GRAMBLING, CITY OF
NPDES ID: LA0038822
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
This quarter: 13 effluent violations.
Violations
June 30, 2026
Nitrogen, ammonia total [as N]
80% over limit
Discharged 7.18 mg/L against a permitted limit of 4 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
17% over limit
Discharged 0.03178 kg/d against a permitted limit of 0.02724 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
299% over limit
Discharged 7.97 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
42% over limit
Discharged 0.00058112 kg/d against a permitted limit of 0.0004086 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
220% over limit
Discharged 0.00058112 kg/d against a permitted limit of 0.0001816 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
66% over limit
Discharged 664 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
29% over limit
Discharged 14.61879988 kg/d against a permitted limit of 11.3499999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2026
Nitrogen, ammonia total [as N]
22% over limit
Discharged 13.80159988 kg/d against a permitted limit of 11.3499999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
455% over limit
Discharged 11.1 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
158% over limit
Discharged 10.3 mg/L against a permitted limit of 4 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
40% over limit
Discharged 559 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
April 30, 2026
Whole Effluent Toxicity [WET] - C. dubia
69% over limit
Discharged 30 % against a permitted limit of 96 % (MO AV MN)
DMR, Limited - Numeric Violation
Whole Effluent Toxicity [WET] - C. dubia
69% over limit
Discharged 30 % against a permitted limit of 96 % (7 DA MIN)
DMR, Limited - Numeric Violation
March 31, 2026
Whole Effluent Toxicity [WET] - C. dubia
25% over limit
Discharged 72 % against a permitted limit of 96 % (7 DA MIN)
DMR, Limited - Numeric Violation
Whole Effluent Toxicity [WET] - C. dubia
25% over limit
Discharged 72 % against a permitted limit of 96 % (MO AV MN)
DMR, Limited - Numeric Violation
February 28, 2026
Whole Effluent Toxicity [WET] - C. dubia
100% over limit
Discharged 0 % against a permitted limit of 96 % (MO AV MN)
DMR, Limited - Numeric Violation
Whole Effluent Toxicity [WET] - C. dubia
100% over limit
Discharged 0 % against a permitted limit of 96 % (7 DA MIN)
DMR, Limited - Numeric Violation
January 31, 2026
Whole Effluent Toxicity [WET] - C. dubia
100% over limit
Discharged 0 % against a permitted limit of 96 % (7 DA MIN)
DMR, Limited - Numeric Violation
Whole Effluent Toxicity [WET] - C. dubia
100% over limit
Discharged 0 % against a permitted limit of 96 % (MO AV MN)
DMR, Limited - Numeric Violation
December 31, 2025
Whole Effluent Toxicity [WET] - C. dubia
44% over limit
Discharged 54 % against a permitted limit of 96 % (MO AV MN)
DMR, Limited - Numeric Violation
Whole Effluent Toxicity [WET] - C. dubia
44% over limit
Discharged 54 % against a permitted limit of 96 % (7 DA MIN)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
175% over limit
Discharged 0.0004994 kg/d against a permitted limit of 0.0001816 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
22% over limit
Discharged 0.0004994 kg/d against a permitted limit of 0.0004086 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
108% over limit
Discharged 0.05675 kg/d against a permitted limit of 0.02724 kg/d (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (7 DA MIN)
DMR, Monitor Only - Overdue
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (MO AV MN)
DMR, Monitor Only - Overdue
Whole Effluent Toxicity [WET] - C. dubia
0% over limit
Discharged 0 % against a permitted limit of 96 % (MO AV MN)
DMR, Limited - Overdue
Whole Effluent Toxicity [WET] - C. dubia
0% over limit
Discharged 0 % against a permitted limit of 96 % (7 DA MIN)
DMR, Limited - Overdue
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia
0% over limit
Discharged 0 % against a permitted limit of 0 % (7 DA MIN)
DMR, Monitor Only - Overdue
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (MO AV MN)
DMR, Monitor Only - Overdue
Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia
0% over limit
Discharged 0 % against a permitted limit of 0 % (MAXIMUM)
DMR, Monitor Only - Overdue
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia
0% over limit
Discharged 0 % against a permitted limit of 0 % (MO AV MN)
DMR, Monitor Only - Overdue
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia
0% over limit
Discharged 0 % against a permitted limit of 0 % (7 DA MIN)
DMR, Monitor Only - Overdue
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (7 DA MIN)
DMR, Monitor Only - Overdue
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia
0% over limit
Discharged 0 % against a permitted limit of 0 % (MO AV MN)
DMR, Monitor Only - Overdue
October 31, 2025
Whole Effluent Toxicity [WET] - P. promelas
69% over limit
Discharged 30 % against a permitted limit of 96 % (MO AV MN)
DMR, Limited - Numeric Violation
Whole Effluent Toxicity [WET] - P. promelas
69% over limit
Discharged 30 % against a permitted limit of 96 % (7 DA MIN)
