Napoleonville Tap Water Quality Report
Limited testing on file — only PFAS results from EPA's UCMR 5 for ASSUMPTION PARISH WW DISTRICT 1. No other contaminant results are on file for ASSUMPTION PARISH WW DISTRICT 1; check its latest Consumer Confidence Report for its current test results.
Water system
ASSUMPTION PARISH WW DISTRICT 1
People Served
21,366
Health-based violations since 2020
0
ASSUMPTION PARISH WW DISTRICT 1. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Is Napoleonville Tap Water Safe to Drink?
Only PFAS results from EPA's UCMR 5 are on file for Napoleonville's own water system, so everything else listed below has no result behind it. Testing your own water is the way to find out what your tap is actually delivering.
ASSUMPTION PARISH WW DISTRICT 1, Napoleonville's water system, serves 21,366 people. Water quality testing is conducted regularly and reported to the EPA.
In EPA's 2023–2026 UCMR 5 testing, ASSUMPTION PARISH WW DISTRICT 1 measured lithium at up to 15.7 µg/L, which EPA counts as above its health reference level of 10 µg/L. That level is a screening value EPA uses to decide what to study further, not a legal limit, and this result does not change this page's water-quality summary.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Louisiana
Napoleonville Water Service Areas
What these numbers actually mean for Napoleonville, LA
We read Napoleonville, LA’s published record and send you a short report — which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 23 contaminants listed, only PFAS results from EPA's UCMR 5 on file
- 23 PFAS compounds on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Get the Weekly Water Brief
One email a week on water testing, treatment, and what water-quality data means for your home.
Free forever. Unsubscribe anytime. We never share your email.
General-Purpose Water Filters for Napoleonville
Napoleonville's results show no result above EPA's health goals or legal limits, so these are general-purpose NSF/ANSI 53 certified filters, not chosen for any contaminant.
Pentair Residential Filtration, LLC
Everpure Residential H-300-NXT
NSF Certified:
Capacity
3001 gal
Filter Life
10 mo
Flow Rate
0.5 gpm
Removes 5 contaminants:
Whirlpool Corporation
W11256135
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.7 gpm
Removes 19 contaminants:
+14 more
Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Tetrachloroethylene, Toxaphene, Turbidity
Whirlpool Corporation
W11569861
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.52 gpm
Removes 22 contaminants:
+17 more
Atrazine, Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Styrene, Tetrachloroethylene, Toxaphene, Trichloroethylene, Turbidity
Santevia
Bath Filter
NSF Certified:
Flow Rate
0.36 gpm
Highlights:
- Organic cotton design reduces plastic used in construction
- Affordable upfront & ongoing cost
- The only bath filter that removed 100% chlorine with “normal” faster faucet flow
Removes 1 contaminants:
Test Your Water Quality
Professional laboratory testing provides accurate, detailed analysis of your drinking water.
SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
What Napoleonville's water readings can explain
Utility-reported data for Napoleonville includes a chlorine-based disinfectant — the readings behind these common tap water questions. We publish a city-level hardness figure for Napoleonville, resolved from its water systems where they report one and estimated from county sampling where they do not. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near Napoleonville? Public-water results do not apply to private wells. See Assumption Parish well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Napoleonville
Napoleonville's tap water has an estimated 5.6 grains per gallon (96.0 mg/L, county sampling in Assumption Parish) — moderately hard on the USGS scale, below the range where scale is usually worth treating.
Water softener cost for an estimated 5.6 gpg water in Napoleonville — equipment and local installation labour for your ZIP code, with the sizing arithmetic shown in full. For the national picture first, read what a water softener costs — equipment, installation labour and ten-year ownership, each separated out. For Louisiana as a whole, read water softener cost in Louisiana — priced against the plumber wage published for the state.
Frequently Asked Questions About Napoleonville Tap Water
Limited testing on file — only PFAS results from EPA's UCMR 5 for ASSUMPTION PARISH WW DISTRICT 1. No other contaminant results are on file for ASSUMPTION PARISH WW DISTRICT 1; check its latest Consumer Confidence Report for its current test results.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach ASSUMPTION PARISH WW DISTRICT 1. For a problem with your water now (discolored water, no water, low pressure, a leak), contact ASSUMPTION PARISH WW DISTRICT 1 directly.
Check another location
Get the Weekly Water Brief
One email a week on water testing, treatment, and what water-quality data means for your home.
One email a week. Unsubscribe anytime.