Webinar instructions will be emailed before the date of the webinar.

Please log into the webinar 15 – 30 minutes before start time.

Log into Webinar
8:00 – 8:30 am MDT
Morning Session
8:30 am – 12:00 pm MDT
12:00 – 1:00 pm MDT
Afternoon Session
1:00 – 4:00 pm MDT


Presented by
Deborah A. Fisher, P.E., CFM, CPESC

Introduction to Understanding and Applying the Science of Stormwater in Colorado
Classifying storm events
Soil science
Identifying consequences of storm events
Stormwater modeling

Common Issues of Urban Storms
Infill development Nuisance flows
The devil in the details

Stormwater Objectives
Complying with stormwater regulations in Colorado
Site assessment
Mile High Flood District MHFD (formerly Urban Drainage and Flood Control District UDFCD)
Preparing stormwater pollution prevention plans (goals)
Design goals:
• Federal
• State
• Municipal

Stormwater Storage
Detention basins
Infiltration and volume reduction
Design considerations
Outlet design
Parts of a detention pond
Sediment handling
MHFD UD detention speadsheet
Soils considerations

Foundation Drainage
Surface water vs groundwater
Types of pipes
How does water move through soil
Sump pumps
“French drains”
Perimeter drains vs underdrains

Lessons Learned – Not Necessarily in Criteria Manuals
Depth of storm seers
Slope stability and culverts
Order of construction
Water quality problems
Drainage in limited space
Obscure things to know

Sustainable Best Practices in Stormwater Detention
Naturalizing detention basins
Small detention areas vs large detention areas
Rain gardens
Retrofitting existing systems

Storm sewer systems
Subdrainage systems
Water quality features


Webinar Instructions

All attendees must log-on through their own email – attendees may not watch together if they wish to earn continuing education credit. HalfMoon Education Inc. must be able to prove attendance if either the attendee or HalfMoon Education Inc. is audited.

Certificates of completion can be downloaded in PDF form upon passing a short quiz. A link to the quiz will be sent to each qualifying attendee immediately after the webinar. The certificate can be downloaded from the Results page of the quiz upon scoring 80% or higher.

Webinars are presented via GoToWebinar, an easy-to-use application that can be run on most systems and tablets. Instructions and login information will be provided in an email sent close to the date of the webinar. It is highly recommended that you download, install and test the application before the webinar begins by clicking on the link in the email.

GoToWebinar App requirements:
Windows 7 – 10 or Mac OSX Mavericks (10.9) – macOS Catalina (10.15)

Web Browser:
The two most recent version of the following browsers:
Google Chrome, Mozilla Firefox, Apple Safari, Microsoft Edge
Internet Explorer v11 (or later) with Flash enabled

Internet connection: Minimum of 1Mbps       Hardware: 2GB RAM or more

For more information, visit the Support section at


Professional Engineers
Non-Credit Continuing Education (6.0 PDHs)

6.0 HSW CE Hours

Landscape Architects
6.0 HSW CE Hours

Floodplain Managers

International Code Council
.6 CEUs (Sitework)

Certified Planners


Continuing Education Credit Information
This webinar is open to the public and is intended to offer 6.0 HSW continuing education hours to licensed architects, 6.0 HSW continuing education hours to landscape architects, and a non-credit learning opportunity to engineers licensed in Colorado. Professionals licensed in other states will be able to claim the hours earned at this webinar, in most cases. Refer to specific state rules to determine eligibility.

HalfMoon Education is an approved continuing education sponsor for engineers in Florida (Provider No. 0004647), Indiana (License No. CE21700059), Maryland, New Jersey (Approval No. 24GP00000700) and North Carolina (S-0130). HalfMoon Education is deemed an approved continuing education sponsor for New York engineers and architects via its registration with the American Institute of Architects Continuing Education System (Regulations of the Commissioner §68.14(i)(2) and §69.6(i)(2)). Other states do not preapprove continuing education providers or courses.

