Pentair PFAS Forever Chemicals Filter

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Difference Between Area Data and Individual Household Water Quality

Government monitoring provides measurements of PFAS concentrations in Bakersfield's public surface water system but does not specify water quality in any single home or well. This data shows where per- and polyfluoroalkyl substances, commonly called PFAS or 'forever chemicals,' have been detected at or above reporting limits in the system. However, only a certified laboratory test of water samples drawn directly from your residence can establish the exact PFAS levels present there. Area data is a guide, not a definitive test for your household.

UCMR5 Survey Differences From Earlier Monitoring

Expanded List of PFAS Compounds

The 2023-2025 EPA UCMR5 survey includes compounds not measured previously, such as HFPO-DA and PFBS, providing a broader view of fluorinated chemicals in Bakersfield's water.

Lower Detection Levels

This survey used more sensitive reporting levels ranging from 0.003 to 0.005 micrograms per liter, enabling detection of very low PFAS concentrations that earlier methods might have missed.

Surface Water Source Focus

Bakersfield's system is supplied by surface water, so monitoring reflects these sources. Groundwater or private wells are not covered by this data.

Changes in Treated Water After Using the Pentair PFAS Forever Chemicals Filter

Reduction of Multiple PFAS Compounds

The documented Pentair System is designed to reduce concentrations of compounds such as PFOS, PFOA, PFHxS, and PFNA, which are part of the UCMR5 monitoring list.

Improved Water Taste and Appearance

By reducing 'forever chemicals,' this equipment can also help mitigate any aesthetic concerns linked to PFAS presence.

Ships Ready to Configure

The system arrives ready for connection to your household water line, requiring no special professional services for setup.

Federal MCLs Established for Some PFAS Compounds

PFOS and PFOA Regulatory Limits

As of 2024, the federal Maximum Contaminant Levels (MCLs) stand at 4.0 nanograms per liter (ng/L) or parts per trillion (ppt) for both PFOS and PFOA.

Other Detected Compounds Without Established MCLs

Compounds like PFHxS and PFNA have non-health-based MCLs at 10 ng/L but detections in Bakersfield are below these levels.

Compounds Without MCLs or Detections

Some fluorinated substances monitored, including HFPO-DA, PFBS, PFHxA, PFPeA, PFBA, and PFHpA, either were not detected or lack federal MCLs.

Interpreting Certified Laboratory Reports for PFAS

Reporting Levels and Detection

Laboratory results will list concentrations in micrograms per liter or nanograms per liter. Values near or below detection limits indicate very low or no measurable PFAS.

Comparing to Federal Standards

Measured values should be compared to MCLs for PFOS and PFOA to assess regulatory compliance; concentrations below these are not violations.

Understanding Measurement Variability

Laboratory results can vary due to sampling, timing, and method sensitivity; a single test represents a moment in time, not permanent water quality.

Assessing Treatment Capacity for Your Household Needs

Average Daily Water Use Considerations

When selecting treatment equipment, consider your household’s daily water consumption to ensure the system’s filter capacity aligns with usage.

Filter Longevity and Replacement

Filters reduce PFAS effectively but have finite life spans that depend on water quality and volume treated.

Maintaining System Performance

Regular monitoring of treated water quality helps determine when filter replacement is necessary to maintain PFAS reduction.

Understanding What Measurements Mean Versus What They Do Not

Detections Indicate Presence, Not Safety Risks

Detecting PFAS compounds means instruments found measurable amounts, but this is not a statement of health risk or violation.

Range of Concentrations Observed

PFOS was detected up to 0.0084 micrograms per liter, below the 4.0 ng/L federal limit, with most detections lower than this.

Sampling Represents System-Wide Averages

Values reported are from the city system serving over 160,000 people and 51,259 connections, not a single household.

These notes summarize the federal UCMR5 monitoring results for the Bakersfield, City of, California public water system serving Kern County. For official data and updates, see the EPA’s SDWIS public water system record.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2026-05-12. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR5 monitoring (2023-2025) for BAKERSFIELD, CITY OF (CA1510031), CA: 870 results across 10 listed contaminants, 9 detections above the reporting level; 5 results above a 2024 federal MCL