Skip to content

Water Treatment Options

Restaurant · 20 people · ZIP 90210 · pfas

PFAS contamination is a legitimate concern for restaurants relying on municipal water in the Los Angeles area. While LA DWP generally meets federal standards, PFAS compounds (PFOA/PFOS) are increasingly regulated, and a restaurant serving both employees and customers should prioritize point-of-use treatment that targets these specific contaminants.

Treatment Categories

Reverse Osmosis

High Relevance

Restaurants with confirmed or suspected PFAS in their water supply where both drinking and cooking water must meet the highest standard

Advantages

  • Most effective commercially proven technology for PFAS removal — EPA studies show 90%+ reduction of PFOA and PFOS
  • Also removes a broad spectrum of other contaminants including lead, arsenic, nitrates, and dissolved solids
  • Improves taste and clarity of water used in food preparation and beverages

Limitations

  • Produces wastewater (typically 2:1 to 4:1 reject ratio), which increases water usage
  • Requires regular membrane replacement and pre-filtration maintenance
  • Higher upfront and ongoing costs relative to carbon-only systems
  • Slower flow rate — may require a storage tank to meet peak restaurant demand

Activated Carbon Filtration (Granular or Block)

High Relevance

Restaurants wanting solid PFAS reduction at lower complexity, especially when paired with regular filter change schedules

Advantages

  • Granular activated carbon (GAC) is EPA-recognized as effective for reducing certain PFAS compounds, particularly longer-chain varieties like PFOA and PFOS
  • Lower water waste than reverse osmosis — no reject stream
  • Effective at removing chlorine, chloramine, and volatile organic compounds common in municipal water
  • Relatively simple installation and maintenance

Limitations

  • Less effective against shorter-chain PFAS compounds (PFBS, GenX) compared to RO
  • Filter media must be replaced on schedule — PFAS breakthrough can occur if carbon is exhausted
  • Performance varies significantly by carbon quality, contact time, and flow rate
  • Does not remove dissolved minerals, salts, or inorganic contaminants

Bottleless Cooler System (Point-of-Use with Built-in Filtration)

Moderate

Supplemental employee drinking water solution — best paired with a dedicated kitchen treatment system for food-contact water

Advantages

  • Provides filtered drinking water for staff without managing bottle deliveries or storage
  • Many units incorporate multi-stage filtration (carbon + sediment) that can reduce some PFAS
  • Convenient hot/cold dispensing suitable for a 20-person staff
  • Eliminates plastic jug waste and delivery logistics

Limitations

  • Filtration effectiveness for PFAS varies widely by unit — not all include RO or NSF-certified PFAS media
  • Addresses drinking water only — does not treat water used in cooking, dishwashing, or ice machines
  • Filter specifications must be verified to ensure PFAS-specific removal is actually rated

UV Purification

Lower Relevance

Facilities with microbial concerns or those using well water — not directly relevant to PFAS removal but valuable as part of a layered treatment approach

Advantages

  • Highly effective at neutralizing bacteria, viruses, and protozoa without chemicals
  • No water waste and minimal maintenance beyond lamp replacement
  • Useful as a final-stage disinfection step in a multi-barrier system

Limitations

  • Does NOT remove PFAS — UV treats biological contaminants only
  • Does not improve taste, remove chemicals, or reduce dissolved solids
  • Not a standalone solution for this facility's stated concern

Local Water Data

Local water quality data was not available for your area. This recommendation is based on your facility type, water source, and stated concerns.

Guidance based on EPA PFAS treatment technology assessments, California State Water Resources Control Board notification levels, and NSF/ANSI standards for drinking water treatment units. Facility-specific water testing is recommended to confirm contaminant levels before finalizing treatment selection.

This recommendation is provided by WaterAdvantage.org. The site author is employed by Bottleless Nation, a commercial water filtration company. This tool provides category-level guidance, not brand-specific recommendations. Learn more on our About page.