Plans, Regulations and Manuals

Protecting resources through environmentally sound development
The Town is committed to protecting water resources and ensuring future development continues in an environmentally sound manner.

The Town has two permitting programs for erosion and sediment control on public and private construction projects within Town limits. The Drainage, Erosion and Sediment Control program covers residential construction on individual lots. The Grading, Erosion and Sediment Control program covers all other development and construction projects. 

This GESC and DESC Manual (commonly known as the GESC Manual) describes the permitting programs that have been adopted to promote environmentally sound construction practices in Town. The goal of the program is to implement erosion and sediment control best management practices as a standard for all land-disturbance activities. The hope is to reduce increases in erosion and sedimentation over predevelopment conditions. Erosion caused by construction and downstream sedimentation can damage property and degrade the quality of streams and lakes.

Landscape regulations and principles 
The new Landscaping and Irrigation Performance Standards and Criteria Manual (Landscape Manual) outlines the policies, procedures, performance standards and minimum criteria. The criteria provide comprehensive water-efficient design, installation and maintenance standards in a manner that balances quality of life with the overall responsibilities of the Town as a water provider. The manual demonstrates the Town’s commitment to the wise use of water resources. It enhances regional characteristics; promotes environmental sustainability; and ensures land use compatibility in a practical, consistent and efficient administrative environment.

Storm Drainage Design and Technical Criteria Manual
The Stormwater Drainage Design and Technical Criteria Manual was adopted in 2007. The manual presents the policies and minimum technical criteria for the planning, analysis and design of storm drainage systems within Town boundaries. The manual was developed in cooperation with Douglas County and urban drainage to improve consistency between neighboring jurisdictions.

Stormwater Master Plan
The Stormwater Master Plan was adopted in 2004 and updated in 2010. The plan commits the Town to a long-term program to ensure that drainage and other systems control stormwater runoff, protect the public during major storms, protect property values, safeguard Town streams from the high level of pollutants carried by urban runoff, and balance storm drainage planning approaches to complement open space and recreation corridors.

The plan outlines stormwater and floodplain problem areas and recommends time frames and priorities for specific drainageway improvement projects through 2020. The prioritization and ranking of these capital improvement projects were based on an evaluation that included criteria such as property protection, public safety, flood risk and water quality enhancement.

Water Efficiency Master Plan
The Water Efficiency Master Plan approved by Town Council on July 21, 2015 outlines a goal-oriented, performance-based and cost-effective strategy that provides a practical approach to design and implementation, while providing measurable water savings. This plan outlines current and future water-use profiles, establishes conservation goals, identifies conservation measures, reflects the costs and benefits of conservation, defines regulations and incentives, outlines water budget rate structure and educational program, and establishes evaluation processes.

Water Facilities Master Plan
The Water Master Facilities Plan was adopted in 2006 and updated in 2010. The plan examines the existing water system infrastructure. It identifies water treatment and distribution capital improvement projects required to provide service to existing and future development through build-out of the Town’s service area boundary. Specifically, the plan examines the following components of the water supply system:

  • Existing water treatment and distribution system
  • Potable water demands and finished water capacity
  • Water treatment for meeting existing and future demands
  • Water distribution system modeling for both existing and future conditions
  • Recommended capital improvements for maintaining a safe reliable drinking water system

The Water Master Plan is not available electronically. View a copy at the Utilities Department.

Water Resources Strategic Master Plan
The Water Resources Strategic Master Plan was adopted in 2006 and updated in 2010.  This plan addresses the future water needs for the Town to achieve a sustainable long-term water supply. The plan charts the path and identifies strategies for the Town to move toward a sustainable water future.

Currently, 100 percent of the Town’s water demands are met by deep aquifer groundwater. Over the past several years, water providers, community leaders and the public have noted declining water levels throughout the region, including in Castle Rock. With or without growth, that existing groundwater supply is a non-renewing resource that is not sustainable for the Town’s long-term future.

Water Use Management Plan
The Water Use Management Plan is designed as a demand-management tool to allow adequate volumes and pressures to the water distribution system during landscape irrigation season. This program is also intended to encourage wise use of a finite resource.

Criteria Manuals
The Water System Design Criteria Manual and the Wastewater Collection Design Criteria Manual contain the polices and minimum technical criteria for the planning, analysis and design of potable water and wastewater-collection systems in the Town, as well as areas served by the Town. The manuals outline requirements for utility reports and plans, analyses and designs. The primary goal of the new manuals is to bring criteria up to current construction and design standards. The most significant change to the criteria is aligning the manuals with the new development procedures, which moves detail to the back end of the process.

Wastewater Master Plan
The Wastewater Master Plan was adopted in 2004 and updated in 2010. The plan examines the existing wastewater system infrastructure. It identifies collection system capital improvement projects required to provide service to existing and future development through build-out of the Town’s service area boundary. The goals of the plan are to:

  • Identify capital improvement projects that will provide adequate sanitary sewer service to the Town
  • Establish capital improvement project costs
  • Develop a capital improvement financial plan for the identified capital improvement projects

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