Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Millsboro, DE 19966
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Sussex County.
Historical measurement record needs context
- Largest possible serving system
- Long Neck Water Company
- Source water
- Groundwater
- County
- Sussex County
- Profile updated
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 →At a glance
What the current records say
EPA quarter 2026Q2
All possible systems
No active flag
0 active health-based records
Measurements by utility
Each result belongs to a specific system.
Utility match
10 systems
Serves 11,000 people system-wide
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.
Long Neck Water Company
DE0000625 · Groundwater · 11,000 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 (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
- Reported level
- 0.0011 mg/L
- Action level
- 0.015 mg/L
7% of the listed benchmark
Monitoring period: Jan 1, 2021 to Dec 31, 2023
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Millsboro Water Department
DE0000622 · Groundwater · 8,568 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
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2026 to Jun 30, 2026
Copper (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 1.96 mg/L
- Action level
- 1.3 mg/L
151% of the listed benchmark
Monitoring period: Jul 11, 1993 to Jan 10, 1994
Violation history (1)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Dec 16, 2024 to Jun 26, 2025 |
Baywood Greens
DE00A0425 · Groundwater · 909 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 (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
- Reported level
- 7.0e-4 mg/L
- Action level
- 0.015 mg/L
5% of the listed benchmark
Monitoring period: Jan 1, 2020 to Dec 31, 2022
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Long Neck Village
DE00A0188 · Groundwater · 345 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 (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
- Reported level
- 0.0082 mg/L
- Action level
- 0.015 mg/L
55% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Violation history (2)
| Rule | Status | Period |
|---|---|---|
| Revised Total Coliform RuleHealth-based | Resolved | Oct 1, 2025 to Oct 24, 2025 |
| Lead and Copper Rule | Resolved | Jul 1, 2022 to May 8, 2023 |
Shawns Hideaway System #1
DE0001646 · Groundwater · 341 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 (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
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Carey Estates, Llc
DE0000521 · Groundwater · 312 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 (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
- Reported level
- 0.0115 mg/L
- Action level
- 0.015 mg/L
77% of the listed benchmark
Monitoring period: Jan 1, 2025 to Jun 30, 2025
Violation history (1)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Unaddressed | Jan 1, 1994 |
Country Living Mobile Court
DE0000623 · Groundwater · 255 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 (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
- Reported level
- 0.0103 mg/L
- Action level
- 0.015 mg/L
69% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Homestead Park
DE0000264 · Groundwater · 230 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 (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
- Reported level
- 0.0026 mg/L
- Action level
- 0.015 mg/L
17% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Enchanted Acres Mhc Llc
DE0000259 · Groundwater · 225 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
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2021 to Dec 31, 2023
Copper (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 1.5 mg/L
- Action level
- 1.3 mg/L
115% of the listed benchmark
Monitoring period: Jan 1, 2019 to Jun 30, 2019
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Woodlands Of Millsboro Pump District
DE00A0279 · Groundwater · 171 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 (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
- Reported level
- 3.5e-4 mg/L
- Action level
- 0.015 mg/L
2% of the listed benchmark
Monitoring period: Jan 1, 2021 to Dec 31, 2023
Violation history (1)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Unaddressed | Jan 1, 1994 |
Hardness meter
What does nearby environmental evidence show?
40.8
PPM as CaCO₃
Soft
PPM
40.8
GPG
2.4
Regional environmental evidence
USGS hardness classification scale
40.8 PPM
Soft
0–60Moderate
61–120Hard
121–180Very hard
181+
0–60Moderate
61–120Hard
121–180Very hard
181+
Parts per million
40.8
mg/L as CaCO₃ equivalent
Grains per gallon
2.4
1 GPG ≈ 17.1 PPM
How to use regional evidence
These samples describe nearby environmental water. They cannot establish whether your tap water is soft or hard. Use a utility result or a tap test for appliance settings and treatment sizing.
USGS sites used
92
Nearest site
3.2 mi
Observation range
Apr 11, 2016–Aug 28, 2024
Regional evidence confidence
High
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: Qg32-18 (Well).USGS source documentation ↗Evidence tier: Regional environmental evidence. This value is not used as proof of the serving utility's treated-water hardness.
Regional context
Is 19966 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Millsboro median
41 PPM
About the same1 indexed ZIP readings · Range 40.8–40.8 PPM
Delaware median
63 PPM
22 PPM lower48 indexed ZIP readings · Range 31.1–129 PPM
Evidence-first next steps
Confirm the problem before choosing treatment
This profile can help you ask the right question. It cannot select equipment for a property without a current result from the serving utility or the tap.
Confirm the serving system
ZIP boundaries and utility service areas do not perfectly match. Verify the system on a water bill before relying on system-wide records.
Read the current utility report
A reported action-level record needs context. Check its monitoring period and the utility's current report.
Find an official utility report →Test for the decision you face
Use a tap hardness test before sizing a softener. For health concerns, use a certified laboratory and the correct sampling protocol.
Convert your hardness test result →Frequently asked
Water questions for Millsboro
Is tap water safe in Millsboro?+
EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.
How hard is the water?+
Utility-reported hardness is unavailable in this index. Regional samples do not establish tap-water hardness. Ask your provider or test your tap.
Do I need a water softener?+
Confirm hardness at your tap and consider actual scale or spotting before choosing treatment. Regional environmental values cannot determine whether you need a softener. A softener addresses hardness, not every contaminant.