GRANSTSVILLE WTP
NPDES ID: MD0063274
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
This quarter: 9 effluent violations.
Violations
June 30, 2026
pH
0% over limit
Discharged 6.4 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
Chlorine, total residual
310% over limit
Discharged 0.41 mg/L against a permitted limit of 0.1 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
May 31, 2026
Iron, total [as Fe]
9% over limit
Discharged 3.27 mg/L against a permitted limit of 3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chlorine, total residual
880% over limit
Discharged 0.98 mg/L against a permitted limit of 0.1 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
Iron, total [as Fe]
64% over limit
Discharged 3.27 mg/L against a permitted limit of 2 mg/L (QRTR AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 5.94 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
April 30, 2026
Iron, total [as Fe]
15% over limit
Discharged 2.29 mg/L against a permitted limit of 2 mg/L (QRTR AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 6.34 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
Chlorine, total residual
160% over limit
Discharged 0.26 mg/L against a permitted limit of 0.1 mg/L (MAXIMUM)
DMR, Limited - Numeric Violation
February 28, 2026
pH
0% over limit
Discharged 6.31 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
December 31, 2025
pH
0% over limit
Discharged 6.4 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
November 30, 2025
pH
0% over limit
Discharged 6.4 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (4 hours ago)