World wastewater treatment plant observatory · data as reported by each inventory
Wastewater treatment plants in United States · Puerto Rico
45 inventory records · HydroWASTE v1.0 / United States
Data years: 2012. The inventory date does not establish current operation.
HydroWASTE is the available primary source for Puerto Rico, Guam and the US Virgin Islands: reported or estimated population served. It is not added to EPA. The US regulatory reference does not establish applicability to an individual plant.
45 results
Regulatory context
General reference. This is not an exhaustive review of applicable law.
United States: Clean Water Act / NPDES
NPDES regulates pollutant discharges from point sources to waters of the United States. The permit sets limits and monitoring conditions. A CWNS code identifies an inventory record, not an NPDES permit.
- Permit identifier and permitting authority: EPA or an authorized state.
- Outfall and receiving water; sewer connections follow a different control route.
- Current permit conditions, limits and dated measurements; these are not included in CWNS.
References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.