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Salem PWS

Published drinking-water records and contacts for Salem PWS. System MO4010721. Review sources and dates; not a real-time water assessment.

System ID
MO4010721
State or territory
MO
Published population served
4736
System type (source code)
CWS

Published records and dates

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
SubstancePublished resultReporting limitSample dateSampling location
11Cl-PF3OUdS< 0.005 µg/L0.005 µg/L2025-08-11SALEM PWS / TP10400
4:2 FTS< 0.003 µg/L0.003 µg/L2025-08-11SALEM PWS / TP10400
6:2 FTS< 0.005 µg/L0.005 µg/L2025-08-11SALEM PWS / TP14489
8:2 FTS< 0.005 µg/L0.005 µg/L2025-08-11SALEM PWS / TP14489
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2025-08-11SALEM PWS / TP10400
ADONA< 0.003 µg/L0.003 µg/L2025-08-11SALEM PWS / TP10401
HFPO-DA< 0.005 µg/L0.005 µg/L2025-08-11SALEM PWS / TP10401
NEtFOSAA< 0.005 µg/L0.005 µg/L2025-08-11SALEM PWS / TP10407
NFDHA< 0.02 µg/L0.02 µg/L2025-08-11SALEM PWS / TP10401
NMeFOSAA< 0.006 µg/L0.006 µg/L2025-08-11SALEM PWS / TP14489
PFBA< 0.005 µg/L0.005 µg/L2025-08-11SALEM PWS / TP14489
PFBS< 0.003 µg/L0.003 µg/L2025-08-11SALEM PWS / TP10400
PFDA< 0.003 µg/L0.003 µg/L2025-08-11SALEM PWS / TP10407
PFDoA< 0.003 µg/L0.003 µg/L2025-08-11SALEM PWS / TP10401
PFEESA< 0.003 µg/L0.003 µg/L2025-08-11SALEM PWS / TP10401
PFHpA< 0.003 µg/L0.003 µg/L2025-08-11SALEM PWS / TP10401
PFHpS< 0.003 µg/L0.003 µg/L2025-08-11SALEM PWS / TP10401
PFHxA< 0.003 µg/L0.003 µg/L2025-08-11SALEM PWS / TP10400
PFHxS< 0.003 µg/L0.003 µg/L2025-08-11SALEM PWS / TP10407
PFMBA< 0.003 µg/L0.003 µg/L2025-08-11SALEM PWS / TP10401
PFMPA< 0.004 µg/L0.004 µg/L2025-08-11SALEM PWS / TP14489
PFNA< 0.004 µg/L0.004 µg/L2025-08-11SALEM PWS / TP10407
PFOA< 0.004 µg/L0.004 µg/L2025-08-11SALEM PWS / TP10407
PFOS< 0.004 µg/L0.004 µg/L2025-08-11SALEM PWS / TP14489
PFPeA< 0.003 µg/L0.003 µg/L2025-08-11SALEM PWS / TP10407
PFPeS< 0.004 µg/L0.004 µg/L2025-08-11SALEM PWS / TP10407
PFTA< 0.008 µg/L0.008 µg/L2025-08-11SALEM PWS / TP10401
PFTrDA< 0.007 µg/L0.007 µg/L2025-08-11SALEM PWS / TP14489
PFUnA< 0.002 µg/L0.002 µg/L2025-08-11SALEM PWS / TP10401
lithium< 9 µg/L9 µg/L2025-08-11SALEM PWS / TP10401

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
SubstancePublished 90th percentileMonitoring periodSource quarter
Lead (PB90) 0.00176 mg/L2023-01-01 – 2025-12-312026Q3
Lead (PB90) 0.00101 mg/L2020-01-01 – 2022-12-312026Q3
Lead (PB90) 0.00101 mg/L2020-01-01 – 2022-12-312026Q3
Lead (PB90) 0.00358 mg/L2017-01-01 – 2019-12-312026Q3
Lead (PB90) 0.00358 mg/L2017-01-01 – 2019-12-312026Q3
Lead (PB90) 0.00415 mg/L2014-01-01 – 2016-12-312026Q3
Lead (PB90) 0.00415 mg/L2014-01-01 – 2016-12-312026Q3
Lead (PB90) 0.00243 mg/L2011-01-01 – 2013-12-312026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
PERFLUOROBUTANE SULFONIC ACID (PFBS)< 3 NG/L2025-02-10WELL # 2 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUORONONANOIC ACID (PFNA)< 4 NG/L2025-02-10WELL # 4 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUOROHEPTANESULFONIC ACID (PFHPS)< 3 NG/L2025-02-10WELL # 8 CITY PARK / Missouri DNR PFAS samples — non-UCMR classes
PERFLUORODECANOIC ACID (PFDA)< 3 NG/L2025-02-10WELL # 4 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUOROTRIDECANOIC ACID (PFTRDA)< 7 NG/L2025-02-10WELL # 4 / Missouri DNR PFAS samples — non-UCMR classes
HFPO-DA< 5 NG/L2025-02-10WELL # 8 CITY PARK / Missouri DNR PFAS samples — non-UCMR classes
PERFLUOROBUTANOIC ACID (PFBA)< 5 NG/L2025-02-10WELL # 6 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUORO PFEESA< 3 NG/L2025-02-10WELL # 6 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUOROHEPTANESULFONIC ACID (PFHPS)< 3 NG/L2025-02-10WELL # 6 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUOROHEXANE SULFONIC ACID 4:2 FTS< 3 NG/L2025-02-10WELL # 4 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUOROHEXANE SULFONIC ACID 4:2 FTS< 3 NG/L2025-02-10WELL # 2 / Missouri DNR PFAS samples — non-UCMR classes
PERFLUOROCTANE SULFONIC ACID (PFOS)< 4 NG/L2025-02-10WELL # 8 CITY PARK / 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 / recordPeriodRecorded statusHealth-based (EPA classification)Source quarter
Lead and Copper Rule Revisions / Notification, Known or Potential LSL2025-07-02 – —ResolvedNo2026Q3
Total Coliform Rule / Maximum Contaminant Level Violation, Monthly (TCR)1991-07-01 – 1991-07-31ArchivedYes2026Q3

Source dates and refresh checks

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

Administrative contact (EPA filing)

Parker, Greg: 573-247-1207

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