Hennessey, OK
Contamination score
Higher = more contaminated vs. other cities.
Share this with friends & family you care about ❤️
Help someone you love know what's in their water — we'll email them Hennessey's report. No sign-ups, no list.
Reported illness & cancer claims
No claims reported yet. Be the first to add one.
Claims are aggregated from public records and community reports and may be unverified. If you believe your illness is linked to local water, request a consultation.
Self-reported issues
No issues reported yet. Be the first to report one.
Pollution sources & reported claims near your water
Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.
Get water alerts for Hennessey, OK
We'll email you when a new violation, lawsuit, or health report appears for Hennessey's water. Free, unsubscribe anytime.

Public water systems
HENNESSEY
- PWSID:
- OK2003704
- Source:
- Ground water
- Serves:
- 2,058 people
EPA & DEP violations
HENNESSEY
PWSID OK200370452 violationsMonitoring violation — HENNESSEY
low severityOpenEPA SDWIS violation 288376 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 2025 · 1 year ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288347 (code 52) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗
MCL exceedance — HENNESSEY
high severityHealth-basedResolvedEPA SDWIS violation 288362 (code 01) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · MCL exceedance · Began Jan 1, 2022 · 4 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288363 (code 56) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288364 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288365 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288366 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288367 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288368 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288369 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288370 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288371 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288372 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288373 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288348 (code 56) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jul 1, 2021 · 5 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityOpenEPA SDWIS violation 288349 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jul 1, 2021 · 5 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityOpenEPA SDWIS violation 288350 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jul 1, 2021 · 5 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityOpenEPA SDWIS violation 288351 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jul 1, 2021 · 5 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityOpenEPA SDWIS violation 288352 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jul 1, 2021 · 5 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityOpenEPA SDWIS violation 288353 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jul 1, 2021 · 5 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288354 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jul 1, 2021 · 5 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288355 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jul 1, 2021 · 5 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288356 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jul 1, 2021 · 5 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288357 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jul 1, 2021 · 5 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288358 (code 53) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jul 1, 2021 · 5 years ago · Source ↗
MCL exceedance — HENNESSEY
high severityHealth-basedResolvedEPA SDWIS violation 288342 (code 01) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · MCL exceedance · Began Jul 1, 2020 · 6 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288340 (code 03) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Oct 1, 2019 · 6 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288339 (code 27) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 2019 · 7 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288336 (code 34) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Oct 24, 2018 · 7 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288334 (code 3A) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Nov 1, 2017 · 8 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288332 (code 27) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Oct 1, 2017 · 8 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288330 (code 03) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jul 1, 2017 · 9 years ago · Source ↗
Other violation — HENNESSEY
low severityResolvedEPA SDWIS violation 288329 (code 71) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Other violation · Began Jul 1, 2016 · 10 years ago · Source ↗
MCL exceedance — HENNESSEY
high severityHealth-basedResolvedEPA SDWIS violation 288321 (code 01) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · MCL exceedance · Began Oct 1, 2014 · 11 years ago · Source ↗
MCL exceedance — HENNESSEY
high severityHealth-basedResolvedEPA SDWIS violation 288318 (code 01) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · MCL exceedance · Began Jan 1, 2014 · 12 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 285898 (code 23) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Sep 1, 1998 · 27 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 285698 (code 23) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Aug 1, 1998 · 28 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 12498 (code 23) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Nov 1, 1997 · 28 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 69697 (code 23) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jun 1, 1997 · 29 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 35897 (code 23) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 1997 · 29 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 10597 (code 23) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Nov 1, 1996 · 29 years ago · Source ↗
MCL exceedance — HENNESSEY
high severityHealth-basedResolvedEPA SDWIS violation 59596 (code 22) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · MCL exceedance · Began Jun 1, 1996 · 30 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 29696 (code 23) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Jan 1, 1996 · 30 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 35495 (code 23) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Feb 1, 1995 · 31 years ago · Source ↗
MCL exceedance — HENNESSEY
high severityHealth-basedResolvedEPA SDWIS violation 62492 (code 21) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · MCL exceedance · Began May 1, 1992 · 34 years ago · Source ↗
MCL exceedance — HENNESSEY
high severityHealth-basedResolvedEPA SDWIS violation 18092 (code 21) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · MCL exceedance · Began Dec 1, 1991 · 34 years ago · Source ↗
MCL exceedance — HENNESSEY
high severityHealth-basedResolvedEPA SDWIS violation 190 (code 02) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · MCL exceedance · Began Aug 1, 1990 · 36 years ago · Source ↗
MCL exceedance — HENNESSEY
high severityHealth-basedResolvedEPA SDWIS violation 289 (code 02) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · MCL exceedance · Began May 1, 1989 · 37 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 287 (code 03) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Feb 1, 1987 · 39 years ago · Source ↗
MCL exceedance — HENNESSEY
high severityHealth-basedResolvedEPA SDWIS violation 187 (code 02) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · MCL exceedance · Began Jan 1, 1987 · 39 years ago · Source ↗
MCL exceedance — HENNESSEY
high severityHealth-basedResolvedEPA SDWIS violation 186 (code 02) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · MCL exceedance · Began Sep 1, 1986 · 39 years ago · Source ↗
Monitoring violation — HENNESSEY
low severityResolvedEPA SDWIS violation 36080 (code 03) at HENNESSEY (PWSID OK2003704).
EPA SDWIS · Monitoring violation · Began Oct 31, 1979 · 46 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.