CHISHOLM SPRINGS WWTP
NPDES ID: TX0119687
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: 1 effluent violation.
Violations
April 30, 2026
BOD, carbonaceous [5 day, 20 C]
5% over limit
Discharged 5.25 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total suspended
67% over limit
Discharged 8.33 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrate nitrogen, dry weight
4% over limit
Discharged 5.18 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
84% over limit
Discharged 9.2 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
34% over limit
Discharged 2.67 mg/L against a permitted limit of 2 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
10% over limit
Discharged 5.5 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, ammonia total [as N]
32% over limit
Discharged 19.8 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
470% over limit
Discharged 11.4 mg/L against a permitted limit of 2 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
261% over limit
Discharged 6.21979995 kg/d against a permitted limit of 1.72519999 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
July 31, 2025
Solids, total suspended
13% over limit
Discharged 5.67 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
289% over limit
Discharged 6.71919994 kg/d against a permitted limit of 1.72519999 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
29% over limit
Discharged 6.44 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
63% over limit
Discharged 24.5 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
878% over limit
Discharged 19.55 mg/L against a permitted limit of 2 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
February 28, 2025
Nitrogen, ammonia total [as N]
273% over limit
Discharged 6.42863995 kg/d against a permitted limit of 1.72519999 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
394% over limit
Discharged 9.88 mg/L against a permitted limit of 2 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
12% over limit
Discharged 5.6 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
76% over limit
Discharged 8.8 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
13% over limit
Discharged 17 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
January 31, 2025
Solids, total suspended
46% over limit
Discharged 7.32 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
856% over limit
Discharged 19.12 mg/L against a permitted limit of 2 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
7% over limit
Discharged 32.1 mg/L against a permitted limit of 30 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
31% over limit
Discharged 19.6 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Solids, total suspended
5% over limit
Discharged 4.47189996 kg/d against a permitted limit of 4.26759996 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
365% over limit
Discharged 8.02671993 kg/d against a permitted limit of 1.72519999 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
107% over limit
Discharged 10.37 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
117% over limit
Discharged 65 mg/L against a permitted limit of 30 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
December 31, 2024
Nitrogen, ammonia total [as N]
212% over limit
Discharged 6.23 mg/L against a permitted limit of 2 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
26% over limit
Discharged 2.17919998 kg/d against a permitted limit of 1.72519999 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
November 30, 2024
Nitrate nitrogen, dry weight
56% over limit
Discharged 7.82 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
43% over limit
Discharged 1.43 mg/L against a permitted limit of 1 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrate nitrogen, dry weight
65% over limit
Discharged 24.8 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
October 31, 2024
BOD, carbonaceous [5 day, 20 C]
35% over limit
Discharged 6.75 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
48% over limit
Discharged 7.39 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
136% over limit
Discharged 70.8 mg/L against a permitted limit of 30 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
E. coli
47% over limit
Discharged 185 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
37% over limit
Discharged 548 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
Solids, total suspended
190% over limit
Discharged 12.3941999 kg/d against a permitted limit of 4.26759996 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
September 30, 2024
Chlorine, total residual
2% over limit
Discharged 4.06 mg/L against a permitted limit of 4 mg/L (MO MAX)
DMR, Limited - Numeric Violation
August 31, 2024
Nitrogen, ammonia total [as N]
157% over limit
Discharged 4.44011996 kg/d against a permitted limit of 1.72519999 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
62% over limit
Discharged 1.62 mg/L against a permitted limit of 1 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
21% over limit
Discharged 18.2 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Solids, total suspended
4% over limit
Discharged 5.18 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Chlorine, total residual
10% over limit
Discharged 4.39 mg/L against a permitted limit of 4 mg/L (MO MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
340% over limit
Discharged 8.8 mg/L against a permitted limit of 2 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)