KOURCO ENV SVC INC

NPDES ID: LAG839003

E — SNC: Effluent violation (monthly average limit)

The facility discharged more of a pollutant than its permit allows, based on a monthly average.

Violations

March 31, 2026

Benzene

120% over limit

Discharged 0.011 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

BTEX

18% over limit

Discharged 0.11840001 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Benzene

15% over limit

Discharged 0.00575 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

February 28, 2026

Benzene

50% over limit

Discharged 0.00748 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Benzene

12% over limit

Discharged 0.00558 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

January 31, 2026

Benzene

54% over limit

Discharged 0.00771 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Benzene

7% over limit

Discharged 0.00533875 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

December 31, 2025

Benzene

168% over limit

Discharged 0.0134 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Benzene

35% over limit

Discharged 0.00673 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

November 30, 2025

Benzene

3% over limit

Discharged 0.00516 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Benzene

22% over limit

Discharged 0.00612 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

October 31, 2025

BTEX

80% over limit

Discharged 0.18040001 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

September 30, 2025

Benzene

20% over limit

Discharged 0.006 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Benzene

200% over limit

Discharged 0.015 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

August 31, 2025

Benzene

27% over limit

Discharged 0.00633 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

BTEX

28% over limit

Discharged 0.12843001 mg/L against a permitted limit of 0.1 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Benzene

5% over limit

Discharged 0.00527 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

BTEX

685% over limit

Discharged 0.78455004 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

July 31, 2025

Benzene

186% over limit

Discharged 0.0143 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Benzene

34% over limit

Discharged 0.00668 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

BTEX

292% over limit

Discharged 0.39222002 mg/L against a permitted limit of 0.1 mg/L (MO AVG)

DMR, Limited - Numeric Violation

BTEX

1604% over limit

Discharged 1.70430008 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

April 30, 2025

BTEX

4% over limit

Discharged 0.10411 mg/L against a permitted limit of 0.1 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Benzene

116% over limit

Discharged 0.0108 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

BTEX

803% over limit

Discharged 0.90270004 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Benzene

10% over limit

Discharged 0.00548 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

March 31, 2025

BTEX

194% over limit

Discharged 0.29350001 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

February 28, 2025

Benzene

502% over limit

Discharged 0.0301 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

BTEX

100% over limit

Discharged 0.19999001 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Benzene

63% over limit

Discharged 0.00813 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

January 31, 2025

Benzene

167% over limit

Discharged 0.01335 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

BTEX

1187% over limit

Discharged 1.28700006 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Benzene

2040% over limit

Discharged 0.10700001 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

BTEX

166% over limit

Discharged 0.26572001 mg/L against a permitted limit of 0.1 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Lead, total [as Pb]

8% over limit

Discharged 0.054 mg/L against a permitted limit of 0.05 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

December 31, 2024

BTEX

211% over limit

Discharged 0.31130001 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Benzene

1% over limit

Discharged 0.00503 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Benzene

6% over limit

Discharged 0.0053 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

November 30, 2024

BTEX

1166% over limit

Discharged 1.26640006 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Benzene

837% over limit

Discharged 0.04683 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

BTEX

112% over limit

Discharged 0.21217001 mg/L against a permitted limit of 0.1 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Benzene

5760% over limit

Discharged 0.29300001 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

September 30, 2024

pH

0% over limit

Discharged 9.18 SU against a permitted limit of 9 SU (INST MAX)

DMR, Limited - Numeric Violation

Lead, total [as Pb]

160% over limit

Discharged 0.13000001 mg/L against a permitted limit of 0.05 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

August 31, 2024

Benzene

998% over limit

Discharged 0.05488 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Benzene

5480% over limit

Discharged 0.27900001 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

BTEX

79% over limit

Discharged 0.17895001 mg/L against a permitted limit of 0.1 mg/L (MO AVG)

DMR, Limited - Numeric Violation

BTEX

483% over limit

Discharged 0.58340003 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

July 31, 2024

Benzene

2260% over limit

Discharged 0.11800001 mg/L against a permitted limit of 0.005 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Benzene

409% over limit

Discharged 0.02547 mg/L against a permitted limit of 0.005 mg/L (MO AVG)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (3 months ago)

Last confirmed

July 13, 2026 (23 days ago)