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Local water dashboard

Official source aggregation

Water quality in Jonesport, ME 04649

A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Washington County.

1 active health-based violation
Primary matched system
Gaelic Square Housing
Source water
Groundwater + Groundwater influenced by surface water
County
Washington County
Profile updated

At a glance

What the current records say

Hardness

Moderately Hard

94.5 PPM · 5.5 GPG

Compliance screen

Review needed

1 active health-based record

Lead 90th percentile

0.001 mg/L

7% of action level

Utility match

2 systems

Serves 50 people system-wide

Hardness meter

How hard is the water?

Moderately Hard

Estimated local hardness

USGS hardness classification scale

94.5 PPM

Soft
0–59Moderate
60–120Hard
121–180Very hard
181+

Parts per million

94.5

mg/L as CaCO₃ equivalent

Grains per gallon

5.5

1 GPG ≈ 17.1 PPM

What this means at home

At 94.5 PPM, mineral scale can build up on fixtures and heating elements, reduce soap lather, and leave visible spotting. Hardness is primarily an aesthetic and appliance concern—not itself a tap-water safety rating.

USGS sites used

1

Nearest site

74.6 mi

Observation range

Oct 11, 2023–Oct 11, 2023

Estimate confidence

Low

Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: ME-PEW 692 (Well).USGS source documentation ↗

Regional context

Is 04649 typical?

These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.

Jonesport median

95 PPM

About the same

1 indexed ZIP readings · Range 94.5–94.5 PPM

Maine median

39 PPM

56 PPM higher

122 indexed ZIP readings · Range 3.2–94.5 PPM

EPA benchmark screen

Contaminant snapshot

Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.

1 pass3 fail

Lead (PB90)

0.001 mg/L

Reported Jun 30, 2026

Copper (CU90)

3.4 mg/L

Reported Dec 31, 2024

Numerical coverage

4 comparable results

Missing values remain blank; absence is not treated as a pass.

Lead (90th percentile)

Measured in mg/L

Pass

Local 0.001

EPA limit 0.015

Local level is 7% of the listed EPA limit.

Copper (90th percentile)

Measured in mg/L

Fail

Local 3.4

EPA limit 1.3

Local level is 262% of the listed EPA limit.

TTHM

Measured in MG/L

Fail

Local 0.084

EPA limit 0.08

Local level is 105% of the listed EPA limit.

Total Haloacetic Acids (HAA5)

Measured in MG/L

Fail

Local 0.075

EPA limit 0.06

Local level is 125% of the listed EPA limit.

Share of EPA benchmark

100% line = listed limit

EPA SDWIS compliance

Reported violation history

Open EPA source documentation ↗
2026Q2
All records
23
Health-based
19
Active health-based
1
Contaminant or ruleSystemStatusPeriod
Interim Enhanced Surface Water Treatment RuleHealth-basedME0091830ResolvedNov 1, 2025through Nov 30, 2025
Surface Water Treatment RuleHealth-basedME0091830ResolvedNov 1, 2025through Nov 30, 2025
Interim Enhanced Surface Water Treatment RuleHealth-basedME0091830ResolvedOct 1, 2025through Oct 31, 2025
Consumer Confidence RuleME0090745UnaddressedJul 1, 2025
Surface Water Treatment RuleHealth-basedME0091830ResolvedJun 1, 2025through Jun 30, 2025
Lead and Copper RuleHealth-basedME0090745UnaddressedMar 4, 2025
TTHMHealth-basedReported 0.084 MG/L · MCL 0.08ME0091830ResolvedOct 1, 2024through Dec 31, 2024
Lead and Copper RuleHealth-basedME0090745ResolvedSep 12, 2024through Apr 7, 2025
TTHMHealth-basedReported 0.089 MG/L · MCL 0.08ME0091830ResolvedJul 1, 2024through Sep 30, 2024
Total Haloacetic Acids (HAA5)Health-basedReported 0.075 MG/L · MCL 0.06ME0091830ResolvedJul 1, 2024through Sep 30, 2024
Total Haloacetic Acids (HAA5)Health-basedReported 0.082 MG/L · MCL 0.06ME0091830ResolvedApr 1, 2024through Jun 30, 2024
TTHMHealth-basedReported 0.086 MG/L · MCL 0.08ME0091830ResolvedApr 1, 2024through Jun 30, 2024
Total Haloacetic Acids (HAA5)Health-basedReported 0.079 MG/L · MCL 0.06ME0091830ResolvedJan 1, 2024through Mar 31, 2024
TTHMHealth-basedReported 0.084 MG/L · MCL 0.08ME0091830ResolvedJan 1, 2024through Mar 31, 2024
Total Haloacetic Acids (HAA5)Health-basedReported 0.073 MG/L · MCL 0.06ME0091830ResolvedOct 1, 2023through Dec 31, 2023
Lead and Copper RuleHealth-basedME0090745ResolvedJan 1, 2023through Mar 28, 2023
TTHMHealth-basedReported 0.081 MG/L · MCL 0.08ME0091830ResolvedJan 1, 2023through Mar 31, 2023
Lead and Copper RuleME0091830ResolvedOct 1, 2022through Dec 5, 2024
TTHMHealth-basedReported 0.086 MG/L · MCL 0.08ME0091830ResolvedOct 1, 2022through Dec 31, 2022
Lead and Copper RuleHealth-basedME0090745ResolvedSep 12, 2022through Sep 28, 2022

No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.

Solutions matcher

Your personalized water action plan

Matched to Jonesport ZIP 04649 using 94.5 PPM nearby hardness and 4 reported measurement benchmarks.

1 match

Drinking water protection

Under-Sink Reverse Osmosis System

Copper (90th percentile), TTHM, Total Haloacetic Acids (HAA5), Lead and Copper Rule have a measured benchmark flag or active health-based SDWIS record in this profile.

A certified multi-stage RO system targets a broader range of dissolved contaminants at the kitchen tap.

Explore under-sink filtration

Affiliate disclosure: we may earn a commission from qualifying purchases, at no added cost to you. Product matching is educational and does not replace certified water testing.

Frequently asked

Water questions for Jonesport

Is tap water safe in Jonesport?+

EPA ECHO reports 1 active health-based violation among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.

How hard is the water?+

Nearby USGS observations produce an estimate of 94.5 PPM, or 5.5 grains per gallon, classified as moderately hard. This is not a household tap measurement.

Do I need a water softener?+

There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.