CITY OF LA VILLA WWTF
NPDES ID: TX0133302
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: 6 effluent violations.
Violations
June 30, 2026
Nitrogen, ammonia total [as N]
58% over limit
Discharged 3.58659997 kg/d against a permitted limit of 2.26999998 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
10% over limit
Discharged 0.22 MGD against a permitted limit of 0.2 MGD (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
30% over limit
Discharged 3.9 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
May 31, 2026
Nitrogen, ammonia total [as N]
82% over limit
Discharged 5.45 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
113% over limit
Discharged 4.83055996 kg/d against a permitted limit of 2.26999998 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
19% over limit
Discharged 0.237 MGD against a permitted limit of 0.2 MGD (DAILY AV)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
3% over limit
Discharged 3.1 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
August 31, 2025
Nitrogen, ammonia total [as N]
3% over limit
Discharged 3.1 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, total suspended
10% over limit
Discharged 16.5 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
February 28, 2025
Nitrogen, ammonia total [as N]
15% over limit
Discharged 3.45 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
November 30, 2024
Nitrogen, ammonia total [as N]
100% over limit
Discharged 6.01 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
October 31, 2024
Nitrogen, ammonia total [as N]
101% over limit
Discharged 6.039 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
August 31, 2024
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 6.5 mg/L against a permitted limit of 35 mg/L (SINGGRAB)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.1 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 1.27119999 kg/d against a permitted limit of 7.71799994 kg/d (DAILY AV)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.183634 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.63559999 kg/d against a permitted limit of 2.26999998 kg/d (DAILY AV)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 1 mg/L against a permitted limit of 1 mg/L (MO MIN)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 13 mg/L against a permitted limit of 60 mg/L (SINGGRAB)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 1 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 2.2 mg/L against a permitted limit of 4 mg/L (MO MAX)
DMR, Limited - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 6.5 mg/L against a permitted limit of 4 mg/L (MO MIN)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 2 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.06 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 1 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 4.08599997 kg/d against a permitted limit of 11.3499999 kg/d (DAILY AV)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.139146 MGD against a permitted limit of 0.2 MGD (DAILY AV)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.6 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 3.9 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 2.7 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Overdue
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (4 hours ago)