Shoal & Stem

DeRidder, LA tap water

Supplied mostly by City of Deridder Water System, plus 1 other utility. Here's what the water means for your fish.

Disinfectant

Chlorine

Your water is treated with chlorine. It slowly gases off from standing water, and any water conditioner removes it.

Safety for fish and shrimp

Nitrate (NO₃)

Area estimate

0.1–3 ppm (Low)

Typical 0.2 ppm

Low, so water changes lower your tank's nitrate well.

Area estimate from nearby wells: USGS well samples in your county (2000–2020).

Water chemistry

General hardness

Not published yet

We haven't found this number yet. A drop test kit gives you your exact reading.

Carbonate hardness (alkalinity)

Not published yet

We haven't found this number yet. A drop test kit gives you your exact reading.

pH

Not published yet

We haven't found this number yet. A drop test kit gives you your exact reading.

  • City of Deridder Water System and Magnolia-Green Acres Subdivision add phosphate to protect pipes. It can feed algae in tanks without much plant growth.
  • City of Deridder Water System and Magnolia-Green Acres Subdivision soften their water at the plant, so it may be softer than the local groundwater.

Who supplies DeRidder, LA

  • City of Deridder Water System

    Serves 93% of residents · Groundwater (wells) · Chlorine

  • Magnolia-Green Acres Subdivision

    Serves 6% of residents · Groundwater (wells) · Chlorine

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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