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City water profile

Norris water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Norris, Tennessee.

Median indexed hardness

5PPM

2 indexed ZIPs

Range 4.5–4.5 PPM

State comparison
45 PPM below
State hardness rank
#200 of 222
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Norris has 2 published ZIP profiles across Anderson County. The indexed median is 5 PPM, compared with 50 PPM across Tennessee.

Among the 222 Tennesseecities with an indexed median, Norris ranks #200from highest to lowest. Across all 323 state ZIP profiles, available estimates run from 4.5to 247 PPM.

The 4.5–4.5 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
42.3 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 0Low: 2

Observation window: Jan 11, 2016 to Mar 9, 2026.

ZIP directory

Water reports in Norris

Open a ZIP for site-level provenance and measurements.

ZIP code

37705

Soft

4.5 PPM

Nearest site
42.3 mi
Confidence
Low

View full ZIP evidence →

ZIP code

37828

Soft

4.5 PPM

Nearest site
41.9 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Norris Water Commission

PWSID TN0000513

Groundwater influenced by surface water
System population served
2,126
Last reported
May 14, 2026

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

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Public NoticeTN0000513Jul 28, 2019Unaddressed
Public NoticeTN0000513Jul 1, 2015Unaddressed
Interim Enhanced Surface Water Treatment RuleTN0000513May 1, 2013Unaddressed

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. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Norris

Is the water hard?

The indexed city median is 5 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

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.