74604
Ponca City, OK
Kay County · Ponca City, OK metro area
KAY CO RWD #3

Is Ponca City tap water safe to drink?

Higher concern
Last tested: November 2024
Source: Official EPA UCMR5 federal monitoring data. Last tested November 2024.
Townships:
  • McCord-Braden CCD, OK
  • Ponca City CCD, OK
  • Kaw City CCD, OK
  • Newkirk CCD, OK
Neighborhood:
  • Ponca City

The short answer for Ponca City

Ponca City tap water has 4 contaminants above EPA guidelines, including lithium at 1.9× the limit (tested November 2024). See the full compound-by-compound breakdown and filter recommendations.

The health risk for Ponca City

lithium has been detected above EPA limits in this water system's recent tests. A certified filter designed for this contaminant type is strongly recommended.
  • lithium, PFBS, PFHxS, PFOS above limit.
lithium concentration (µg/L) November 2024
0 µg/L 10 µg/L 20 µg/L
19.100 µg/L
Detected
µg/L
10 µg/L
EPA limit
guideline
91% above limit
Comparison
vs. guideline
EPA limit: 10 µg/L | Your water: 19.100 µg/L
Certified Filters for Ponca City Tap Water

lithium was detected above EPA limits. These filters are independently certified to reduce common drinking-water contaminants.

Water filter recommendation for Ponca City tap water: Epic Pure XP Water Filter Pitcher
Pitcher filter
Epic Pure XP Water Filter Pitcher
NSF-certified dual-layer filtration reduces 70+ contaminants including PFAS, lead, chlorine, microplastics, and bacteria.
NSF/ANSI 42, 53, 401 & P473Removes 99.99% PFASMade in USABPA-free
Most elevated compounds
Compound Measurement EPA Limit Comparison
lithium
Tested: November 2024 · Water TP
19.100 µg/L 10 µg/L 91% above limit
PFOS
Tested: November 2024 · Water TP
0.007 µg/L 0.004 µg/L 78% above limit
PFBS
Tested: November 2024 · Water TP
0.004 µg/L 0.003 µg/L 27% above limit
PFHxS
Tested: November 2024 · Water TP
0.005 µg/L 0.004 µg/L 18% above limit
View all tested compounds

Water TP · Tested: November 2024

Compound Measurement EPA Limit Comparison
lithium 19.100 µg/L 10 µg/L 91% above limit
PFOS 0.007 µg/L 0.004 µg/L 78% above limit
PFBS 0.004 µg/L 0.003 µg/L 27% above limit
PFHxS 0.005 µg/L 0.004 µg/L 18% above limit
HFPO-DA <0.005 µg/L 0.01 µg/L Below limit
PFNA <0.004 µg/L 0.01 µg/L Below limit
PFHxA <0.003 µg/L 3 µg/L Below limit
PFBA <0.005 µg/L 6 µg/L Below limit
11Cl-PF3OUdS <0.005 µg/L 0.005 µg/L Below limit
4:2 FTS <0.003 µg/L 0.003 µg/L Below limit
6:2 FTS <0.005 µg/L 0.005 µg/L Below limit
8:2 FTS <0.005 µg/L 0.005 µg/L Below limit
9Cl-PF3ONS <0.002 µg/L 0.002 µg/L Below limit
ADONA <0.003 µg/L 0.003 µg/L Below limit
PFDA <0.003 µg/L 0.003 µg/L Below limit
PFDoA <0.003 µg/L 0.003 µg/L Below limit
PFHpA <0.003 µg/L 0.003 µg/L Below limit
PFHpS <0.003 µg/L 0.003 µg/L Below limit
PFOA <0.004 µg/L 0.004 µg/L Below limit
PFPeA <0.003 µg/L 0.003 µg/L Below limit
PFTrDA <0.007 µg/L 0.007 µg/L Below limit
PFUnA <0.002 µg/L 0.002 µg/L Below limit

Water utilities serving ZIP 74604

Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.

Modeled boundaries are shown with a dashed outline.

Frequently Asked Questions about ZIP 74604 Tap Water

What contaminants are above EPA limits in ZIP 74604?

ZIP 74604 has 4 contaminants above EPA health guidelines in the latest available data, including lithium at 1.9x the EPA guideline. The full table on this page lists every tested compound and its measured level.

Will boiling ZIP 74604 tap water remove lithium?

No. Boiling tap water does not remove lithium. Lithium is a dissolved mineral, so heat does not break it down and evaporation can actually concentrate it. Reverse osmosis (NSF/ANSI 58) is the most reliable at-home option for reducing lithium.

Do basic pitcher filters remove lithium?

Standard pitcher filters are not certified to reduce lithium. Reverse osmosis (NSF/ANSI 58) is the most widely available home option for reducing lithium in drinking water.

Who provides tap water in ZIP 74604?

Public records identify KAY CO RWD #3 as a primary water system associated with ZIP 74604. Service boundaries can vary by address, so confirm exact service with the utility.

When was ZIP 74604 tap water last tested?

The most recent test date used in this report is November 2024. EnviroClarity last refreshed this page on 2026-05-05.

Where can I find the official water quality report for ZIP 74604?

Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact KAY CO RWD #3 or visit their website for the latest official report covering ZIP 74604. The EPA also maintains a national CCR locator.

Primary source EPA UCMR5 (2023-2025)
Guideline source EPA drinking water standard (lithium: 10 µg/L)
Last tested November 2024
Last page update 2026-05-05

Check another ZIP code

    Data reflects publicly reported utility records from EPA datasets and local utility disclosures. This information is educational and not medical advice.

    Protect your water in Ponca City → see certified filters