LEHIGH CNTY AUTH-SAND SPRINGS WWTP
NPDES ID: PA0034029
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 8 effluent violations.
Violations
May 31, 2026
Nitrogen, ammonia total [as N]
2622% over limit
Discharged 4.44919996 kg/d against a permitted limit of 0.16344 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
2% over limit
Discharged 2.04299998 kg/d against a permitted limit of 1.99759998 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1113% over limit
Discharged 36.4 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
98% over limit
Discharged 4.85779996 kg/d against a permitted limit of 2.45159998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
13% over limit
Discharged 17 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Nitrogen, ammonia total [as N]
279% over limit
Discharged 34.1 mg/L against a permitted limit of 9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
745% over limit
Discharged 4.22219996 kg/d against a permitted limit of 0.4994 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
107% over limit
Discharged 5.08479996 kg/d against a permitted limit of 2.45159998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, ammonia total [as N]
618% over limit
Discharged 3.58659997 kg/d against a permitted limit of 0.4994 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
74% over limit
Discharged 4.26759996 kg/d against a permitted limit of 2.45159998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
214% over limit
Discharged 28.3 mg/L against a permitted limit of 9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
336% over limit
Discharged 2.17919998 kg/d against a permitted limit of 0.4994 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
63% over limit
Discharged 3.99519997 kg/d against a permitted limit of 2.45159998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
90% over limit
Discharged 17.1 mg/L against a permitted limit of 9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
14% over limit
Discharged 10.3 mg/L against a permitted limit of 9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
127% over limit
Discharged 1.13499999 kg/d against a permitted limit of 0.4994 kg/d (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, total [as N]
4% over limit
Discharged 2.54239998 kg/d against a permitted limit of 2.45159998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, nitrate total [as N]
2% over limit
Discharged 2.08839998 kg/d against a permitted limit of 2.04299998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, total [as N]
24% over limit
Discharged 3.04179997 kg/d against a permitted limit of 2.45159998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
956% over limit
Discharged 1.72519999 kg/d against a permitted limit of 0.16344 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
320% over limit
Discharged 12.6 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Nitrogen, ammonia total [as N]
622% over limit
Discharged 1.18039999 kg/d against a permitted limit of 0.16344 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
26% over limit
Discharged 3.08719997 kg/d against a permitted limit of 2.45159998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
767% over limit
Discharged 8665 MPN/100mL against a permitted limit of 1000 MPN/100mL (INST MAX)
DMR, Limited - Numeric Violation
Solids, total suspended
20% over limit
Discharged 18 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
32% over limit
Discharged 2.63319998 kg/d against a permitted limit of 1.99759998 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
157% over limit
Discharged 7.7 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Phosphorus, total [as P]
98% over limit
Discharged 0.51302 kg/d against a permitted limit of 0.25878 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total [as Zn]
4% over limit
Discharged 0.157 mg/L against a permitted limit of 0.151 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 246 MPN/100mL against a permitted limit of 2000 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 12098 MPN/100mL against a permitted limit of 10000 MPN/100mL (INST MAX)
DMR, Limited - Numeric Violation
February 28, 2025
Phosphorus, total [as P]
5% over limit
Discharged 0.2724 kg/d against a permitted limit of 0.25878 kg/d (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
BOD, carbonaceous [5 day, 20 C]
8% over limit
Discharged 4.31299996 kg/d against a permitted limit of 3.99519997 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
22% over limit
Discharged 2.99639997 kg/d against a permitted limit of 2.45159998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
3% over limit
Discharged 31 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, nitrate total [as N]
7% over limit
Discharged 2.17919998 kg/d against a permitted limit of 2.04299998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Nitrogen, ammonia total [as N]
264% over limit
Discharged 1.81599998 kg/d against a permitted limit of 0.4994 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
38% over limit
Discharged 12.4 mg/L against a permitted limit of 9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
70% over limit
Discharged 4.17679996 kg/d against a permitted limit of 2.45159998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Nitrogen, ammonia total [as N]
73% over limit
Discharged 5.2 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
69% over limit
Discharged 2.22459998 kg/d against a permitted limit of 1.31659999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
23% over limit
Discharged 0.3178 kg/d against a permitted limit of 0.25878 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
344% over limit
Discharged 0.72639999 kg/d against a permitted limit of 0.16344 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
56% over limit
Discharged 15.6 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
13% over limit
Discharged 17 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
23% over limit
Discharged 2.45159998 kg/d against a permitted limit of 1.99759998 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Nitrogen, ammonia total [as N]
1539% over limit
Discharged 2.67859998 kg/d against a permitted limit of 0.16344 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
10% over limit
Discharged 219 MPN/100mL against a permitted limit of 200 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
563% over limit
Discharged 19.9 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
13% over limit
Discharged 17 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
278% over limit
Discharged 3780 MPN/100mL against a permitted limit of 1000 MPN/100mL (INST MAX)
DMR, Limited - Numeric Violation
August 31, 2024
Coliform, fecal general
Limit violation
Discharged 44 MPN/100mL against a permitted limit of 200 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
2% over limit
Discharged 5.91 mg/L against a permitted limit of 6 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
706% over limit
Discharged 1.31659999 kg/d against a permitted limit of 0.16344 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2420 MPN/100mL against a permitted limit of 1000 MPN/100mL (INST MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
227% over limit
Discharged 9.8 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (5 days ago)