Longmont, CO · PFAS · forever chemicals

PFAS in Longmont tap water

PFAS was not detected in Longmont’s latest sampling. See the measured values, the EPA source, and what removes PFAS.

Supplier: LONGMONT CITY OFNot detectedScore 98/100

PFAS in Longmont tap water

PFAS was not detected in Longmont’s latest sampling.

Not detected

Not detected in the 2024 UCMR5 round.

Not detected in the 2024 UCMR5 round.

Not detected in the 2024 UCMR5 round.

Not detected in the 2024 UCMR5 round.

This page focuses on PFAS in Longmont; the full city report covers every measured contaminant.

Treatment capabilities that apply

  • Reverse osmosis
  • Activated carbon (GAC)
  • Anion exchange

No product is recommended for this Longmont finding: the published findings do not document a concern that a certified filter claim addresses.

Frequently asked questions

Sources

UCMR5 Analytical Results
UCMR5 Analytical Results: LONGMONT CITY OF (CO0107485)
US EPA · 2026-01-15
View source
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: LONGMONT CITY OF (CO0107485)
US EPA SDWIS · 2026-07-09
View source

More on Longmont water

START WITH THE WATER AT YOUR ADDRESS.