Clean Water Act discharge permit · NPDES SC0022900
RIDGEWAY TOWN OF, Ridgeway, SC: NPDES SC0022900 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 14Pollutants under a numeric limit
- 12Pollutants with an effluent exceedance
RIDGEWAY TOWN OF, held by RIDGEWAY, TOWN OF, holds NPDES permit SC0022900, which discharges to Unnamed Trib-Big Cedar-Broad R. EPA’s file records it issued April 22, 2013 and expiring November 30, 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 | RIDGEWAY TOWN OF |
|---|---|
| Permittee as filed | RIDGEWAY, TOWN OF |
| NPDES ID | SC0022900 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 22, 2013 |
| Expiration date | November 30, 2017 |
| Address | Ridgeway, SC 29130 |
| Receiving water | UNNAMED TRIB-BIG CEDAR-BROAD R |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 19Pollutants on file
- 14Under a numeric limit
- 19With a violation of any kind
- 12With 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.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Copper, total [as Cu] | 4 | 45 | 35 | July 31, 2026 | 280% over the limit |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 16 | 13 | October 31, 2025 | 208% over the limit |
| Lead, total [as Pb] | 4 | 26 | 8 | August 31, 2015 | 4,306% over the limit |
| Solids, suspended percent removal | 1 | 15 | 8 | January 31, 2025 | 160% over the limit |
| Nitrogen, ammonia total [as N] | 8 | 38 | 6 | May 31, 2008 | 100% over the limit |
| Coliform, fecal general | 2 | 19 | 5 | October 31, 2014 | 99,999% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 20 | 4 | June 30, 2005 | 317% over the limit |
| Cadmium, total [as Cd] | 4 | 21 | 3 | February 28, 2015 | 233% over the limit |
| Zinc, total [as Zn] | 0 | 17 | 3 | June 30, 2007 | 6% over the limit |
| Oxygen, dissolved [DO] | 1 | 10 | 3 | February 28, 2010 | 41% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 33 | 1 | October 31, 2006 | 15% over the limit |
| pH | 2 | 17 | 1 | May 31, 2007 | |
| Solids, total suspended | 4 | 32 | 0 | ||
| Chlorine, total residual | 4 | 30 | 0 | ||
| Phosphorus, total [as P] | 0 | 26 | 0 | ||
| BOD, 5-day, percent removal | 1 | 7 | 0 | ||
| E. coli | 0 | 4 | 0 | ||
| %Mortality 7Day Chronic Ceriodaphnia dubia | 0 | 3 | 0 | ||
| %Repro Reduc Static Renewal7D Chronic Ceriodaphnia dubia | 0 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| September 30, 2021 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
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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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 SC0022900 there.
Nearby on the register
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- Every permit record in Ridgeway, A to Z
- Discharge permits in South Carolina
- Every permit record in South Carolina, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.