Prince William County Service Authority (West)

Public water system · Virginia · serves 136,409 people · source: Lake Manassas + Occoquan Reservoir · PWS ID VA6153251

High Risk

9 contaminants above health guidelines

At 402× the EWG health guideline, one glass of this tap water carries what 402 glasses should.

What’s in the water

× = times the EWG health guideline

Haloacetic acids (HAA9)Cancer-linked

×402

Total trihalomethanes (TTHMs)Cancer-linked

×179

Haloacetic acids (HAA5)Cancer-linked

×160

BromodichloromethaneCancer-linked

×95

Trichloroacetic acidCancer-linked

×66

Also above the guideline (4 more): Chloroform ×47 · Dichloroacetic acid ×44 · Dibromochloromethane ×23 · Chromium (hexavalent) ×3.6

What actually fixes it

pick by what’s flagged above

Carbon / pitcher filter

Cuts chlorine taste & some byproducts. A good first step, misses nitrate, chromium-6 & PFAS.

Reverse Osmosis (RO)

Under-sink drinking-water system, removes the widest range: byproducts, nitrate, chromium-6 & PFAS.

Complete system

Softener and carbon for every tap, plus Reverse Osmosis (RO) at the kitchen for what whole-home can’t catch.

$99 · normally $199

Next, start with your water heater

Hard water leaves sediment in a tank water heater and scale in a tankless. A $99 flush clears it, plumbing safety check included. Tankless descaling $300, regularly $350.

Book at myfreewaterreport.com or call (571) 396-0299

Scan to book

Report prepared by SwiftPro Heating, Cooling & Plumbing · VA Class A Contractor License #2705192276 · Fully insured · 4230 Lafayette Center Dr, Suite N, Chantilly, VA 20151 · (571) 396-0299 · [email protected]
Water data via the EWG Tap Water Database (June 2026); this report is not affiliated with EWG. Levels are the latest reported system-wide averages and vary by home and season. Full detail at https://myfreewaterreport.com/water/pwcsa-west. SwiftPro builds and pays for this site. The reports are free whether or not you ever hire us.