Well Permits and Pump Replacement Rules in Larimer County, CO

Introduction

Owning a rural property in Larimer County often means managing your own private water supply. Unlike municipal tap water, private wells fall under Colorado state water law and local health regulations. Navigating well permits and pump replacements can feel confusing for property owners. At Star Plumbing Co. LLC, our licensed pump technicians help homeowners stay fully compliant across Fort Collins, Loveland, Wellington, and Laporte.

When a Well Permit Is Required

In Colorado, groundwater is a public resource governed by the Division of Water Resources (DWR), also known as the State Engineer's Office. You always need a state permit before drilling a new domestic well. Larimer County building departments also check permit status before approving new residential construction. A valid well permit dictates how much water you can pump and where you can use it.

Situations that always require a state permit:

• Drilling any new domestic, commercial, or agricultural water well
• Deepening an existing well casing or re-drilling a collapsed borehole
• Replacing a well casing after severe structural failure
• Changing the permitted use from household-only to livestock or landscape irrigation

Minor surface plumbing maintenance does not require a new drilling permit. However, any modification altering well capacity or casing depth requires state notification. If you are troubleshooting an inactive system, consult our guide on what to check first when a well pump is not working.

Pump Replacement vs. New Well

Homeowners frequently ask if replacing a broken pump requires an entirely new permit. In most residential cases, replacing an existing well pump like-for-like does not require a new drilling permit. As long as the well casing, aquifer source, and pumping rates remain unchanged, it counts as an equipment replacement.

However, installing a higher horsepower pump that exceeds your permitted pumping rate does require a permit amendment. Colorado domestic permits often restrict pumping capacity to 15 gallons per minute (GPM). Exceeding this limit without state approval violates Colorado water law. If your well casing collapses or runs dry, you must apply for a replacement well permit before drilling begins.

Who Is Licensed to Do the Work in Colorado

Colorado enforces strict licensing laws regarding who can legally work on water wells. Under Colorado Revised Statutes Title 37, pump installation and repair must be performed by a state-licensed pump installation contractor or licensed master plumber.

Property owners cannot legally pull and replace deep submersible well pumps on their own. Pulling hundred-foot drop pipes requires specialized boom trucks and electrical torque arrestors. Unlicensed work risks dropping drop pipe strings into the casing, which can ruin the well entirely. Star Plumbing Co. maintains all state licenses and certifications required to install, wire, and test deep well pumps across Larimer County.

Depth, Yield, and Drawdown Reporting

Larimer County covers diverse geological zones ranging from the eastern plains to the Rocky Mountain foothills. Well depths vary dramatically across our service territory. Shallow alluvial wells near Wellington might run 60 to 120 feet deep. In contrast, foothill properties in Laporte often reach 300 to 700 feet into fractured granite.

Whenever a pump is replaced or a well is serviced, technicians record specific performance metrics. These metrics confirm aquifer health and protect equipment longevity:

• Static water level: The resting depth of the water table before pumping starts.
• Pumping water level: The stabilized water depth while the pump operates at full capacity.
• Well drawdown: The vertical distance between the static level and the pumping water level.
• Sustained yield: The continuous flow rate measured in gallons per minute.

These numbers dictate the exact depth setting for your new submersible pump. Setting a pump too deep causes sediment ingestion, while setting it too shallow leads to dry running.

Costs and Timelines

Understanding project expenses helps homeowners plan necessary water system upgrades. Permit fees and turnaround times depend directly on the specific scope of work.

• New domestic well permits from the Colorado DWR cost approximately $100 to $200 in state filing fees.
• Replacement well applications typically require two to four weeks for administrative state review.
• Emergency replacement permits can sometimes receive expedited processing if a home has completely lost domestic water.
• Like-for-like pump replacements require zero state filing wait times and can be completed immediately by our crew.

Equipment replacement costs vary based on well depth, horsepower, and pipe material. Star Plumbing Co. provides transparent, upfront estimates before beginning any diagnostic or replacement work.

What We Handle for You

Dealing with water shortages is stressful enough without deciphering state water decrees. Star Plumbing Co. LLC delivers turn-key well pump services across Larimer County.

Our complete service protocol includes:

• Retrieving your original Colorado well construction and pump installation logs from DWR archives.
• Down-hole video camera inspection to evaluate casing integrity, perforations, and silt buildup.
• Precision pump sizing matching your specific well depth and permitted gallons per minute.
• Electrical testing of pressure switches, control boxes, and lightning surge arrestors.
• Safe drop pipe pulling and sanitary well cap sealing.
• Comprehensive water flow and continuous yield testing after installation.

We also verify sanitary setbacks from onsite wastewater systems, coordinating closely with our Larimer County septic permit guidance to keep your drinking water safe.

Frequently Asked Questions