Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Aberdeen, SD 57401
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Brown County.
1 active health-based record(s) across possible systems
- Largest possible serving system
- Aberdeen
- Source water
- Surface water + Groundwater
- County
- Brown 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
Review needed
1 active health-based record
Measurements by utility
Each result belongs to a specific system.
Utility match
10 systems
Serves 27,989 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.
Aberdeen
SD4600020 · Surface water · 27,989 people served system-wide
EPA SDWIS explicitly lists this ZIP in the system's served geography.
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
- 0.003 mg/L
- Action level
- 0.015 mg/L
20% of the listed benchmark
Monitoring period: Jan 1, 2025 to Jun 30, 2025
Violation history (7)
| Rule | Status | Period |
|---|---|---|
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Feb 1, 2026 to Feb 28, 2026 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Resolved | May 1, 2025 to May 31, 2025 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Resolved | Dec 1, 2024 to Dec 31, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Resolved | Dec 1, 2024 to Dec 31, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Resolved | Nov 1, 2024 to Nov 30, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Resolved | Jul 1, 2023 to Jul 31, 2023 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Resolved | Apr 1, 2022 to Apr 30, 2022 |
Web Water Development Association
SD4601089 · Surface water · 20,750 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
- 0.002 mg/L
- Action level
- 0.015 mg/L
13% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Copper (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 1.46 mg/L
- Action level
- 1.3 mg/L
112% of the listed benchmark
Monitoring period: Jan 1, 1995 to Dec 31, 1995
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Mina Lake Sanitary District
SD4600501 · Surface water · 863 people served system-wide
EPA SDWIS explicitly lists this ZIP in the system's served geography.
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
- 0.002 mg/L
- Action level
- 0.015 mg/L
13% of the listed benchmark
Monitoring period: Jan 1, 2024 to Dec 31, 2024
Violation history (2)
| Rule | Status | Period |
|---|---|---|
| Chlorine | Resolved | Apr 1, 2023 to Jun 30, 2023 |
| Lead and Copper Rule | Resolved | Oct 1, 2021 to Sep 28, 2022 |
Lakeside Estates
SD4600022 · Surface water · 460 people served system-wide
EPA SDWIS explicitly lists this ZIP in the system's served geography.
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
- 0.001 mg/L
- Action level
- 0.015 mg/L
7% of the listed benchmark
Monitoring period: Jan 1, 2024 to Dec 31, 2024
Violation history (3)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Unaddressed | Jul 1, 2025 |
| Lead and Copper Rule | Resolved | Oct 1, 2023 to Aug 21, 2024 |
| Chlorine | Resolved | Apr 1, 2023 to Jun 30, 2023 |
Country Village Park
SD4600021 · Surface water · 340 people served system-wide
EPA SDWIS explicitly lists this ZIP in the system's served geography.
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
- 0.001 mg/L
- Action level
- 0.015 mg/L
7% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2023
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Prairiewood Property Owners
SD4602125 · Surface water · 300 people served system-wide
EPA SDWIS explicitly lists this ZIP in the system's served geography.
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
- 0.001 mg/L
- Action level
- 0.015 mg/L
7% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Violation history (2)
| Rule | Status | Period |
|---|---|---|
| Chlorine | Resolved | Apr 1, 2023 to Jun 30, 2023 |
| Stage 1 Disinfectants and Disinfection Byproducts RuleHealth-based | Resolved | Apr 1, 2021 to Oct 20, 2021 |
Fordham Colony
SD4602064 · Groundwater · 142 people served system-wide
EPA SDWIS explicitly lists this ZIP in the system's served geography.
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, 2025 to Dec 31, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Jobee Acres
SD4600019 · Surface water · 108 people served system-wide
EPA SDWIS explicitly lists this ZIP in the system's served geography.
1 reported active health-based record(s) for this system
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
- 0.002 mg/L
- Action level
- 0.015 mg/L
13% of the listed benchmark
Monitoring period: Jan 1, 2024 to Dec 31, 2024
Violation history (10)
| Rule | Status | Period |
|---|---|---|
| Chlorine | Archived | Jan 1, 2026 to Mar 31, 2026 |
| Stage 1 Disinfectants and Disinfection Byproducts RuleHealth-based | Unaddressed | Nov 12, 2025 |
| Revised Total Coliform Rule | Resolved | Aug 1, 2025 to Aug 31, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | Resolved | Oct 17, 2024 to Mar 17, 2025 |
| LEAD AND COPPER RULE REVISIONS | Resolved | Oct 17, 2024 to Mar 17, 2025 |
| Consumer Confidence Rule | Unaddressed | Jul 1, 2024 |
| Lead and Copper Rule | Resolved | Oct 1, 2023 to Sep 30, 2024 |
| Revised Total Coliform Rule | Resolved | Apr 1, 2022 to Apr 30, 2022 |
| Revised Total Coliform Rule | Resolved | Jan 1, 2022 to Jan 31, 2022 |
| Chlorine | Resolved | Jan 1, 2022 to Mar 31, 2022 |
Pleasant Valley Estates
SD4600404 · Surface water · 105 people served system-wide
EPA SDWIS explicitly lists this ZIP in the system's served geography.
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
- 0.001 mg/L
- Action level
- 0.015 mg/L
7% of the listed benchmark
Monitoring period: Jan 1, 2024 to Dec 31, 2024
Violation history (4)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Unaddressed | Jul 1, 2025 |
| Groundwater Rule | Resolved | Jul 1, 2023 to Aug 25, 2023 |
| Chlorine | Resolved | Apr 1, 2023 to Jun 30, 2023 |
| Lead and Copper Rule | Resolved | Oct 1, 2021 to Sep 28, 2022 |
Northwood First Subdivision
SD4602342 · Surface water · 90 people served system-wide
EPA SDWIS explicitly lists this ZIP in the system's served geography.
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
- 0.001 mg/L
- Action level
- 0.015 mg/L
7% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Violation history (2)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Resolved | Jul 1, 2023 to Apr 1, 2024 |
| Chlorine | Resolved | Apr 1, 2023 to Jun 30, 2023 |
Hardness estimate unavailable
No responsible local estimate yet
We did not find enough qualifying recent USGS hardness observations within 25 miles of this ZIP centroid. We leave the value blank instead of substituting a state average. Ask the serving utility or test the household tap for a property-specific result.
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
An active health-based record is present. Follow the utility's current notice and public-health instructions.
Find an official utility report →Test for the decision you face
Ask the utility for hardness or test at the tap. For health concerns, use a certified laboratory and targeted analysis.
Convert your hardness test result →Frequently asked
Water questions for Aberdeen
Is tap water safe in Aberdeen?+
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?+
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.