Clean Water Act discharge permit · NPDES CAZ502835

MID-VALLEY WATER RECLAMATION PLANT NO. 4, Thermal, CA: NPDES CAZ502835 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

MID-VALLEY WATER RECLAMATION PLANT NO. 4, held by Coachella Valley Water District, holds NPDES permit CAZ502835. EPA’s file records it issued March 21, 2019 and expiring June 30, 2020. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for MID-VALLEY WATER RECLAMATION PLANT NO. 4: its NPDES ID, its permit type and status, its dates, its address in Thermal, California. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES CAZ502835.

Identity

Facility as filed	MID-VALLEY WATER RECLAMATION PLANT NO. 4
Permittee as filed	Coachella Valley Water District
NPDES ID	CAZ502835
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Industrial stormwater
Issued	March 21, 2019
Expiration date	June 30, 2020
Issuing agency	CA Waterboards
Address	Thermal, CA 92274
Receiving water impaired	303(D) Listed
Subwatershed	Guadalupe Creek-Whitewater River (HUC 181002010804)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES CAZ502835.

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES CAZ502835.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, CAZ502835.

Start the watch

How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID CAZ502835 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

Thermal has 1 storm water industrial permit on EPA's NPDES register, and that permit is held by MID-VALLEY WATER RECLAMATION PLANT NO. 4. The Guadalupe Creek-Whitewater River subwatershed holds 2 NPDES permits, including this permit. MID-VALLEY WATER RECLAMATION PLANT NO. 4 has 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.