Nrg Energy, Inc water system
PWSID DE0000543 · Millsboro, DE. EPA's record of drinking water violations for this public water system, as retrieved October 14, 2026.
How to read this. This page copies EPA's record for one public water system from the Safe Drinking Water Information System (SDWIS), without interpretation. A violation is recorded when a water system breaks a federal or state drinking water rule. A health-based violation means a contaminant went over a federal limit or a required treatment step was not met. Most other violations are tests or reports that were missed or late. A returned to compliance date means the state recorded the violation as resolved. A past violation does not describe the water today. EPA updates this data about every three months, so the newest violations may not appear yet. Delaware's Office of Drinking Water regulates this system; if this page and the state's records differ, the state is right and we fix this page. We rank no water system and draw no conclusions.
System facts
| Name in EPA records | NRG ENERGY, INC |
|---|---|
| Public water system ID (PWSID) | DE0000543 |
| System type | Non-transient non-community water system |
| Status | Changed from public to non-public (EPA deactivation date December 23, 2025) |
| County served | Sussex |
| City or town served | Millsboro |
| People served (EPA figure) | 178 |
| Primary water source | Ground water |
Source: EPA SDWIS water system record and area served, Delaware systems, retrieved October 14, 2026. Full EPA report: EPA ECHO report for DE0000543.
Violations on record
EPA SDWIS lists 25 violations for this system: 22 health-based and 0 with no return-to-compliance date recorded. Newest first.
| Compliance period began | Period ended | Rule or contaminant (EPA wording) | Category | Health-based | Returned to compliance |
|---|---|---|---|---|---|
| January 1, 1994 | Not listed | Lead and Copper Rule | Monitoring and reporting (MR) | No | December 23, 2025 |
| July 1, 1993 | Not listed | Lead and Copper Rule | Monitoring and reporting (MR) | No | December 23, 2025 |
| July 1, 1993 | Not listed | Lead and Copper Rule | Monitoring and reporting (MR) | No | August 29, 1995 |
| September 16, 1986 | December 15, 1986 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| May 22, 1986 | August 21, 1986 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| March 14, 1986 | June 13, 1986 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| October 10, 1985 | January 9, 1986 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| July 16, 1985 | October 15, 1985 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| April 19, 1985 | July 18, 1985 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| January 14, 1985 | April 13, 1985 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| October 1, 1984 | December 31, 1984 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| July 1, 1984 | September 30, 1984 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| March 1, 1984 | May 31, 1984 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| November 4, 1983 | February 3, 1984 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| February 25, 1983 | May 24, 1983 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| November 23, 1982 | February 22, 1983 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| August 13, 1982 | November 12, 1982 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| May 6, 1982 | August 5, 1982 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| February 9, 1982 | May 8, 1982 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| November 9, 1981 | February 8, 1982 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| August 24, 1981 | November 23, 1981 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| May 6, 1981 | August 5, 1981 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| January 9, 1981 | April 8, 1981 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| October 28, 1980 | January 27, 1981 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
| April 29, 1980 | September 28, 1980 | Nitrate | Maximum contaminant level (MCL) | Yes | December 23, 2025 |
Source: EPA SDWIS violation records, Delaware systems, retrieved October 14, 2026. Rule and contaminant names: EPA ECHO contaminant list. A blank end date or return-to-compliance date means EPA's record has none. For enforcement actions and the latest status, see the EPA ECHO report for this system.
Get this system's water quality report
Every community water system must give its customers a yearly water quality report, called a Consumer Confidence Report (CCR). It lists the contaminants found in the water and the federal limit for each. To get it, ask your water supplier (the contact is on your water bill) or check its website. EPA: how to find and read your CCR.
Delaware's Office of Drinking Water (Division of Public Health) regulates public water systems in the state and can answer questions about this system. The state also publishes system records in Drinking Water Watch.