PRASA AGUADILLA WTP
NPDES ID: PR0022918
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
This quarter: 1 effluent violation.
Violations
May 31, 2026
BOD, 5-day, 20 deg. C
81% over limit
Discharged 32.6 mg/L against a permitted limit of 18 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
BOD, 5-day, 20 deg. C
14% over limit
Discharged 20.6 mg/L against a permitted limit of 18 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Sulfide-hydrogen sulfide [undissociated]
45% over limit
Discharged 0.0029 mg/L against a permitted limit of 0.002 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
BOD, 5-day, 20 deg. C
2% over limit
Discharged 18.3 mg/L against a permitted limit of 18 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Color [PT-CO units]
0% over limit
Discharged 20 col unit (pc) against a permitted limit of 15 col unit (pc) (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (12 hours ago)