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City water profile

Water hardness in Alton

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

Utility-reported hardness

Not yet available

Check your provider and source →
State comparison
Unavailable
Evidence comparison rank
—
Matched utilities
4
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.

Alton Water Works

NH0061010 · Groundwater · 1,800 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (2)

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

Above action level
Reported level
0.21 mg/L
Action level
0.015 mg/L

1400% of the listed benchmark

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

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level
Reported level
2.4 mg/L
Action level
1.3 mg/L

185% of the listed benchmark

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

Violation history (1)
Imported violation history for Alton Water Works
RuleStatusPeriod
Lead and Copper RuleUnaddressedMar 31, 2026

Merrymeeting Mhp

NH0063020 · Groundwater · 265 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (2)

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

Above action level
Reported level
0.022 mg/L
Action level
0.015 mg/L

147% of the listed benchmark

Monitoring period: Jan 1, 2011 to Dec 31, 2011

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level
Reported level
4.11 mg/L
Action level
1.3 mg/L

316% of the listed benchmark

Monitoring period: Jan 1, 2011 to Dec 31, 2011

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Eagles Rest Mhp

NH0062010 · Groundwater · 138 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (0)

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.

No comparable numerical result available

Federal SDWIS data does not provide a usable numerical result and benchmark for this profile. Missing data is not a pass. Check the serving utility's current Consumer Confidence Report.

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Lakeside At Winnipesaukee

NH0062050 · Groundwater · 85 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (0)

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.

No comparable numerical result available

Federal SDWIS data does not provide a usable numerical result and benchmark for this profile. Missing data is not a pass. Check the serving utility's current Consumer Confidence Report.

Violation history (29)
Imported violation history for Lakeside At Winnipesaukee
RuleStatusPeriod
Public NoticeResolvedMar 7, 2023 to Apr 4, 2023
Public NoticeResolvedMar 7, 2023 to Apr 4, 2023
ArsenicResolvedOct 1, 2022 to Dec 31, 2022
NitrateResolvedJan 1, 2022 to Dec 31, 2022
ArsenicResolvedOct 1, 2021 to Dec 31, 2021
Consumer Confidence RuleResolvedJul 1, 2021 to Jul 22, 2021
NitrateResolvedJan 1, 2021 to Dec 31, 2021
Combined UraniumResolvedJan 1, 2021 to Dec 31, 2021
cis-1,2-DichloroethyleneResolvedJan 1, 2021 to Dec 31, 2021
Xylenes, TotalResolvedJan 1, 2021 to Dec 31, 2021
DICHLOROMETHANEResolvedJan 1, 2021 to Dec 31, 2021
1,1-DichloroethyleneResolvedJan 1, 2021 to Dec 31, 2021
trans-1,2-DichloroethyleneResolvedJan 1, 2021 to Dec 31, 2021
1,2-DichloroethaneResolvedJan 1, 2021 to Dec 31, 2021
1,1,1-TrichloroethaneResolvedJan 1, 2021 to Dec 31, 2021
Carbon tetrachlorideResolvedJan 1, 2021 to Dec 31, 2021
1,2-DichloropropaneResolvedJan 1, 2021 to Dec 31, 2021
TrichloroethyleneResolvedJan 1, 2021 to Dec 31, 2021
1,1,2-TrichloroethaneResolvedJan 1, 2021 to Dec 31, 2021
BenzeneResolvedJan 1, 2021 to Dec 31, 2021
TolueneResolvedJan 1, 2021 to Dec 31, 2021
EthylbenzeneResolvedJan 1, 2021 to Dec 31, 2021
StyreneResolvedJan 1, 2021 to Dec 31, 2021
1,2,4-TrichlorobenzeneResolvedJan 1, 2021 to Dec 31, 2021
CHLOROBENZENEResolvedJan 1, 2021 to Dec 31, 2021
p-DichlorobenzeneResolvedJan 1, 2021 to Dec 31, 2021
Vinyl chlorideResolvedJan 1, 2021 to Dec 31, 2021
TetrachloroethyleneResolvedJan 1, 2021 to Dec 31, 2021
o-DichlorobenzeneResolvedJan 1, 2021 to Dec 31, 2021

City summary

What the indexed records say

Alton has 2 published ZIP profiles across Belknap County. The regional-evidence median is 40 PPM. The city does not meet the stricter comparison standard.

The 39.2–41.6 PPM range shows how much the available ZIP estimates vary within the city label. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft2 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
12.7 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 0Low: 2

Observation window: Jul 24, 2019 to Jul 25, 2019.

ZIP directory

Water reports in Alton

Open a ZIP for site-level provenance and measurements.

ZIP code

03809

Soft

41.6 PPM

Nearest site
9.6 mi
Confidence
Low

View full ZIP evidence →

ZIP code

03810

Soft

39.2 PPM

Nearest site
12.7 mi
Confidence
Low

View full ZIP evidence →

Practical next steps

Move from index to evidence

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

Questions people ask

About water in Alton

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.