OK / Okarche
OK · Tap water records
Okarche tap water, in plain English
Here is what the EPA's own data shows about tap water in Okarche. According to EPA SDWIS data retrieved June 2026, Okarche is served by 2 active community water systems, together reported to serve about 1,360 people.
As of June 2026, EPA records show 263 violations across the community water system(s) serving Okarche, going back to the earliest EPA record. 231 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
Okarche
1,110 served · groundwater · PWSID OK2003703 - Health-based Nitrate-Nitrite: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 80 times between January 2016 and July 2025. The EPA record lists a level of 14 MG/L; the limit (MCL) is 10 MG/L. 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 6 times between April 2001 and October 2001. The EPA record lists a level of 10.8 ; the limit (MCL) is 10 . All have since returned to compliance, per EPA records.
- Monitoring E. COLI: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in March 2017. All have since returned to compliance, per EPA records.
- Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2015. 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 2 times between January 1994 and July 2010. All have since returned to compliance, per EPA records.
- Monitoring Coliform (TCR): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in June 1991. All have since returned to compliance, per EPA records.
Okarche Rwd, Inc
250 served · groundwater · PWSID OK2003715 - Health-based Nitrate-Nitrite: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 90 times between January 2016 and October 2025. The EPA record lists a level of 16 MG/L; the limit (MCL) is 10 MG/L. EPA records do not show all of these as returned to compliance.
- Health-based LEAD AND COPPER RULE REVISIONS: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in October 2024. 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 Vinyl chloride: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 28 times between July 2000 and January 2014. The EPA record lists a level of 0.0034 ; the limit (MCL) is 0 . All have since returned to compliance, per EPA records.
- Health-based Nitrate: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 24 times between January 1988 and October 2003. The EPA record lists a level of 13.996 ; the limit (MCL) is 10 . All have since returned to compliance, per EPA records.
- Health-based Coliform (Pre-TCR): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 2 times between April 1981 and September 1990. The EPA record lists a level of 2 ; the limit (MCL) is 0 . All have since returned to compliance, per EPA records.
- Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 5 times between July 2012 and July 2025. All have since returned to compliance, per EPA records.
- Monitoring Chlorine: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 8 times between July 2023 and November 2024. EPA records do not show all of these as returned to compliance.
- Monitoring LEAD AND COPPER RULE REVISIONS: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in October 2024. EPA records do not show all of these as returned to compliance.
- Monitoring Vinyl chloride: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between July 2009 and July 2011. 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 7 times between January 1994 and January 2010. All have since returned to compliance, per EPA records.
- Monitoring Coliform (TCR): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in August 1991. 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 3 times between October 1980 and April 1981. 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.