Clean Water Act discharge permit · NPDES CA0108031
FALLBROOK WRP AND SANTA MARGARITA GTP, Fallbrook, CA: NPDES CA0108031 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 95Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
FALLBROOK WRP AND SANTA MARGARITA GTP, held by Fallbrook Public Utility District, holds NPDES permit CA0108031, which discharges to Pacific Ocean. EPA’s file records it issued August 8, 2012 and expiring September 27, 2017. 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.
Identity
| Facility as filed | FALLBROOK WRP AND SANTA MARGARITA GTP |
|---|---|
| Permittee as filed | Fallbrook Public Utility District |
| NPDES ID | CA0108031 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | August 8, 2012 |
| Expiration date | September 27, 2017 |
| Address | Fallbrook, CA 92028 |
| Receiving water | Pacific Ocean |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 126Pollutants on file
- 95Under a numeric limit
- 123With a violation of any kind
- 7With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant; the 60 with the most exceedances of 126 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Heptachlor epoxide | 2 | 39 | 8 | April 30, 2026 | 342,400% over the limit |
| Solids, settleable | 3 | 18 | 6 | August 31, 2025 | 99,999% over the limit |
| Heptachlor | 2 | 36 | 5 | December 31, 2025 | 72,055% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 38 | 4 | May 31, 2023 | 99,999% over the limit |
| pH | 2 | 14 | 4 | August 31, 2024 | |
| Chlorine, total residual | 10 | 145 | 3 | April 30, 2016 | 417% over the limit |
| TU Static 72Hr Chronic Strongyl. purpuratus | 0 | 1 | 1 | December 31, 2007 | 191% over the limit |
| Oil and grease | 5 | 105 | 0 | ||
| Oil & Grease | 0 | 84 | 0 | ||
| Nitrogen, ammonia total [as N] | 5 | 56 | 0 | ||
| Solids, total suspended | 6 | 34 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 20 | 0 | ||
| Iron, dissolved [as Fe] | 0 | 15 | 0 | ||
| Nitrogen, nitrite total [as NO2] | 0 | 15 | 0 | ||
| Turbidity | 3 | 14 | 0 | ||
| Carbon, dissolved inorganic [as C] | 0 | 13 | 0 | ||
| Nitrogen, ammonia total [as NH4] | 0 | 13 | 0 | ||
| Alkalinity, total [as CaCO3] | 0 | 12 | 0 | ||
| Nitrogen, organic total [as N] | 0 | 12 | 0 | ||
| Phosphate, total [as PO4] | 0 | 12 | 0 | ||
| Phosphorus, total [as P] | 0 | 12 | 0 | ||
| Carbon, tot organic [TOC] | 0 | 12 | 0 | ||
| Nitrogen, nitrate total [as NO3] | 0 | 11 | 0 | ||
| Chromium, hexavalent [as Cr] | 5 | 10 | 0 | ||
| Nitrogen, total [as N] | 0 | 10 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 8 | 0 | ||
| Chronic Mthd Larval Development Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Stat72hr S purpuratus | 0 | 8 | 0 | ||
| Chronic Mthd Larval Development Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Stat72hr D excentricus | 0 | 8 | 0 | ||
| Cyanide, total [as CN] | 5 | 7 | 0 | ||
| Arsenic, total recoverable | 5 | 7 | 0 | ||
| Selenium, total recoverable | 5 | 7 | 0 | ||
| Nickel, total recoverable | 5 | 7 | 0 | ||
| Silver total recoverable | 5 | 7 | 0 | ||
| Zinc, total recoverable | 5 | 7 | 0 | ||
| Cadmium, total recoverable | 5 | 7 | 0 | ||
| Lead, total recoverable | 5 | 7 | 0 | ||
| Copper, total recoverable | 5 | 7 | 0 | ||
| Endosulfan, total | 5 | 7 | 0 | ||
| Endrin | 5 | 7 | 0 | ||
| Mercury, total recoverable | 5 | 7 | 0 | ||
| Phenols, chlorinated | 5 | 7 | 0 | ||
| Hexachlorocyclohexane, total | 5 | 7 | 0 | ||
| Phenolic compounds, unchlorinated | 5 | 7 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 1 | 5 | 0 | ||
| Solids, suspended percent removal | 1 | 5 | 0 | ||
| Tributyltin | 2 | 4 | 0 | ||
| Chloroform | 2 | 4 | 0 | ||
| Toluene | 2 | 4 | 0 | ||
| 1,4-Dichlorobenzene | 2 | 4 | 0 | ||
| Halomethanes | 2 | 4 | 0 | ||
| Temperature, water deg. centigrade | 0 | 4 | 0 | ||
| BOD, 5-day, 20 deg. C | 0 | 4 | 0 | ||
| Chromium, total recoverable | 0 | 4 | 0 | ||
| Chromium, trivalent [as Cr] | 2 | 3 | 0 | ||
| Dichlorobromomethane | 2 | 3 | 0 | ||
| Carbon tetrachloride | 2 | 3 | 0 | ||
| 1,2-Dichloroethane | 2 | 3 | 0 | ||
| Dibromochloromethane | 2 | 3 | 0 | ||
| Benzene | 2 | 3 | 0 | ||
| Acrolein | 2 | 3 | 0 |
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 CA0108031.
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.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.