City of Horn Lake

Published drinking-water records and contacts for City of Horn Lake. System MS0170022. Review sources and dates; not a real-time water assessment.

System ID: MS0170022
State or territory: MS
Published population served: 13649
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 240 — 2024-04-08 – 2024-10-02
Lead and copper monitoring summaries: 13 — 1992-07-01 – 2024-12-31
Mississippi selected chemical sample panels: 3 — 2026-06-02 – 2026-06-02

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	2024-10-02	Meadowbrook & Mayfair St. TP / 31270
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2024-10-02	Meadowbrook & Mayfair St. TP / 31270
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-10-02	Hurt Rd. Treatment Plant / 31269
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-10-02	Hurt Rd. Treatment Plant / 31269
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2024-10-02	Meadowbrook & Mayfair St. TP / 31270
ADONA	< 0.003 µg/L	0.003 µg/L	2024-10-02	Pembrook St. Treatment Plant / 31271
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2024-10-02	Pembrook St. Treatment Plant / 31271
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2024-10-02	Pembrook St. Treatment Plant / 31271
NFDHA	< 0.02 µg/L	0.02 µg/L	2024-10-02	Hwy. 302 Treatment Plant / 39448
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2024-10-02	Meadowbrook & Mayfair St. TP / 31270
PFBA	< 0.005 µg/L	0.005 µg/L	2024-10-02	Meadowbrook & Mayfair St. TP / 31270
PFBS	< 0.003 µg/L	0.003 µg/L	2024-10-02	Hwy. 302 Treatment Plant / 39448
PFDA	< 0.003 µg/L	0.003 µg/L	2024-10-02	Hurt Rd. Treatment Plant / 31269
PFDoA	< 0.003 µg/L	0.003 µg/L	2024-10-02	Pembrook St. Treatment Plant / 31271
PFEESA	< 0.003 µg/L	0.003 µg/L	2024-10-02	Hwy. 302 Treatment Plant / 39448
PFHpA	< 0.003 µg/L	0.003 µg/L	2024-10-02	Meadowbrook & Mayfair St. TP / 31270
PFHpS	< 0.003 µg/L	0.003 µg/L	2024-10-02	Meadowbrook & Mayfair St. TP / 31270
PFHxA	< 0.003 µg/L	0.003 µg/L	2024-10-02	Hwy. 302 Treatment Plant / 39448
PFHxS	< 0.003 µg/L	0.003 µg/L	2024-10-02	Hwy. 302 Treatment Plant / 39448
PFMBA	< 0.003 µg/L	0.003 µg/L	2024-10-02	Hurt Rd. Treatment Plant / 31269
PFMPA	< 0.004 µg/L	0.004 µg/L	2024-10-02	Hwy. 302 Treatment Plant / 39448
PFNA	< 0.004 µg/L	0.004 µg/L	2024-10-02	Pembrook St. Treatment Plant / 31271
PFOA	< 0.004 µg/L	0.004 µg/L	2024-10-02	Meadowbrook & Mayfair St. TP / 31270
PFOS	< 0.004 µg/L	0.004 µg/L	2024-10-02	Hurt Rd. Treatment Plant / 31269
PFPeA	< 0.003 µg/L	0.003 µg/L	2024-10-02	Meadowbrook & Mayfair St. TP / 31270
PFPeS	< 0.004 µg/L	0.004 µg/L	2024-10-02	Meadowbrook & Mayfair St. TP / 31270
PFTA	< 0.008 µg/L	0.008 µg/L	2024-10-02	Pembrook St. Treatment Plant / 31271
PFTrDA	< 0.007 µg/L	0.007 µg/L	2024-10-02	Hurt Rd. Treatment Plant / 31269
PFUnA	< 0.002 µg/L	0.002 µg/L	2024-10-02	Meadowbrook & Mayfair St. TP / 31270
lithium	< 9 µg/L	9 µg/L	2024-10-02	Hurt Rd. Treatment Plant / 31269

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	Published 90th percentile	Monitoring period	Source quarter
Lead (PB90)	0.0012 mg/L	2022-01-01 – 2024-12-31	2026Q3
Lead (PB90)	0 mg/L	2019-01-01 – 2021-12-31	2026Q3
Lead (PB90)	0.0018 mg/L	2016-01-01 – 2018-12-31	2026Q3
Lead (PB90)	0.001 mg/L	2014-01-01 – 2016-12-31	2026Q3
Lead (PB90)	0.001 mg/L	2011-01-01 – 2013-12-31	2026Q3
Lead (PB90)	0.0005 mg/L	2008-01-01 – 2010-12-31	2026Q3
Lead (PB90)	0.0007 mg/L	2005-01-01 – 2007-12-31	2026Q3
Lead (PB90)	0.0016 mg/L	2002-01-01 – 2004-12-31	2026Q3

Twelve most recent imported state laboratory records
Substance	Published result	Sample date	Location / source
NITRATE-NITRITE	0.37 mg/L	2026-06-02	TF080 / Mississippi selected chemical sample panels
NITRATE	0.37 mg/L	2026-06-02	TF080 / Mississippi selected chemical sample panels
NITRITE	< .05 mg/L	2026-06-02	TF080 / Mississippi selected chemical sample panels

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
Total Coliform Rule / Maximum Contaminant Level Violation, Monthly (TCR)	2000-09-27 – 2000-10-27	Archived	Yes	2026Q3
Total Coliform Rule / Maximum Contaminant Level Violation, Monthly (TCR)	1993-11-01 – 1993-11-30	Archived	Yes	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
Mississippi selected chemical sample panels — last successful check: 2026-10-17

Administrative contact (EPA filing)

Stokes, 11, Jimmy: 662-393-6178

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