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Read by an AI agent (a large language model) from the utility's official rate schedule, then audited by a second model against the same schedule. This bill is for the main service area; customers in 1 other rate area (Ravensdale) pay different rates.
Bimonthly 5/8" meter charge of $46.50 = $23.25/mo First 8 CCF per 2 months × $2.80 = $22.40 Next 6 CCF × $3.95 = $23.70 Remaining 2.043 CCF × $6.70 (summer block 3) = $13.69 Usage of $59.79 per 2 months = $29.89/mo Total: $53.14/mo
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Utility profile · WA
COVINGTON WATER DISTRICT supplies water to about 56,000 people in Lake Morton-Berrydale, Lake Holm, and 4 other places in Washington. A typical household using 6,000 gallons a month pays an estimated $53.14 in the main service area, 9% below the national average.
Rates effective 2026-01-01
Updated Nov 2026
This bill is for the main service area; customers in 1 other rate area (Ravensdale) pay different rates.
| Service charge 5/8" meter |
$23.25 |
| Water used 8 ccf × $2.8/ccf ÷ 2 (billed every 2 months) |
$11.20 |
| Water used 6 ccf × $3.95/ccf ÷ 2 (billed every 2 months) |
$11.85 |
| Water used 2.043 ccf × $6.7/ccf ÷ 2 (billed every 2 months) |
$6.84 |
| Total | $53.14 |
Monthly cost (6k gal) vs up to 10 nearest utilities with published rates. Click to navigate.
Population served and the municipalities covered by this utility's service area.
Boundaries from the EPA Water System Service Areas dataset. Not all utilities have mapped boundaries.
Municipalities served
Supply and provider classification from EPA records.
Named intake/well source and interconnections (who this utility buys from or sells to) aren't captured yet — tracked separately for a future update.
Annual bill as a share of median household income in the service area.
We don't yet systematically track whether a utility offers income-based or sliding-scale pricing separate from its standard rates — tracked separately for a future update.
This rate was extracted from COVINGTON WATER DISTRICT's published tariff document by an AI research agent, then checked against a validation checklist before publishing. See the full methodology for how every utility on this site is sourced and scored.
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