Groundwater Contractors in Maricopa County, AZ
Groundwater Contractors in Maricopa County, Arizona
Maricopa County is Arizona’s most populous county and home to the Phoenix metropolitan area — a region of 5 million people that exists largely because of carefully managed water supplies. With 19 licensed groundwater contractors listed in this directory, Maricopa County has the deepest bench of well drilling, pump, and water treatment expertise in the state.
Groundwater in the Phoenix Active Management Area
Maricopa County sits primarily within the Phoenix Active Management Area (Phoenix AMA), one of five AMAs established by Arizona’s landmark 1980 Groundwater Management Act. The AMA was created specifically because decades of uncontrolled pumping had caused dramatic water table declines and visible land subsidence across the Salt River Valley.
The Phoenix AMA’s goal is to achieve safe yield — a balance between groundwater pumping and recharge — by 2025. That target hasn’t been fully achieved, but the management framework has dramatically slowed depletion rates. The Arizona Department of Water Resources (ADWR) enforces annual pumping limits and requires large water users to obtain withdrawal permits.
Key Aquifer Characteristics
Beneath the Phoenix metro, groundwater occurs in several stacked layers of sand, gravel, and clay within the Salt River Valley basin:
- Upper aquifer (0–300 feet): Fine-grained sediments, generally lower yield, more vulnerable to surface contamination. Most older domestic wells tap this zone.
- Middle aquifer (300–800 feet): Coarser-grained sediments with better yield and water quality. Primary zone for residential and small commercial wells.
- Deep aquifer (800–1,500+ feet): Highly consolidated sediments, often requiring special pump equipment. Used by municipal suppliers and large agricultural operations.
Typical residential well depths in Maricopa County range from 400 to 900 feet, with most production coming from the middle aquifer zone.
Water Quality in Maricopa County
- Hardness: Generally very hard, 350–550 mg/L as CaCO₃ across most of the county. Water softeners are nearly universal in well-served homes.
- Arsenic: Naturally occurring arsenic exceeds the 10 µg/L EPA MCL in parts of the western county (Buckeye area) and some locations in the Agua Fria sub-basin. Test every new well.
- PFAS: Contamination plumes originating from Luke Air Force Base have been documented in the Goodyear/Litchfield Park area. ADEQ maintains an active monitoring program.
- TDS: Typically 500–1,500 mg/L; reverse osmosis systems are common for drinking water.
- Nitrates: Some elevated readings in agricultural areas in the western and southern portions of the county.
Cities and Communities with Listings
- Phoenix — 10 businesses including drilling, pump service, and water treatment
- Mesa — 3 businesses focused on well drilling
- Buckeye — 2 businesses for drilling and pump work
- Litchfield Park, Glendale, Queen Creek, Scottsdale — 1 listing each
All Contractors in Maricopa County
Well Drillers
- Yellow Jacket Drilling Services — Phoenix — (602) 453-3252 — yellowjacketdrilling.com
- Skytech Drilling — Phoenix — (623) 580-4984 — skytechdrilling.com
- Beeman Brothers Drilling Co — Phoenix — (623) 465-9355 — beemanbrothers.com
- Clean Water Group, Inc — Phoenix — (602) 560-4334
- Bloomquist Pump Service — Phoenix — (602) 252-1179
- National EWP — Phoenix — (480) 558-3500 — nationalewp.com
- AZCA Drilling — Phoenix — azcadrilling.com
- South Bound Drilling — Buckeye — (623) 693-4142 — southbounddrilling.com
- Superior Drilling — Litchfield Park — (602) 290-7332 — superiordrilling.net
- Arizona Preston Drilling LLC — Mesa — (480) 984-4747 — azprestondrilling.com
- Resilient Drilling Services, LLC — Mesa — (602) 218-8848 — resilientdrilling.com
- Weber Water Resources LLC — Mesa — (480) 961-1141 — weberwaterresources.com
- Integrity Drilling Services — Queen Creek — (480) 493-7767 — integritydrillingservice.com
Pump Contractors
- AZCA Drilling — Phoenix (also well drilling)
- Pump It Up Pump Service, Inc — Phoenix — (623) 582-5069 — pumpituppump.com
- KP Ventures Well Drilling & Pump — Glendale — (623) 230-4060 — kpventureswelldrilling.com
- Western Drilling DBA The Pump Company — Buckeye — (623) 327-1200 — westerndrillingco.com
Water Treatment
- Advanced Water Systems & Plumbing Services LLC — Phoenix — (602) 993-5771 — advwatersys.com
- Water Treatment Technologies — Phoenix — (602) 275-8280 — wttaz.com
Consultants
- Clear Creek Associates — Scottsdale — (480) 659-7131 — clearcreekassociates.com
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