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Water Hardness in Lodi, WI

Wisconsin · 1 zip codes · 6 matched water systems

329 PPM
19.3 GPG
Very Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 20266 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

Source context

How this city reading is built

This city reading is a weighted rollup across 6 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
6 USGS-backed sources
6 matched systems total for this city; USGS monitoring is used where treated-water reports are unavailable.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. This profile is weighted by known population served across matched systems.
Data recency
March 9, 2026
Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.

Water Systems in Lodi

These systems are matched to Lodi, WI. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

6 water systems
PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.
Portage Waterworks
WI1110039
Very Hard
285 PPMgroundwater10,437 servedHigh Confidence — USGS Monitoring
Lodi Waterworks
WI1110100
Very Hard
409 PPMgroundwater3,146 servedHigh Confidence — USGS Monitoring
Harmony Grove San Dist
WI1110101
Very Hard
409 PPMgroundwater1,950 servedHigh Confidence — USGS Monitoring
Crystal Lake Rv Resort Llc
WI1110066
Very Hard
409 PPMgroundwater725 servedHigh Confidence — USGS Monitoring
Harmony Mobile Manor
WI1110065
Very Hard
409 PPMgroundwater45 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Lodi, WI

What This Means For You

Recommendations are based on the displayed hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

Very Hard Water - Treatment Strongly Recommended

Your water is very hard. Without treatment, you can expect significant scale buildup in pipes and appliances, higher energy bills from reduced water heater efficiency, and persistent issues with skin and hair dryness.

Recommended Products

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | How to Test Your Water

Know your water hardness?

If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Lodi, WI.

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Frequently Asked Questions

How hard is the water in Lodi, WI?

The citywide weighted average water hardness in Lodi, WI is 329 PPM (19.3 GPG), classified as very hard. This is based on 6 matched water systems.

Do I need a water softener in Lodi, WI?

With a citywide average hardness of 329 PPM, a water softener is recommended for homes in Lodi. Confirm your tap reading before sizing equipment.

Is hard water in Lodi, WI safe to drink?

Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.

How many water systems serve Lodi, WI?

Lodi, Wisconsin is served by 6 matched water systems across 1 zip code.

Learn More About Your Water