Shoal & Stem
Tap water lookup

Elizabeth, NJ tap water

Supplied by Liberty Water Company. Here's what its water means for your fish.

Disinfectant

Chloramine

Your water is treated with chloramine. Unlike chlorine, it doesn't gas off when water sits out, and many pitcher and fridge filters aren't rated to remove it. Conditioners that list chloramine on the label break it apart, which frees about 0.07 ppm of ammonia here. Some utilities switch to plain chlorine for a few weeks a year.

Safety for fish and shrimp

Ammonia (with conditioner)

Estimate

0.01–0.9 ppm (Low)

Typical 0.07 ppm

This is what a conditioner frees when it breaks the chloramine apart. A cycled filter clears it within a day.

Estimated from the chloramine level Liberty Water Company reports (2025).

Nitrate (NO₃)

4.4–8.9 ppm (Low)

Typical 8.9 ppm

Water changes can't take your tank's nitrate below this level.

Published by your utility: Liberty Water Company's 2025 water quality report.

Chlorine or chloramine at the tap

0–3.7 ppm

Typical 0.3 ppm

At tap levels, chlorine and chloramine are toxic to fish, shrimp and the bacteria in a filter. Water conditioners are made for this range.

Published by your utility: Liberty Water Company's 2025 water quality report.

Water chemistry

General hardness

53–143 ppm

Typical 143 ppm

Moderately hard. Great for livebearers, and most community fish adapt.

Published by your utility: Liberty Water Company's 2025 water quality report.

Carbonate hardness (alkalinity)

40 ppm

Moderate buffering. pH should stay fairly steady.

From EPA monitoring data (2013–2019).

pH

7–7.2

Typical 7.1

Most community fish do well here. Stable water matters more than the exact number.

From EPA monitoring data (2012–2019).

  • Liberty Water Company adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
  • Liberty Water Company softens its water at the plant, so it may be softer than the local groundwater.

Who supplies Elizabeth, NJ

  • Liberty Water Company

    Serves all residents · Buys water from New Jersey American Water – Raritan · Chloramine

    2025 water quality report

Our data comes from public records and is still incomplete. Many utilities don't publish every number, so we're adding more all the time. Your city's range is a starting point: testing your own tap is the only way to know exactly what's in it.

Tap water lookup covers US cities only for now. Want to know why it matters? Read our story on tap water.

Compiled by Shoal & Stem from public records. Free to cite with a link.

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