NE / Ponca
NE · Tap water records
Ponca tap water, in plain English
Here is what the EPA's own data shows about tap water in Ponca. According to EPA SDWIS data retrieved June 2026, Ponca is served by 2 active community water systems, together reported to serve about 972 people.
As of June 2026, EPA records show 114 violations across the community water system(s) serving Ponca, going back to the earliest EPA record. 111 of these are classified by the EPA as health-based (a contaminant recorded above the limit the EPA tracks); the rest are monitoring or reporting violations. Each is listed by system below, with its status.
What the EPA has on record, by system
Ponca, City Of
894 served · groundwater · PWSID NE3105106 - Health-based Coliform (TCR): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 4 times between July 2015 and August 2015. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
- Monitoring Coliform (Pre-TCR): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times in December 1982. All have since returned to compliance, per EPA records.
Martinsburg, Village Of
78 served · groundwater · PWSID NE3105108 - Health-based Combined Uranium: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 105 times between January 2015 and October 2023. The EPA record for these does not include a measured level. EPA records do not show all of these as returned to compliance.
- Health-based Nitrate: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 2 times in February 1985. The EPA record lists a level of 32.1 ; the limit (MCL) is 10 . All have since returned to compliance, per EPA records.
- Monitoring Lead and Copper Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in January 1994. All have since returned to compliance, per EPA records.
What this means
A health-based violation means a contaminant was recorded above the limit the EPA tracks for it. A monitoring or reporting violation means a required test or report was late or missed — not that a contaminant was measured above a limit. “Returned to compliance” means the EPA recorded the issue as resolved.
This page summarizes the EPA's own records and does not assess whether your water is safe to drink. For the most current details, you can verify every record directly with the EPA, and contact your water system with questions.
Source: U.S. EPA Envirofacts SDWIS, retrieved June 2026. Records cover the EPA's full reporting history for these systems. Verify at EPA ECHO.