Early access · Rate data is actively expanding · Verify current rates with your utility
whatwatercosts.org

Have a more current rate document? Submit the URL and we'll update our data.

How we calculated this
Extracted by: codex/gpt-5.6-luna · 08/14/2026
Source:
Quality checks: 9/9 passed
  • Monotonic pricing
  • Price range plausible
  • Fixed charge range
  • No zero tier prices
  • Tier count (1–8)
  • Tier boundary scale
  • Residential customer class
  • Effective date parseable
  • Plausible for MN
Fixed: $22.73 bimonthly ÷ 2 = $11.37/mo
Volume: 6,000 gal × 2 = 12,000 gal = 12.00 kgal
  0–10 kgal  ×  $3.8600/kgal  =  $38.60
  10–12.00 kgal  ×  $4.6300/kgal  =  $9.26
  Subtotal: $47.86 bimonthly ÷ 2 = $23.93/mo
Total: $11.37 + $23.93 = $35.30/mo

Leaving whatwatercosts.org

You're about to open the source document we used to extract this utility's rate data.

Open ↗
← Back
PRIOR LAKE, MN

SOUTH WATER TREATMENT PLANT (SWTP)

SOUTH WATER TREATMENT PLANT (SWTP) serves 24,959 people in PRIOR LAKE, MN. The monthly residential water bill at 6,000 gallons is $35.30, 33% below the national average of $52.35.

Updated Aug 2026

Beta. Data is actively being expanded. Results may vary. if something looks off.

Monthly Rate

$35.30 / 6k gal
-33% vs natl avg

Volumetric Rate

$5.88 / 1k gal

Population Served

24,959

Water Burden

0.3% of income (annual)
of median zip income · affordability threshold: 2%

Details

Provider Type
Native American
Primary Source
Groundwater
Data Quality
Model estimate
Rate Source
PWSID
055294506

Methodology

Rates are standardized to 6,000 gallons per month for a typical residential consumer with a 5/8" or 3/4" meter. Includes fixed base charges and volumetric charges. Excludes taxes, sewer fees, and other surcharges.

Full methodology ↗