Maricopa water and sewer rates
Who supplies water to Maricopa houses, what it costs, and how the sewer charge works.
Global Water – Santa Cruz Water Company
Global Water – Santa Cruz Water Company rates under ACC Decision No. 78644 (Phase 2, effective 1/1/2023): a monthly service charge by meter size plus commodity charges per 1,000 gallons in six tiers, with a 60% conservation rebate applied if consumption is below 6,000 gallons
| Use a month | Price per 1,000 gallons |
|---|---|
| Fixed charge | $30.36 a month |
| 0 to 1 thousand gallons | $0.62 |
| 1 to 5 thousand gallons | $1.01 |
| 5 to 6 thousand gallons | $1.41 |
| 6 to 7 thousand gallons | $12.63 |
| 7 to 10 thousand gallons | $3.52 |
| 10 to 18 thousand gallons | $4.50 |
| 18 to 25 thousand gallons | $5.50 |
| 25 to more | $6.58 |
- Source
- Thirteen wells located within the service area supply the Maricopa system.
- Hardness
- Hardness as calcium carbonate: 160 to 250 ppm, average 230 ppm (2024 data).
- Arsenic and nitrate
- In 2025 the highest arsenic detected was 7.5 ppb (peak running annual average 7.5 ppb) and the highest nitrate was 8.16 ppm.
- Violation
- In November 2025 the system collected 77 of 90 required routine coliform samples, a monitoring violation; no water quality problem was identified.
Sewer
Global Water – Palo Verde Utilities Company charges a flat monthly wastewater service charge of $70.07 for a 5/8 x 3/4-inch or 3/4-inch meter, less a $1.73 monthly Southwest Plant bill credit.
Ways to pay less
- Income at or below 300% of poverty: Global Water Customer Assistance Program. Qualifying residential Global Water customers can receive up to $350 per year per utility service toward their bill. Household income must be at or below 300% of the Federal Poverty Level. How: Contact Community Action Human Resources Agency (CAHRA) at 520-466-1112 or The Salvation Army at 520-705-6509.
- Keep water use under the 6,000-gallon rebate threshold. Global Water – Santa Cruz's tariff applies a 60% conservation rebate if consumption is below 6,000 gallons. How: View your monthly reads in the Global Water customer portal.
Pay or manage it
Sources
- Global Water – Santa Cruz tariff rate schedule (Decision 78644)
- Global Water – Palo Verde tariff rate schedule (Decision 78644)
- Global Water – Palo Verde Southwest Plant bill credit
- Global Water rate review customer notice (June 2026)
- Global Water: Santa Cruz / Palo Verde rate review
- Global Water – Santa Cruz 2025 Water Quality Report
- Global Water: customer assistance programs
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.