PRASA MAMEYES ARRIBA WTP
NPDES ID: PR0025224
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
April 30, 2026
Lead, total [as Pb]
653% over limit
Discharged 0.01039 mg/L against a permitted limit of 0.00138 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Lead, total [as Pb]
1% over limit
Discharged 0.0014 mg/L against a permitted limit of 0.00138 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Lead, total [as Pb]
36% over limit
Discharged 0.00188 mg/L against a permitted limit of 0.00138 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Lead, total [as Pb]
151% over limit
Discharged 0.00346 mg/L against a permitted limit of 0.00138 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Lead, total [as Pb]
28% over limit
Discharged 0.00177 mg/L against a permitted limit of 0.00138 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Lead, total [as Pb]
85% over limit
Discharged 0.00255 mg/L against a permitted limit of 0.00138 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2025
BOD, 5-day, 20 deg. C
109% over limit
Discharged 33 mg/L against a permitted limit of 15.8 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Sulfate, total [as SO4]
56% over limit
Discharged 389.73 mg/L against a permitted limit of 250 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Lead, total [as Pb]
662% over limit
Discharged 0.01051 mg/L against a permitted limit of 0.00138 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2024
Lead, total [as Pb]
1195% over limit
Discharged 0.01787 mg/L against a permitted limit of 0.00138 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2024
Lead, total [as Pb]
2% over limit
Discharged 0.00141 mg/L against a permitted limit of 0.00138 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
463% over limit
Discharged 89 mg/L against a permitted limit of 15.8 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (5 days ago)