What are the opening hours?

Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm Saturday 8am - 5pm Sunday 8am - 5pm

Tri-County Pump & Well Service

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United States
Mariposa, CA
Tri-County Pump & Well Service

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Tri-County Pump & Well Service is a local, family owned and operated business based out of Mariposa, California. We offer a superior service at a lower cost.
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We will beat any comparable quote!

10/28/2026

We’re so blessed to have Brandon as one of the owners of Tri County!

He plays a big part in making Tri County what it is today, and we’re grateful for all the hard work he puts in behind the scenes and beyond. Stay tuned because we’ll be sharing more about our crew and the amazing people behind Tri County!

10/20/2026

Meet the Team: Beau Greninger!

Meet Beau, one of the owners of Tri County! With over 22 years of experience, Beau is passionate about serving our community and taking care of our customers.

When he’s not at work, you’ll find him spending time with his wife and two kids and staying involved in the local community.

10/14/2026

A weekend well spent in Arizona!

Brandon and Austin headed to Arizona this past weekend to watch the Arizona Cardinals take on the Detroit Lions! A huge thank you to Western Hydro for bringing them along and showing their appreciation for all of Tri-County’s contributions. We appreciate the partnership and the opportunity to work with such a great team!

Good football, great company, and memories made!

10/09/2026

Happy Friday from Tri-County Pump & Well!

Just a little reminder of some of the services we offer to help keep your water systems running smoothly!

💧 Well inspections
💧 Water filtration systems
💧 Water storage tanks
💧 UV lights
💧 Pump systems
☀️ Solar
🛠️ Trenching

And that’s just some of what we do! We’re here to help with your well and water needs, providing reliable and affordable service to our community.

Good luck to our Grizzlies football team at their home game tonight! Let’s go, Grizzlies! 🐻

Wishing everyone a happy, safe, and blessed weekend!

10/01/2026

Another one in the books! This water storage tank and booster pump system was installed with a fire department hookup, another project that takes a little planning, the right equipment, and a whole lot of work behind the scenes.

It’s always satisfying seeing a project come together from start to finish.

Need a project like this? Give us a call! We provide affordable and reliable service you can count on.
📞 209-742-PUMP (7867)

09/17/2026

Just a little appreciation post for the people who keep us going! We’re so thankful for every customer who has trusted Tri-County Pump & Well over the years. Whether you’ve called us once or you’ve been with us for years, we appreciate you more than you know!

If you’ve had a good experience with us, tell us about it in the comments! We love hearing from our customers!

As always, we’re here for affordable and reliable service when you need us.

09/11/2026

Today, we honor the nearly 3,000 lives lost, the families and communities forever changed, and the brave first responders, firefighters, police officers, military members, and everyday Americans who showed incredible courage and selflessness.

May we continue to remember their lives, honor their sacrifices, and never forget the strength and unity our country showed during such a difficult time.

We remember. We honor. We will never forget. 🇺🇸❤️🤍💙

09/10/2026

Another successful project in the books!

We installed a whole-house reverse osmosis system, UV filter, and calcite filter to help provide cleaner, purer water throughout the home. From better-tasting drinking water to added peace of mind, we love helping our customers get the water quality they deserve.

Another happy customer, another job done right! And as always, Tri-County Pump & Well is here for affordable and reliable service you can count on.

📞 209-742-PUMP (7867)

09/06/2026

Fair weekend is one of our favorite times of the year! We’re so proud of the Tri-County family’s kids and all the hard work they’ve put into their 4-H projects. 🐖🐇

Join us in congratulating all the kids on their hard work and dedication! We hope everyone is having a fun, safe fair! If you haven’t already, make sure to stop by and support our local kids at the auction happening now.

Enjoy the rest of the fair, stay safe, and keep supporting our amazing community!

Tri-County Pump & Well
Affordable & reliable service, always.

09/03/2026

Not all the work happens out in the field.

Sometimes it looks like sitting down with the plans, working through the details, and making sure everything behind the scenes is running smoothly.

At Tri-County Pump & Well, there’s a lot more that goes into keeping things moving than what you see on the job site. From the office to the field, we’re working hard to provide affordable, reliable service you can count on.

Because when it comes to your well, we believe good work starts with a good plan.

Address

3241 Triangle Park Road
Mariposa, CA
95338

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm
Saturday	8am - 5pm
Sunday	8am - 5pm

Telephone

+12097427867

Website

http://www.tricountywellservice.com/

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