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City water profile

Awendaw water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Awendaw, South Carolina.

Median indexed hardness

90PPM

One indexed ZIP

Range 89.9–89.9 PPM

State comparison
71 PPM above
State hardness rank
#9 of 173
Matched utilities
2
Active health records
0

City summary

What the indexed records say

Awendaw has 1 published ZIP profile across Charleston County. The indexed median is 90 PPM, compared with 19 PPM across South Carolina.

Among the 173 South Carolinacities with an indexed median, Awendaw ranks #9from highest to lowest. Across all 236 state ZIP profiles, available estimates run from 4.2to 106 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard1 ZIP
Hard0 ZIPs
Very hard0 ZIPs

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
8.5 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Jun 26, 2018 to Nov 14, 2019.

ZIP directory

Water reports in Awendaw

Open a ZIP for site-level provenance and measurements.

ZIP code

29429

Moderately Hard

89.9 PPM

Nearest site
8.5 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Awendaw Town Of (sc1010504)

PWSID SC1010504

Groundwater
System population served
713
Last reported
Jun 29, 2026

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

Windwood Farm Home (sc1070963)

PWSID SC1070963

Groundwater
System population served
33
Last reported
Jun 29, 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
Consumer Confidence RuleSC1010504Oct 1, 2025Unaddressed
Consumer Confidence RuleSC1070963Oct 1, 2025Unaddressed
LEAD AND COPPER RULE REVISIONSSC1070963Oct 17, 2024Resolved
LEAD AND COPPER RULE REVISIONSSC1070963Oct 17, 2024Resolved · health-based
Lead and Copper RuleSC1010504Oct 1, 2023Resolved

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 Awendaw

Is the water hard?

The indexed city median is 90 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.