DMR, Limited - Numeric Violation
September 30, 2025
Copper, total [as Cu]
75% over limit
Discharged 0.04767 kg/d against a permitted limit of 0.02724 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Whole Effluent Toxicity [WET] - C. dubia
25% over limit
Discharged 72 % against a permitted limit of 96 % (MO AV MN)
DMR, Limited - Numeric Violation
Whole Effluent Toxicity [WET] - C. dubia
25% over limit
Discharged 72 % against a permitted limit of 96 % (7 DA MIN)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
22% over limit
Discharged 0.0004994 kg/d against a permitted limit of 0.0004086 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
175% over limit
Discharged 0.0004994 kg/d against a permitted limit of 0.0001816 kg/d (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Solids, total suspended
17% over limit
Discharged 26.8 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
31% over limit
Discharged 19.6 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Whole Effluent Toxicity [WET] - C. dubia
25% over limit
Discharged 72 % against a permitted limit of 96 % (7 DA MIN)
DMR, Limited - Numeric Violation
Whole Effluent Toxicity [WET] - C. dubia
25% over limit
Discharged 72 % against a permitted limit of 96 % (MO AV MN)
DMR, Limited - Numeric Violation
June 30, 2025
Copper, total [as Cu]
23% over limit
Discharged 0.033596 kg/d against a permitted limit of 0.02724 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
125% over limit
Discharged 0.0004086 kg/d against a permitted limit of 0.0001816 kg/d (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Whole Effluent Toxicity [WET] - P. promelas
100% over limit
Discharged 0 % against a permitted limit of 96 % (7 DA MIN)
DMR, Limited - Numeric Violation
Whole Effluent Toxicity [WET] - P. promelas
100% over limit
Discharged 0 % against a permitted limit of 96 % (MO AV MN)
DMR, Limited - Numeric Violation
April 30, 2025
Whole Effluent Toxicity [WET] - P. promelas
0% over limit
Discharged 0 % against a permitted limit of 96 % (MO AV MN)
DMR, Limited - Overdue
Coliform, fecal general
12% over limit
Discharged 448 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
Whole Effluent Toxicity [WET] - P. promelas
0% over limit
Discharged 0 % against a permitted limit of 96 % (7 DA MIN)
DMR, Limited - Overdue
Coef Of Var Static Renewal 7Day Chronic Pimephales promelas
0% over limit
Discharged 0 % against a permitted limit of 0 % (MAXIMUM)
DMR, Monitor Only - Overdue
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (7 DA MIN)
DMR, Monitor Only - Overdue
Pass/Fail Static Renewal 7Day Chronic Pimephales promelas
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (7 DA MIN)
DMR, Monitor Only - Overdue
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (MO AV MN)
DMR, Monitor Only - Overdue
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas
0% over limit
Discharged 0 % against a permitted limit of 0 % (MO AV MN)
DMR, Monitor Only - Overdue
Pass/Fail Static Renewal 7Day Chronic Pimephales promelas
0% over limit
Discharged 0 pass=0;fail=1 against a permitted limit of 0 pass=0;fail=1 (MO AV MN)
DMR, Monitor Only - Overdue
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas
0% over limit
Discharged 0 % against a permitted limit of 0 % (MO AV MN)
DMR, Monitor Only - Overdue
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas
0% over limit
Discharged 0 % against a permitted limit of 0 % (7 DA MIN)
DMR, Monitor Only - Overdue
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas
0% over limit
Discharged 0 % against a permitted limit of 0 % (7 DA MIN)
DMR, Monitor Only - Overdue
March 31, 2025
Mercury, total [as Hg]
115% over limit
Discharged 0.00039044 kg/d against a permitted limit of 0.0001816 kg/d (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Whole Effluent Toxicity [WET] - P. promelas
25% over limit
Discharged 72 % against a permitted limit of 96 % (7 DA MIN)
DMR, Limited - Numeric Violation
Whole Effluent Toxicity [WET] - P. promelas
25% over limit
Discharged 72 % against a permitted limit of 96 % (MO AV MN)
DMR, Limited - Numeric Violation
October 31, 2024
Whole Effluent Toxicity [WET] - P. promelas
25% over limit
Discharged 72 % against a permitted limit of 96 % (MO AV MN)
DMR, Limited - Numeric Violation
Whole Effluent Toxicity [WET] - P. promelas
25% over limit
Discharged 72 % against a permitted limit of 96 % (7 DA MIN)
DMR, Limited - Numeric Violation
September 30, 2024
Mercury, total [as Hg]
200% over limit
Discharged 0.0005448 kg/d against a permitted limit of 0.0001816 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
33% over limit
Discharged 0.0005448 kg/d against a permitted limit of 0.0004086 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
17% over limit
Discharged 0.03178 kg/d against a permitted limit of 0.02724 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Total phenols
473% over limit
Discharged 4.15863997 kg/d against a permitted limit of 0.72639999 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Total phenols
1209% over limit
Discharged 4.15863997 kg/d against a permitted limit of 0.3178 kg/d (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (2 hours ago)