NAVAL SURFACE WARFARE CENTER CARDEROCK DIVISION
NPDES ID: PA0036447
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
This quarter: 22 reporting violations.
Violations
March 31, 2026
Temperature, water deg. fahrenheit
0% over limit
Discharged 0 deg F against a permitted limit of 0 deg F (INST MAX)
DMR, Monitor Only - Overdue
Temperature, water deg. fahrenheit
0% over limit
Discharged 0 deg F against a permitted limit of 0 deg F (INST MAX)
DMR, Monitor Only - Overdue
Temperature, water deg. fahrenheit
0% over limit
Discharged 0 deg F against a permitted limit of 110 deg F (INST MAX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Overdue
Temperature, water deg. fahrenheit
0% over limit
Discharged 0 deg F against a permitted limit of 0 deg F (DAILY MX)
DMR, Monitor Only - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 1.6 mg/L (INST MAX)
DMR, Limited - Overdue
Temperature, water deg. fahrenheit
0% over limit
Discharged 0 deg F against a permitted limit of 0 deg F (INST MIN)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Iron, total [as Fe]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0 mg/L against a permitted limit of 1.2 mg/L (INST MAX)
DMR, Limited - Overdue
Temp. diff. between samp. & upstrm deg. F
0% over limit
Discharged 0 deg F against a permitted limit of 3 deg F (INST MAX)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 750 mg/L (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Temperature, water deg. fahrenheit
0% over limit
Discharged 0 deg F against a permitted limit of 110 deg F (INST MAX)
DMR, Limited - Overdue
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (3 hours ago)