Oak Grove PWS

Published drinking-water records and contacts for Oak Grove PWS. System MO1010589. Review sources and dates; not a real-time water assessment.

System ID: MO1010589
State or territory: MO
Published population served: 8289
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 60 — 2024-04-08 – 2024-10-07
Lead and copper monitoring summaries: 24 — 1992-07-01 – 2024-12-31
Missouri DNR PFAS samples — non-UCMR classes: 58 — 2024-04-08 – 2024-10-07

Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.

Published testing results

Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.

“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example

EPA UCMR 5 — most recent imported sample per substance
Substance	Published result	Reporting limit	Sample date	Sampling location
11Cl-PF3OUdS	< 0.005 µg/L	0.005 µg/L	2024-10-07	OAK GROVE PWS / CC80194
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2024-10-07	OAK GROVE PWS / CC80194
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-10-07	OAK GROVE PWS / CC80194
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-10-07	OAK GROVE PWS / CC80194
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2024-10-07	OAK GROVE PWS / CC80194
ADONA	< 0.003 µg/L	0.003 µg/L	2024-10-07	OAK GROVE PWS / CC80194
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2024-10-07	OAK GROVE PWS / CC80194
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2024-10-07	OAK GROVE PWS / CC80194
NFDHA	< 0.02 µg/L	0.02 µg/L	2024-10-07	OAK GROVE PWS / CC80194
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFBA	< 0.005 µg/L	0.005 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFBS	< 0.003 µg/L	0.003 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFDA	< 0.003 µg/L	0.003 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFDoA	< 0.003 µg/L	0.003 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFEESA	< 0.003 µg/L	0.003 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFHpA	< 0.003 µg/L	0.003 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFHpS	< 0.003 µg/L	0.003 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFHxA	< 0.003 µg/L	0.003 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFHxS	< 0.003 µg/L	0.003 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFMBA	< 0.003 µg/L	0.003 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFMPA	< 0.004 µg/L	0.004 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFNA	< 0.004 µg/L	0.004 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFOA	< 0.004 µg/L	0.004 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFOS	< 0.004 µg/L	0.004 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFPeA	< 0.003 µg/L	0.003 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFPeS	< 0.004 µg/L	0.004 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFTA	< 0.008 µg/L	0.008 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFTrDA	< 0.007 µg/L	0.007 µg/L	2024-10-07	OAK GROVE PWS / CC80194
PFUnA	< 0.002 µg/L	0.002 µg/L	2024-10-07	OAK GROVE PWS / CC80194
lithium	40 µg/L	9 µg/L	2024-10-07	OAK GROVE PWS / CC80194

Download all EPA UCMR 5 records (CSV)

Lead and copper: 90th-percentile summaries

These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile

Eight most recent imported monitoring summaries
Substance	Monitoring period	Source quarter
Lead (PB90)	2022-01-01 – 2024-12-31	2026Q3
Lead (PB90)	2020-01-01 – 2022-12-31	2026Q3
Lead (PB90)	2019-01-01 – 2021-12-31	2026Q3
Lead (PB90)	2019-01-01 – 2021-12-31	2026Q3
Lead (PB90)	2017-01-01 – 2019-12-31	2026Q3
Lead (PB90)	2016-01-01 – 2018-12-31	2026Q3
Lead (PB90)	2016-01-01 – 2018-12-31	2026Q3
Lead (PB90)	2014-01-01 – 2016-12-31	2026Q3

Twelve most recent imported state laboratory records
Substance	Published result	Sample date	Location / source
PERFLUORODECANE SULFONIC ACID 8:2 FTS	< 5 NG/L	2024-10-07	CC 1 INDEPENDENCE MO1010399 / Missouri DNR PFAS samples — non-UCMR classes
NETFOSAA	< 5 NG/L	2024-10-07	CC 1 INDEPENDENCE MO1010399 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUOROOCTANE SULFONIC ACID 6:2 FTS	< 5 NG/L	2024-10-07	CC 1 INDEPENDENCE MO1010399 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUOROBUTANE SULFONIC ACID (PFBS)	< 3 NG/L	2024-10-07	CC 1 INDEPENDENCE MO1010399 / Missouri DNR PFAS samples — non-UCMR classes
NONAFLUORO NFDHA	< 20 NG/L	2024-10-07	CC 1 INDEPENDENCE MO1010399 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUOROHEXANOIC ACID (PFHXA)	< 3 NG/L	2024-10-07	CC 1 INDEPENDENCE MO1010399 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUORO PFMBA	< 3 NG/L	2024-10-07	CC 1 INDEPENDENCE MO1010399 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUOROTRIDECANOIC ACID (PFTRDA)	< 7 NG/L	2024-10-07	CC 1 INDEPENDENCE MO1010399 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUOROHEXANE SULFONIC ACID (PFHxS)	< 3 NG/L	2024-10-07	CC 1 INDEPENDENCE MO1010399 / Missouri DNR PFAS samples — non-UCMR classes
NMEFOSAA	< 6 NG/L	2024-10-07	CC 1 INDEPENDENCE MO1010399 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUOROCTANOIC ACID (PFOA)	< 4 NG/L	2024-10-07	CC 1 INDEPENDENCE MO1010399 / Missouri DNR PFAS samples — non-UCMR classes
9CL-PF3ONS	< 2 NG/L	2024-10-07	CC 1 INDEPENDENCE MO1010399 / Missouri DNR PFAS samples — non-UCMR classes

State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.

Download state records with source notes (CSV)

Published compliance history

2 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.

Twenty most recent imported compliance records
Rule / record	Period	Recorded status	Health-based (EPA classification)	Source quarter
Lead and Copper Rule Revisions / Notification, Known or Potential LSL	2025-07-02 – —	Unaddressed	No	2026Q3
Total Coliform Rule / Monitoring, Repeat Minor (TCR)	1998-01-01 – 1998-01-31	Archived	No	2026Q3

Source dates and refresh checks

A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.

EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
Missouri DNR PFAS samples — non-UCMR classes — last successful check: 2026-10-15

Administrative contact (EPA filing)

Alford, Corey: 816-690-3770

An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.

Official state resources · How to read these records