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Tap water quality report

Marlow Municipal Authority

EPA monitoring tested this supplier for 87 contaminants and detected 24. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

87
contaminants tested
24
detected
4,600
people served
4
health-based violations
Oklahoma rankingsLead in OklahomaPFAS in Oklahoma
Water source
Ground water
Ownership
Local government
Counties served
Stephens

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

4
health-based violations
21
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
MCL Health-based Resolved 1998-11-01 → 1998-11-30
MCL Health-based Resolved 1993-07-01 → 1993-07-31
RPT Monitoring Resolved 2024-10-17
RPT Monitoring Resolved 2024-10-17
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
225 µg/L 17%
of the EPA limit 1300 µg/L
 59/60 SYR4 2012–2018
Nitrate-Nitrite
2040 µg/L 20%
of the EPA limit 10000 µg/L
 32/32 SYR4 2012–2019
Lead
3.24 µg/L 22%
of the EPA limit 15 µg/L
 18/60 SYR4 2012–2018
Lead
0.0022 mg/L 15%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2024
Dibromochloromethane
17.7 µg/L
No EPA limit set
 9/10 SYR4 2012–2019
Bromodichloromethane
14.9 µg/L
No EPA limit set
 7/10 SYR4 2012–2019
Chloroform
6.27 µg/L
No EPA limit set
 7/10 SYR4 2012–2019
TTHM
45.5 µg/L 57%
of the EPA limit 80 µg/L
 7/8 SYR4 2012–2019
Barium
162 µg/L 8.1%
of the EPA limit 2000 µg/L
 6/6 SYR4 2012–2018
Bromoform
6.62 µg/L
No EPA limit set
 6/10 SYR4 2012–2019
Fluoride
460 µg/L 12%
of the EPA limit 4000 µg/L
 6/6 SYR4 2012–2018
Arsenic
2.7 µg/L 27%
of the EPA limit 10 µg/L
 5/8 SYR4 2012–2018
Combined Uranium
4.18 µg/L 14%
of the EPA limit 30 µg/L
 5/5 SYR4 2012–2018
Gross Alpha, Excl. Radon And U
11.1 pCi/L 74%
of the EPA limit 15 pCi/L
 5/5 SYR4 2012–2018
Lithium
50.1 µg/L
No EPA limit set
 4/4 UCMR-5 2023
Chromium
3 µg/L 3%
of the EPA limit 100 µg/L
 3/6 SYR4 2012–2018
Combined Radium (-226 And -228)
1.18 pCi/L 24%
of the EPA limit 5 pCi/L
 3/5 SYR4 2012–2018
Dichloroacetic Acid
3.3 µg/L
No EPA limit set
 3/8 SYR4 2012–2019
Gross Beta Particle Activity
5.53 pCi/L
No EPA limit set
 3/5 SYR4 2012–2018
Selenium
1.13 µg/L 2.3%
of the EPA limit 50 µg/L
 3/6 SYR4 2012–2018
Total Haloacetic Acids (HAA5)
8.7 µg/L 14%
of the EPA limit 60 µg/L
 3/8 SYR4 2012–2019
Dibromoacetic Acid
4.3 µg/L
No EPA limit set
 2/8 SYR4 2012–2019
Monochloroacetic Acid
1.39 µg/L
No EPA limit set
 1/8 SYR4 2012–2019
Trichloroacetic Acid
1.04 µg/L
No EPA limit set
 1/8 SYR4 2012–2019
63 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbon TetrachlorideDichloromethaneDiquatEthylene DibromideEthylbenzeneGlyphosateHfpo-DaMercuryMonobromoacetic AcidNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPicloramStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MARLOW PWA
Phone
580-658-5401
Email
jmcpherson@cityofmarlow.com

Frequently asked questions about Marlow Municipal Authority

Is Marlow Municipal Authority tap water safe to drink?

EPA monitoring detected 24 contaminants in Marlow Municipal Authority's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Marlow Municipal Authority's water?

EPA monitoring detected Copper, Nitrate-Nitrite, Lead, Lead, Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does Marlow Municipal Authority serve?

Marlow Municipal Authority reports serving 4,600 people in Oklahoma, per its EPA record.

Has Marlow Municipal Authority had any water quality violations?

The EPA has 21 violations on file for Marlow Municipal Authority, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.