England

PFAS in Warrington Water

Based on Environment Agency monitoring data. Last updated 6 August 2026.

According to TapWater.uk's analysis, 26 PFAS compounds have been detected across 20 sampling points in Warrington. The highest recorded level is 0.250 µg/L (PFBS).

Compounds detected

Sampling points

Highest level

0.250 µg/L

Latest date

6 August 2026

<0.01 µg/L

0.01–0.075 µg/L

>0.075 µg/L

PFAS levels over time

Monthly aggregate PFAS levels. Dashed line shows WHO guideline (0.1 µg/L).

Compounds detected

PFBS

0.2500 µg/L

PFOS (linear)

0.0980 µg/L

PFHxA

0.0570 µg/L

PFPeA

0.0450 µg/L

6:2 FTSA

0.0330 µg/L

PFHpA

0.0300 µg/L

PFOS (total)

0.0300 µg/L

6:2 FtSAB

0.0280 µg/L

PFOA

0.0250 µg/L

PFOS

0.0130 µg/L

PFBA

0.0120 µg/L

PFOS (branched)

0.0110 µg/L

FBSA

0.0100 µg/L

PFHxSA

0.0068 µg/L

6:6 PFPi

0.0063 µg/L

PFHxS (linear)

0.0054 µg/L

PFMOBA

0.0029 µg/L

5:3 FTCA

0.0020 µg/L

PFMOPrA

0.0020 µg/L

NNOx-6:2FOSA

0.0018 µg/L

PFDS

0.0017 µg/L

PFHxS (branched)

0.0012 µg/L

4:2 FTSA

0.0011 µg/L

PFNA

0.0011 µg/L

PFPeS

0.0010 µg/L

PFHpS

0.0006 µg/L

Dashed line = WHO guideline (0.1 µg/L). Bar shows maximum detected level.

Sampling points

Environment Agency monitoring locations near Warrington.

LocationMax levelCompoundCoordinates

RSN0104 COCKSHOT BROOK DOWNSTREAM POULTON PARK GOLF CLUB

0.013 µg/LPFOS53.4224, -2.5585

PENNINGTON BROOK AT BLACK HARRY FOOTBRIDGE

0.015 µg/LPFOA53.4832, -2.5165

RIVER MERSEY ABOVE HOWLEY WEIR

0.033 µg/L6:2 FTSA53.3874, -2.5789

RIVER WEAVER AT FRODSHAM ROAD BRIDGE

0.025 µg/L6:2 FTSA53.3011, -2.7064

MERE MERE (SAMPLE FROM WATERS EDGE)

0.007 µg/LPFOS53.3298, -2.4015

SOLVAY INTEROX BOREHOLE NO 1 WRB NO SJ58/71 APPN NO 1391

0.098 µg/LPFOS (linear)53.3697, -2.6035

LYMM GOLF CLUB ABS. BOREHOLE SJ68/88A

0.006 µg/L6:2 FTSA53.3869, -2.4848

BURTONWOOD BREWERY BH.1

0.006 µg/L6:2 FTSA53.4367, -2.6701

ROSTHERNE MERE - BANKSIDE SAMPLE @ SJ7423983875 BETWEEN BOATHOUSE & POND

0.015 µg/L6:2 FTSA53.3511, -2.3885

MANCHESTER SHIP CANAL U/S LANSTAR

0.019 µg/L6:2 FTSA53.4186, -2.4453

RIVER MERSEY AT WOOLSTON WEIR AT SLUICES

0.016 µg/L6:2 FTSA53.3940, -2.5217

RSN1812 NEAR HOVER FORCE ACTIVITY CENTRE, HARE'S LANE - CENTRAL NEW CUT DRAIN

0.250 µg/LPFBS53.2930, -2.7529

LEIGH SPINNERS

0.008 µg/L6:2 FTSA53.4932, -2.4931

RSN0424 D/S B5391-WATERLESS BROOK

0.006 µg/L6:2 FTSA53.3033, -2.4388

RSN1324 KECKWICK BROOK NEAR MURDISHAW VALLEY

0.002 µg/LPFOA53.3233, -2.6542

SSN0938 CINNAMON BROOK NEAR POULTON PARK GOLF CLUB

0.005 µg/LPFBA53.4233, -2.5660

SSN0234 CROWTON BROOK NEAR RODDY LANE

0.001 µg/LPFOA53.2636, -2.6495

SSN0058 REED BROOK DS OCHRE FLASH

0.037 µg/LPFBS53.5220, -2.6327

SOLVAY INTEROX BOREHOLE NO 2

0.036 µg/LPFPeA53.3682, -2.6112

HAYDOCK PARK RACE COURSE ABH. SJ59/181

0.030 µg/LPFOS (total)53.4771, -2.6302

What this means for your tap water

Important context: the Environment Agency data shown here is from environmental monitoring of rivers and groundwater — not treated tap water. PFAS detected in source water does not necessarily mean the same levels are present in the water that comes out of your tap.

Water treatment processes can reduce PFAS concentrations, though the effectiveness varies by treatment method and PFAS compound. UK water companies are not required to publish PFAS removal rates. If you are concerned, a reverse osmosis filter offers the most reliable protection at home.

How to reduce PFAS exposure

A reverse osmosis system is the most effective way to remove PFAS from your drinking water at home, eliminating over 95% of forever chemicals.

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PFAS data for nearby cities

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Frequently asked questions

Has PFAS been found in Warrington water?

Yes. Environment Agency monitoring has detected 26 PFAS compounds across 20 sampling points in water sources near Warrington. The highest recorded level is 0.250 µg/L (PFBS). Note that this is environmental monitoring of rivers and groundwater, not treated tap water.

What PFAS compounds were found in Warrington?

The following PFAS compounds have been detected near Warrington: PFOS, PFOA, 6:2 FTSA, PFOS (branched), PFHxS (linear), PFPeA, PFBS, PFHxA, PFOS (linear), PFHpA, PFBA, FBSA, PFHxS (branched), 4:2 FTSA, 5:3 FTCA, PFHxSA, PFHpS, PFNA, PFMOBA, PFOS (total), 6:2 FtSAB, PFDS, 6:6 PFPi, NNOx-6:2FOSA, PFPeS, PFMOPrA. PFBS was recorded at the highest level of 0.250 µg/L.

Is Warrington tap water safe to drink despite PFAS?

Warrington tap water meets all current UK legal standards. However, the UK has no legal limit for PFAS in drinking water. The Environment Agency data shows PFAS in source water (rivers and groundwater), not in treated tap water. Water treatment may reduce PFAS levels, but the extent of removal is not publicly reported.

How can I remove PFAS from my water in Warrington?

The most effective method is a reverse osmosis (RO) filtration system, which removes over 95% of PFAS compounds. Standard carbon filters and jug filters like BRITA do not effectively remove PFAS. An under-sink RO system is recommended for Warrington households concerned about PFAS exposure.