Prince William County Service Authority

Public water system · Virginia · serves 350,000 people · source: Lake Manassas + Occoquan Reservoir · PWS ID VA6153600

High Risk

9 contaminants above health guidelines

At 510× the EWG health guideline, one glass of this tap water carries what 510 glasses should.

What’s in the water

× = times the EWG health guideline

Haloacetic acids (HAA9)Cancer

×510

Total trihalomethanes (TTHMs)Cancer

×256

Haloacetic acids (HAA5)Cancer

×241

BromodichloromethaneCancer

×123

Trichloroacetic acidCancer

×108

Also above the guideline (4 more): Chloroform ×62 · Dichloroacetic acid ×61 · Chromium (hexavalent) ×23 · Nitrate and nitrite ×9

What actually fixes it

your free test confirms the right fit

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.

Whole-home + RO

Softener / carbon for every tap, plus RO at the kitchen for what whole-home can’t catch.

$0 · No obligation

See what’s really in your home’s water

Scan the code to schedule a free in-home water test with a licensed local technician — tap, pressure, hardness & a plain-English plan.

Or call (703) 997-9757

Scan to schedule

Report prepared by SwiftPro Heating, Cooling & Plumbing · VA Class A Contractor License #2705192276 · Fully insured · 4230 Lafayette Center Dr, Suite N, Chantilly, VA 20151 · (703) 997-9757 · [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 — an in-home test measures your actual tap. Full lab-style detail at https://myfreewaterreport.com/water/prince-william.