The American Institute of Architects Continuing Education System has approved this course for 6.0 LU|HSW (Sponsor No. J885). Only full participation is reportable to the AIA/CES.

The Landscape Architecture Continuing Education System has approved this course for 6.0 HSW PDHs. Only full participation is reportable to the LA CES.

This webinar has been approved by the Association of State Floodplain Managers for 6.0 CECs for floodplain managers.

The International Code Council has approved HalfMoon Education as a Preferred Provider of continuing education (No. 1232). Course approval is pending in the specialty area of Sitework.

HalfMoon Education is an approved CM Provider with the American Planning Association. This course is registered for CM | 6 for Certified Planners.

Visit this course listing at for updates on pending credits.

Completion certificates will be awarded to participants who complete this event and earn a passing score (80%) on the quiz that follows the presentation (multiple attempts allowed).


Deborah A. Fisher P.E. CFM. CPESC

Owner, Senior Water Resources Engineer at Water Engineering Solutions LLC
Ms. Fisher has over 30 years of experience in hydrology and hydraulics, having designed hundreds of drainage and water quality treatment facilities all along the front range of Colorado. She has also authored hundreds of drainage studies and is well versed in low impact development, groundwater investigation, and emergency flood mitigation. She was the continuing education director for Martin/Martin for over ten years, and she conducted several hundred classes for the civil department. Ms. Fisher’s current passion is helping people and solving water problems, particularly related to floodplains, and understanding water migration and control, both on the surface and underground. She has evaluated hundreds of sites and performed water issue evaluations of floodplains and for conditions such as standing water, wet basements, excessive sump pump discharges, and multiple other drainage issues.

AIA Info

AIA Provider Statement:

HalfMoon Education Inc. is a registered provider of AIA-approved continuing education under Provider Number J885. All registered AIA/CES Providers must comply with the AIA Standards for Continuing Education Programs. Any questions or concerns about this provider of learning program may be sent to AIA/CES ( or (800) AIA 3837, Option 3).

This learning program is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.

AIA continuing education credit has been reviewed and approved by AIA/CES. Learners must complete the entire learning program to receive continuing education credit. AIA continuing education Learning Units earned upon completion of this course will be reported to AIA/CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.

Course Title: Colorado Urban Stormwater Management

Delivery Method: Live Online

Course Description: This six-hour course for design professionals provides a holistic view of urban stormwater management, including the science, objectives and techniques, but also focuses sharply on the design, operation and maintenance of systems such as detention basins, sump pumps, and rain gardens and the techniques that design professionals utilize to increase drainage in the landscape and in building foundations.

Learning Objectives:

Learning Objective 1:
Learners will be able to understand and apply the science of stormwater, including hydrology, soil science, drainage, modeling, and classifying storm events.

Learning Objective 2:
Learners will be able to design detention basins for stormwater storage with appropriate infiltration, vegetation, and outlet design while considering soils and sediment.

Learning Objective 3:
Learners will be able to maximize foundation drainage through various designs such as French drains, perimeter drains, underdrains, and sump pumps, as well as an understanding of how water moves through soil.

Learning Objective 4:
Learners will be able to consider the lessons of the past in order to prepare for the future- these include issues that are not necessarily in criteria manuals, such as water quality problems (fertilizers, debris, E-coli) and other issues.

Learning Objective 5:
Learners will be able to engage in sustainable stormwater management design through the use of rain gardens and the retrofitting of existing systems.

Learning Objective 6:
Learners will be able to properly maintain stormwater management systems, including storm sewers, subdrainage systems, and detention basins.

LUs: 6.0                                                                                              LU Type: LU|HSWs.

Prerequisites: Familiarity with stormwater issues

Advance Preparation: None

Program Level: Intermediate

Course Expiration Date: 06/13/2025

Complaint Resolution Policy:

Complaints regarding this course can be emailed to or by calling (715) 835-5900. A HalfMoon Education representative will respond within 72 hours to resolve the complaint, which will include, but not limited to, access to another CE activity at no or reduced cost or a full or partial refund. Each instance will be resolved on a case-by-case situation.