Water quality report

BIG PARK WATER COMPANY

SEDONA, AZ · 7,392 people served · EPA PWSID AZ0413012

The bottom line

BIG PARK WATER COMPANY (SEDONA, AZ), which serves about 7,392 people, has recorded 1 health-based drinking-water contaminant in EPA violation records since 2016, most notably Arsenic. 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: PFBS (0.028 µg/L), PFOA (0.021 µg/L), PFHxA (0.0046 µg/L). PFOA/PFOS levels exceed the 2024 federal limit of 4 ppt (0.004 µg/L). A certified water filter can reduce these at the tap — see the certified options for each below.

health contaminants on record

PFAS detected (UCMR5)

total health violations since 2016

What the testing found

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

Arsenic

1.5× the federal limit

Measured 0.015 mg/L · federal limit 0.01 mg/L · latest 04/01/2024 · 5 violations since 2016

Known human carcinogen (skin, bladder, lung); also cardiovascular and developmental effects. Mostly naturally occurring in groundwater.

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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.

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PFAS "forever chemicals"

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

PFBS

Detected

Measured 0.028 µg/L · sampled 1/30/2023 · detection limit 0.003 µg/L

PFOA

5.3× the 4 ppt limit

Measured 0.021 µg/L · sampled 1/30/2023 · detection limit 0.004 µg/L

PFHxA

Detected

Measured 0.0046 µg/L · sampled 8/14/2023 · detection limit 0.003 µg/L

PFPeA

Detected

Measured 0.0046 µg/L · sampled 8/14/2023 · detection limit 0.003 µg/L

PFOS

1.0× the 4 ppt limit

Measured 0.0041 µg/L · sampled 1/30/2023 · detection limit 0.004 µg/L

PFHpA

Detected

Measured 0.004 µg/L · sampled 1/30/2023 · detection limit 0.003 µg/L

PFHxS

Detected

Measured 0.0033 µg/L · sampled 1/30/2023 · detection limit 0.003 µg/L

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Your recommended fix

Filters certified to clean up your water

Your water shows Arsenic, 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

Covers 4 of your 4 filterable contaminants

UNDER-SINK NSF certified

$765

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ramco

P1WB2L

Covers 3 of your 4 filterable contaminants

REFRIGERATOR NSF certified

$27.79

13.9¢/gal

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EveryDrop by Whirlpool

EDR3RXD1B

Covers 3 of your 4 filterable contaminants

REFRIGERATOR NSF certified

$46.12

23.1¢/gal

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Your water also has Arsenic — only reverse osmosis reliably removes these dissolved contaminants. See the best RO systems →

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.