City water profile

Water hardness in Rolla

Find official utility reports, understand hardness, and check the water system serving your home in Rolla, Missouri.

Utility-reported hardness

Not yet available

Check your provider and source →

State comparison: Unavailable
Evidence comparison rank: —
Matched utilities: 6
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.

Rolla Pws

MO3010700 · Groundwater · 20,800 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 (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: 0.0039 mg/L
Action level: 0.015 mg/L

26% of the listed benchmark

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

Violation history (2)

Imported violation history for Rolla Pws
Rule	Status	Period
LEAD AND COPPER RULE REVISIONS	Unaddressed	Jul 2, 2025
Consumer Confidence Rule	Resolved	Jul 1, 2021 to Dec 6, 2021

Phelps County Pwsd 2 South

MO3024467 · Groundwater · 1,768 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

Below action level

Reported level: 0.0022 mg/L
Action level: 0.015 mg/L

15% of the listed benchmark

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

Violation history (1)

Imported violation history for Phelps County Pwsd 2 South
Rule	Status	Period
Revised Total Coliform Rule	Resolved	Sep 1, 2022 to Sep 30, 2022

Phelps County Pwsd 2 North

MO3024466 · Groundwater · 523 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

Below action level

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 (1)

Imported violation history for Phelps County Pwsd 2 North
Rule	Status	Period
Revised Total Coliform Rule	Resolved	Sep 1, 2022 to Sep 30, 2022

Stately Mansion Mobile Villa

MO3048123 · Groundwater · 100 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

Below action level

Reported level: 0 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

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

Violation history (23)

Imported violation history for Stately Mansion Mobile Villa
Rule	Status	Period
Revised Total Coliform Rule	Resolved	Nov 1, 2025 to Nov 30, 2025
Groundwater Rule	Resolved	Apr 1, 2025 to Apr 30, 2025
Groundwater Rule	Archived	Dec 1, 2024 to Dec 31, 2024
Revised Total Coliform RuleHealth-based	Resolved	Nov 25, 2024 to Dec 24, 2024
Lead and Copper Rule	Unaddressed	Oct 1, 2024
Revised Total Coliform Rule	Resolved	Feb 1, 2024 to Feb 29, 2024
Lead and Copper Rule	Resolved	Oct 1, 2023 to Jul 25, 2024
Public Notice	Resolved	Sep 10, 2023 to Sep 10, 2023
Public Notice	Resolved	Jun 30, 2023 to Aug 30, 2023
Groundwater Rule	Resolved	May 1, 2023 to May 31, 2023
Revised Total Coliform Rule	Resolved	Apr 1, 2023 to Apr 30, 2023
Groundwater Rule	Resolved	Jan 1, 2023 to Jan 31, 2023
Revised Total Coliform Rule	Resolved	Dec 1, 2022 to Dec 31, 2022
Groundwater Rule	Resolved	Nov 1, 2022 to Nov 30, 2022
Revised Total Coliform Rule	Resolved	Sep 1, 2022 to Sep 30, 2022
Groundwater Rule	Resolved	Jul 1, 2022 to Jul 31, 2022
Revised Total Coliform Rule	Resolved	Jun 1, 2022 to Jun 30, 2022
Groundwater Rule	Resolved	May 1, 2022 to May 31, 2022
Total Haloacetic Acids (HAA5)	Resolved	Jan 1, 2022 to Dec 31, 2022
TTHM	Resolved	Jan 1, 2022 to Dec 31, 2022
Groundwater Rule	Resolved	Aug 1, 2021 to Aug 31, 2021
Consumer Confidence Rule	Resolved	Jul 1, 2021 to Dec 6, 2021
Revised Total Coliform Rule	Resolved	Jan 1, 2021 to Jan 31, 2021

Shady Lane Trailer Park

MO3048122 · Groundwater · 48 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

Below action level

Reported level: 0 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2011 to Dec 31, 2019

Violation history (0)

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

Alta Vista Mobile Villa

MO3048125 · Groundwater · 30 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

Below action level

Reported level: 0.0012 mg/L
Action level: 0.015 mg/L

8% of the listed benchmark

Monitoring period: Jan 1, 2014 to Dec 31, 2022

Violation history (0)

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

City summary

What the indexed records say

Rolla has 2 published ZIP profiles across Phelps County. The regional-evidence median is 216 PPM. The city does not meet the stricter comparison standard.

The 215.5–215.5 PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs

Moderately hard0 ZIPs

Hard0 ZIPs

Very hard2 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: 5.3 miles
Profiles with evidence: 2/2

Confidence labels

High: 0Moderate: 2Low: 0

Observation window: May 31, 2016 to May 3, 2021.

ZIP directory

Water reports in Rolla

Open a ZIP for site-level provenance and measurements.

ZIP code

65401

Very Hard

215.5 PPM

Nearest site: 5.3 mi
Confidence: Moderate

View full ZIP evidence →

ZIP code

65409

Very Hard

215.5 PPM

Nearest site: 2.8 mi
Confidence: Moderate

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 Missouri communities

Edgar Springs

Phelps County

209 PPM median

St. James

Phelps County

268 PPM median

Birch Tree

Shannon County

216 PPM median

Waynesville

Pulaski County

216 PPM median

Cabool

Texas County

216 PPM median

West Plains

Howell County

216 PPM median

Search all 504 Missouri cities →

Questions people ask

About water in Rolla

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.