Grand Terrace water and sewer rates

Who supplies water to Grand Terrace houses, what it costs, and how the sewer charge works.

Riverside Highland Water Company

Riverside Highland Water Company billing rates effective April 24, 2025: billed bi-monthly; a 3/4-inch domestic meter charge per billing, an assessment of $51.90 a year per share, and four consumption tiers per 100 cubic feet.

Use a month	Price per unit (CCF, 748 gallons)
Fixed charge	$32.87 a month
0 to 20 units	$1.16
20 to 35 units	$1.51
35 to 55 units	$1.78
55 to more	$2.05

Source: In 2025 the company pumped 52 percent of its water from company-owned wells, and received 33 percent from the Encanto Booster, supplied by the City of San Bernardino.
Hardness: Total hardness in the 2025 report ranged from 160 to 290 mg/L (average 213.33).
Standards: The company reports that in 2025 its drinking water met all EPA and State of California drinking water health standards.

Sewer

Sewer rates are established by the City of Colton and adopted by Grand Terrace; Burrtec bills residential sewer customers. The sewer rates notice lists a residential monthly rate of $59.90 per EDU, effective July 1, 2026.

Dates

When	What
Even months	Riverside Highland water bills are mailed at the beginning of even months and come due around the first week of the odd month.

Pay or manage it

Sources

Checked October 22, 2026. Every number here comes from the public sources listed, matched by our checker.

Rates change every year; this page shows when it was last checked. Nothing here is legal, tax or insurance advice.