Pond Management & Restoration Projects

Statewide Pond Management

In areas where there is not enough water for all uses, man-made ponds, even those that have existed for decades, must have a legal means of storing or exposing water to evaporation. Man-made ponds consume water that senior water rights are entitled to. 

The Division of Water Resources (DWR) is systematically reviewing ponds in several areas of Colorado where ponds without legal authorization have a substantial impact on the stream system.

Arkansas Basin Pond Management

The Division 2 Office initiated a Pond Management Project in 2021 to review ponds within the Arkansas River Basin to ensure compliance with legal water obligations to Colorado water rights and a downstream state.

In Colorado, the use of water is governed by what is known as the “Prior Appropriation System”, meaning that those with the most senior water rights have first use of the river. This system of water allocation works well in a dry, western state like Colorado where water supply is limited. This system of water laws manages who uses how much water, the types of uses allowed, and when those waters can be used.

  • Ponds, like any water source in Colorado, must be in compliance with Colorado water law. DWR has identified a number of ponds in the Arkansas Basin that divert and store water without a water right. Collectively, these ponds can significantly impact water rights and Colorado’s obligations to a downstream state.  
  • For every acre of pond surface area, up to 1 MILLION gallons of water is lost to evaporation each year.
  • The Arkansas River Basin is one of the most over-appropriated water basins in the state and has experienced frequent and severe drought conditions, (we use more water than is naturally supplied).  To help meet both our current and future water needs, we need to look at all water uses, like ponds.

Pond Inspection Process

In the first phase of the Pond Management Project, brochures were mailed to pond owners in January of 2021. The brochure contained the local Water Commissioner's contact information for the pond owner to arrange an inspection.  During the inspection, water commissioners go over options and connect pond owners with organizations like local water conservancy districts that work with landowners on pond and water supply issues

For additional details on the Pond Management Project, including options available for obtaining replacement water for your pond, see the Arkansas Basin Pond Management Folder in the Informational Guides and Brochures Section below.  This folder contains frequently asked questions (FAQ’s), a pond management brochure, and augmentation plan contacts.  


Important Links

Designated Basins Pond Management

Designated Ground Water Basins

The specific laws related to ponds are slightly different in areas of eastern Colorado mapped as Designated Ground Water Basins.  However, the same general principle that a permit and replacement plan (similar to a plan for augmentation, but within a Designated Ground Water Basin) are required for exposed ground water in an over-appropriated system apply.  In addition, pursuant to an opinion issued by the Colorado Supreme Court in November of 2015, water flowing on the surface of the ground (i.e. precipitation runoff) within a Designated Ground Water Basin that contributes to the recharge of the aquifer is designated ground water. Therefore, dams impounding precipitation runoff on the surface of the ground, and excavated ponds, are both administered by the Colorado Ground Water Commission as structures that divert designated ground water.

Upper Black Squirrel Creek Designated Ground Water Basin, El Paso County

Due to concerns about injury to senior water rights raised by the Upper Black Squirrel Creek Ground Water Management District, in 2018 staff of the Colorado Ground Water Commission began a systematic investigation of unpermitted ponds throughout the Upper Black Squirrel Creek Designated Ground Water Basin, which is generally in the vicinity of Ellicott and Peyton.  The investigation reviews all surface water features, including both excavations that expose ground water and ponds that impound precipitation runoff. Staff will coordinate its investigation with the Upper Black Squirrel Creek Ground Water Management District.

The investigation, which is expected to continue for 5 years involves the following steps as the staff investigates the area in a pattern roughly from north to south within the District:

  • Review historical aerial photos to identify ponds, including identifying those that are obviously natural surface water features. 
  • Perform field inspections, as needed, at any time in the process. 
  • Review Ground Water Commission and State Engineer records to determine which ponds do not have valid permits, decreed water rights, or other registrations (Target Ponds). 
  • Mail notices to landowners with Target Ponds to inform them of apparent violations, to allow them an opportunity to show the pond is legal or how it will be made legal (e.g. by obtaining a replacement plan and well permit), or how any water in the pond will be eliminated (e.g. by breaching dams and/or backfilling ponds). 
  • If owners of Target Ponds do not respond to the letters or adequately pursue a remedy, owners may be subject to orders from the Ground Water Commission and further enforcement action with the court.

For frequently asked questions (FAQ's), see the Designated Basins Pond Management Folder in the Informational Guides and Brochures Section below.  

Restoration Projects

Those doing restoration work in the stream should be mindful to comply with Colorado law, not injure water rights or interstate compact obligations, and not impact the function of existing decreed diversions and flow measurement structures. 

There is no statutory requirement for project proponents to obtain input from DWR prior to commencing such a project. Nevertheless, DWR staff receives requests for input on a variety of proposed projects including stream and wetland mitigation, enhancement, improvement, stabilization, and restoration. If a project proponent requests input, our staff will review the project and consider, based on the range of conditions in the vicinity of the project site, whether certain project elements will result in injury to vested water rights.  

The response will describe if the project will require the Division Engineer to issue an order, particularly one of the following types: 

(1) discontinue a diversion that is causing material injury 

(2) release any water that has been illegally or improperly stored

(3) clear streams of unnecessary dams and obstructions that restrict or impede the flow of water 

(refer to sections 37-92-501 and 502, Colorado Revised Statutes, for information about DWR’s authority to administer water and issue orders).

Further, DWR staff will note that any project element exposing groundwater should not be constructed without first obtaining a well permit from DWR.


If DWR provides comments about a proposed project, the comments are provided for information purposes only. The comments should not be considered official approval or denial of a project because DWR does not have permitting authority over such projects. If a restoration project will result in material injury to water rights, in most cases approval of the project operation should be obtained from the water court, most likely in the form of an augmentation plan that prevents injury. Temporary written approval may be obtained through an application for a Substitute Water Supply Plan. Water attorneys and engineers can provide assistance in obtaining these approvals.


Project elements that are unlikely to trigger DWR’s statutory administrative authority include the following:

  • Grading along the stream channel that does not result in out-of-priority diversions or grading at any location that does not expose groundwater or collect/concentrate stormwater
  • Vegetation management (such as planting or removal), including a legal water supply necessary to irrigate new plants for establishment
  • Fencing out animals/management of grazing activities
  • Those that meet the definition of a minor stream restoration activity in section 37-92-602(9)(b)(I), C.R.S. (as a result of Senate Bill 23-270)


Any activity or project that is causing material injury to vested water rights is subject to enforcement by the State and Division Engineers, including orders to cease and desist the activities that are causing injury.


Important Links


Applications & Tools