Clean Water Act discharge permit · NPDES MD0022748
PINTO/MD WATER SERVICES WWTP, Pinto, MD: NPDES MD0022748 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 15Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
PINTO/MD WATER SERVICES WWTP, held by MARYLAND WATER SERVICE, INC., holds NPDES permit MD0022748, which discharges to Trib. To Potomac River. EPA’s file records it issued September 10, 2014 and expiring September 30, 2019. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | PINTO/MD WATER SERVICES WWTP |
|---|---|
| Permittee as filed | MARYLAND WATER SERVICE, INC. |
| NPDES ID | MD0022748 |
| 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 | September 10, 2014 |
| Expiration date | September 30, 2019 |
| Issuing agency | MD DEPARTMENT OF THE ENVIRONMENT |
| Address | Pinto, MD 21556 |
| Receiving water | TRIB. TO POTOMAC RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Mill Run-North Branch Potomac River (HUC 020700020403) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 22Pollutants on file
- 15Under a numeric limit
- 17With a violation of any kind
- 8With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 4 | 75 | 59 | May 31, 2025 | 90% over the limit |
| BOD, 5-day, percent removal | 0 | 5 | 5 | May 31, 2025 | 411% over the limit |
| Solids, suspended percent removal | 0 | 5 | 5 | February 28, 2026 | 73% over the limit |
| pH | 2 | 14 | 4 | February 28, 2021 | |
| Flow, in conduit or thru treatment plant | 4 | 41 | 3 | February 29, 2004 | 38% over the limit |
| Coliform, fecal general | 0 | 8 | 3 | June 30, 2008 | 488% over the limit |
| Oxygen, dissolved [DO] | 1 | 6 | 1 | August 31, 2007 | 6% over the limit |
| Turbidity | 1 | 4 | 1 | March 31, 2002 | |
| Solids, total suspended | 2 | 10 | 0 | ||
| Nitrogen, total [as N] | 3 | 9 | 0 | ||
| Phosphorus, total [as P] | 3 | 9 | 0 | ||
| Flow, total | 1 | 8 | 0 | ||
| Chlorine, total residual | 1 | 6 | 0 | ||
| Benzidine | 0 | 1 | 0 | ||
| Chlordane [tech mix. and metabolites] | 0 | 1 | 0 | ||
| Toxaphene | 0 | 1 | 0 | ||
| Hexachlorobenzene | 0 | 1 | 0 | ||
| Nitrogen, organic total [as N] | 1 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 0 | 0 | ||
| Phosphate, ortho [as P] | 1 | 0 | 0 | ||
| E. coli | 1 | 0 | 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 MD0022748.
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, MD0022748.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 MD0022748 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.