwp.com)
UpdatesYearly
Last updated2025
Get itWeb page or PDF
ReuseCheck terms