NPDES MDG499914 · Clean Water Act
POTTS & CALLAHAN INC, Baltimore, MD: NPDES MDG499914 discharge permit, effluent exceedances, inspections, penalties
POTTS & CALLAHAN INC, Baltimore, Maryland: General permit coverage MDG499914; Administratively continued; issued April 1, 2016, term to April 1, 2016, by MARYLAND DEPARTMENT OF THE ENVIORMENT.
- pH: 2 limits, 438 violations of any kind.
- Solids, total suspended: 2 limits, 278 violations of any kind.
- Flow, in conduit or thru treatment plant: 2 limits, 246 violations of any kind.
- pH change [range]: 2 limits, 54 violations of any kind.
- Temp. difference, summer [deg. F]: 0 limits, 32 violations of any kind.
- Temperature, summer [deg. F]: 0 limits, 32 violations of any kind.
- Temperature, water deg. fahrenheit: 1 limit, 9 violations of any kind.
POTTS & CALLAHAN INC among its neighbors
43 discharge permits are in the Dead Run-Gywnns Falls subwatershed (HUC 020600030902); MDG499914 is one. Its county: 131, 3 major; MDG499914 is minor permit.
Other permits in the Dead Run-Gywnns Falls subwatershed (HUC 020600030902)
- ABIOMED, Baltimore: MDR003844, minor, term to 2028-01-31
- ADVANCED DEFENSE TECHNOLOGIES, Windsor Mill: MDR003685, minor, term to 2028-01-31
- ASHBURTON FILTRATION PLANT, Baltimore: MD0003034, major, term to 2017-08-31
- BALTIMORE CITY PUBLIC SCHOOLS EDMUNDSON HIGH SCHOOL 400, Baltimore: MDG767322, minor, term to 2027-11-30
- BALTIMORE CITY PUBLIC SCHOOLS FOREST PARK HS 406, Baltimore: MDG767323, minor, term to 2028-01-31
- BRODY TRUCK RENTAL WEST BALTIMORE, Baltimore: MDR003956, minor, term to 2028-01-31
- CAN-DO FUEL OIL CO.,INC., Baltimore: MDG344015, minor, term to 2002-04-22
- CARLISLE ARCHITECTURAL METALS, 1255 S Caton Ave: MDR000122, minor, term to 2030-05-14
- CARROLL AWNING COMPANY, INC., Baltimore: MDR001495, minor, term to 2007-11-30
- CARVER VO-TECH HIGH SCHOOL #454, Baltimore: MDG766903, minor, term to 2012-05-31
Identity
| Facility | POTTS & CALLAHAN INC |
|---|---|
| Permittee | POTTS & CALLAHAN INC |
| NPDES ID | MDG499914 |
| Status | Administratively continued |
| Type | General permit coverage |
| Class | Minor |
| Facility type | Non-POTW |
| Issued | April 1, 2016 |
| Expires | April 1, 2016 |
| Agency | MARYLAND DEPARTMENT OF THE ENVIORMENT |
| Address | Baltimore, MD 21229 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Dead Run-Gywnns Falls (HUC 020600030902) |
NPDES MDG499914: effluent limits and exceedances
POTTS & CALLAHAN INC (NPDES MDG499914): 7 pollutants on file, 5 limited; 7 with a violation of any kind, 0 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| pH | 2 | 438 | 0 | ||
| Solids, total suspended | 2 | 278 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 246 | 0 | ||
| pH change [range] | 2 | 54 | 0 | ||
| Temp. difference, summer [deg. F] | 0 | 32 | 0 | ||
| Temperature, summer [deg. F] | 0 | 32 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 9 | 0 |
NPDES MDG499914: inspections, violations and enforcement
NPDES MDG499914 (POTTS & CALLAHAN INC): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES MDG499914
NPDES MDG499914: one email when its EPA record changes — $99/month.
Permits near NPDES MDG499914
NPDES MDG499914: 7 pollutant rows, 0 dated events; ICIS-NPDES download, loaded September 15, 2026.