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Water quality report

JEFFERSON CO CONS RWD #1

HASTINGS, OK · 8,398 people served · EPA PWSID OK3003401

The bottom line

JEFFERSON CO CONS RWD #1 (HASTINGS, OK), which serves about 8,398 people, has recorded 2 health-based drinking-water contaminants in EPA violation records since 2016, most notably Total Trihalomethanes (TTHM), Uranium/Gross Alpha (radioactivity). Its most recent lead 90th-percentile sample was 0.0 ppb, within the 15 ppb federal action level. EPA's UCMR5 program detected PFAS 'forever chemicals' in this system: PFBA (0.0111 µg/L). A certified water filter can reduce these at the tap — see the certified options for each below.

3
health contaminants on record
1
PFAS detected (UCMR5)
14
total violations on record since 2016 (incl. monitoring & reporting)

What the testing found

Measured levels from EPA violation records, compared to the federal limit (MCL). The black line marks the legal limit.

Total Trihalomethanes

1.9× the federal limit
Measured 0.15 mg/L · federal limit 0.08 mg/L · latest 10/01/2016 · 12 violations since 2016

Chlorination byproduct; MCL 80 ug/L. Long-term bladder cancer and reproductive risk. Higher in surface-water systems.

291 filters certified to remove this → Best under-sinkBest reverse osmosisBest pitcher

Uranium/Gross Alpha

Over limit
Measured 16 pCi/L · federal limit 15 pCi/L · latest 10/01/2016 · 2 violations since 2016

Gross alpha MCL 15 pCi/L (excludes radon and uranium). Cancer risk. Naturally occurring in groundwater.

Lead

Not detected
Measured 0 ppb · federal limit 15 ppb · latest 12/31/2024 · 0 violations since 2016

No safe level. Damages developing brain/nervous system in children; linked to lower IQ, kidney and cardiovascular harm in adults. Usually enters water from corroding pipes/solder, not the source.

980 filters certified to remove this → Best under-sinkBest reverse osmosisBest pitcher

PFAS "forever chemicals"

Detected by EPA's UCMR5 monitoring. The 2024 federal limit for PFOA and PFOS is 4 ppt (0.004 µg/L).

PFBA

Detected
Measured 0.0111 µg/L · sampled 3/5/2024 · detection limit 0.005 µg/L
See PFAS-certified filters → Best reverse osmosis
Your recommended fix

Filters certified to clean up your water

Your water shows Total Trihalomethanes, PFOA, PFOS, PFAS. An under-sink filter handles the most of this in one unit — these three are independently certified for the most of your contaminants (not marketing claims):

Best match for your water
Multipure Aquaperform
Multipure
Aquaperform
Covers 4 of your 4 filterable contaminants
UNDER-SINK NSF certified
$765
Check price →
Whirlpool EDR3RXD1B
Whirlpool
EDR3RXD1B
Covers 4 of your 4 filterable contaminants
REFRIGERATOR NSF certified
$49.99
Check price →
Whirlpool EDR3RXD1R
Whirlpool
EDR3RXD1R
Covers 4 of your 4 filterable contaminants
REFRIGERATOR NSF certified
$49.99
Check price →

Amazon prices as of October 20, 2026 at 2:01 PM ET. Prices can change; the price on Amazon is the one that counts. As an Amazon Associate we earn from qualifying purchases; some links are affiliate links and we may earn a commission at no extra cost to you. Disclosure.

Note: gross-alpha radioactivity is best handled by reverse osmosis certified for radionuclides.

Compare all certified under-sink filters →

Want certainty about your tap specifically (not just the system)? A certified mail-in lab test is the gold standard — system-wide records can differ from your home's plumbing. Some links above are affiliate links — see our disclosure.

Sources & method. Contaminant levels and violations come from EPA's Safe Drinking Water Information System (health-based violations, 2016–present); PFAS from EPA UCMR5 monitoring (2023–2025). Levels shown are the highest recorded value in the violation records; a violation means the contaminant exceeded its federal limit at the system level. Your home's water can differ from the system average. Public domain data; we are not affiliated with the EPA.