City water profile

Water hardness in Dover

Find official utility reports, understand hardness, and check the water system serving your home in Dover, New Jersey.

Utility-reported hardness

Not yet available

Check your provider and source →

State comparison: Unavailable
Evidence comparison rank: —
Matched utilities: 1
Active health records: 0

Your tap water

What does the utility report?

Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.

Utility hardness unavailable in this index

Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.

Find an official utility report →

Convert a hardness result →Test your tap →

Match the name on your water bill

Your utility’s measurements and compliance records

These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.

EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.

Dover Water Commission

NJ1409001 · Groundwater · 27,806 people served system-wide

A municipal system, in-state city, and served county all agree with this Census ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.0028 mg/L
Action level: 0.015 mg/L

19% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (52)

Imported violation history for Dover Water Commission
Rule	Status	Period
Styrene	Archived	Jan 1, 2026 to Mar 31, 2026
Vinyl chloride	Archived	Jan 1, 2026 to Mar 31, 2026
trans-1,2-Dichloroethylene	Archived	Jan 1, 2026 to Mar 31, 2026
DICHLOROMETHANE	Archived	Jan 1, 2026 to Mar 31, 2026
1,2,4-Trichlorobenzene	Archived	Jan 1, 2026 to Mar 31, 2026
Ethylbenzene	Archived	Jan 1, 2026 to Mar 31, 2026
1,2-Dichloroethane	Archived	Jan 1, 2026 to Mar 31, 2026
trans-1,2-Dichloroethylene	Archived	Jan 1, 2026 to Mar 31, 2026
Styrene	Archived	Jan 1, 2026 to Mar 31, 2026
o-Dichlorobenzene	Archived	Jan 1, 2026 to Mar 31, 2026
1,1,2-Trichloroethane	Archived	Jan 1, 2026 to Mar 31, 2026
CHLOROBENZENE	Archived	Jan 1, 2026 to Mar 31, 2026
Benzene	Archived	Jan 1, 2026 to Mar 31, 2026
1,1,2-Trichloroethane	Archived	Jan 1, 2026 to Mar 31, 2026
1,1,1-Trichloroethane	Archived	Jan 1, 2026 to Mar 31, 2026
1,2-Dichloroethane	Archived	Jan 1, 2026 to Mar 31, 2026
Toluene	Archived	Jan 1, 2026 to Mar 31, 2026
cis-1,2-Dichloroethylene	Archived	Jan 1, 2026 to Mar 31, 2026
1,2,4-Trichlorobenzene	Archived	Jan 1, 2026 to Mar 31, 2026
DICHLOROMETHANE	Archived	Jan 1, 2026 to Mar 31, 2026
Carbon tetrachloride	Archived	Jan 1, 2026 to Mar 31, 2026
Xylenes, Total	Archived	Jan 1, 2026 to Mar 31, 2026
1,1,1-Trichloroethane	Archived	Jan 1, 2026 to Mar 31, 2026
1,2-Dichloropropane	Archived	Jan 1, 2026 to Mar 31, 2026
1,1-Dichloroethylene	Archived	Jan 1, 2026 to Mar 31, 2026
CHLOROBENZENE	Archived	Jan 1, 2026 to Mar 31, 2026
o-Dichlorobenzene	Archived	Jan 1, 2026 to Mar 31, 2026
Trichloroethylene	Archived	Jan 1, 2026 to Mar 31, 2026
Tetrachloroethylene	Archived	Jan 1, 2026 to Mar 31, 2026
Ethylbenzene	Archived	Jan 1, 2026 to Mar 31, 2026
Benzene	Archived	Jan 1, 2026 to Mar 31, 2026
Carbon tetrachloride	Archived	Jan 1, 2026 to Mar 31, 2026
Tetrachloroethylene	Archived	Jan 1, 2026 to Mar 31, 2026
Trichloroethylene	Archived	Jan 1, 2026 to Mar 31, 2026
p-Dichlorobenzene	Archived	Jan 1, 2026 to Mar 31, 2026
Toluene	Archived	Jan 1, 2026 to Mar 31, 2026
1,2-Dichloropropane	Archived	Jan 1, 2026 to Mar 31, 2026
Xylenes, Total	Archived	Jan 1, 2026 to Mar 31, 2026
Vinyl chloride	Archived	Jan 1, 2026 to Mar 31, 2026
cis-1,2-Dichloroethylene	Archived	Jan 1, 2026 to Mar 31, 2026
1,1-Dichloroethylene	Archived	Jan 1, 2026 to Mar 31, 2026
p-Dichlorobenzene	Archived	Jan 1, 2026 to Mar 31, 2026
Revised Total Coliform Rule	Unaddressed	Nov 11, 2025
Consumer Confidence Rule	Unaddressed	Oct 1, 2025
TTHM	Archived	Oct 1, 2025 to Dec 31, 2025
Total Haloacetic Acids (HAA5)	Archived	Oct 1, 2025 to Dec 31, 2025
Revised Total Coliform Rule	Archived	Oct 1, 2025 to Oct 31, 2025
Consumer Confidence Rule	Unaddressed	Jul 1, 2025
E. COLI	Resolved	Sep 25, 2024 to Dec 12, 2024
Revised Total Coliform Rule	Unaddressed	Sep 11, 2024
Revised Total Coliform Rule	Archived	Aug 1, 2024 to Aug 31, 2024
Gross Alpha, Excl. Radon and U	Archived	Jan 1, 2023 to Dec 31, 2025

City summary

What the indexed records say

Dover has 1 published ZIP profile across Morris County. The regional-evidence median is 267 PPM. The city does not meet the stricter comparison standard.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs

Moderately hard0 ZIPs

Hard0 ZIPs

Very hard1 ZIP

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: 2.1 miles
Profiles with evidence: 1/1

Confidence labels

High: 1Moderate: 0Low: 0

Observation window: Apr 19, 2016 to Jan 22, 2026.

ZIP directory

Water reports in Dover

Open a ZIP for site-level provenance and measurements.

ZIP code

07801

Very Hard

267 PPM

Nearest site: 2.1 mi
Confidence: High

View full ZIP evidence →

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other New Jersey communities

Boonton

Morris County

127 PPM median

Florham Park

Morris County

238 PPM median

Kinnelon

Morris County

123 PPM median

Lincoln Park

Morris County

126 PPM median

Madison

Morris County

227 PPM median

Netcong

Morris County

280 PPM median

Search all 60 New Jersey cities →

Questions people ask

About water in Dover

Is the water hard?

Check the utility-reported result above when available. Nearby environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.