Guidance Document

A Strategic Approach to Planning for and Assessing the Effectiveness of Stormwater Programs

The Municipal Stormwater Program Effectiveness Assessment Guidance document is an evolving document. As municipalities complete annual program assessments, additional data will become available that will assist in verifying links between program-wide best management practices implementation, pollutant load reduction, and eventual receiving water quality improvements.

Complete Guidance Document (Jun 2015)

Cover | Table of Contents | Acknowledgements | Executive Summary

Section 1: Introduction and Purpose

1.1 Background

1.2 Purpose

1.3 Organization

 

Section 2: Stormwater Management Approach

2.1 Background

2.2 Primary Components

2.3 Introduction to Outcomes

Source and Impact Component

Outcome Level 6: Receiving Water Conditions

Outcome Level 5: MS4 Contributions

Outcome Level 4: Source Conditions

Target Audience Component

Outcome Level 3: Target Audience Actions

Outcome Level 2: Barriers & Bridges to Action

Stormwater Management Program Component

Outcome Level 1: Stormwater Program Activities

 

Section 3: Introduction to Strategic Planning for Stormwater Management Programs

3.1 Background

3.2 Planning Preparation (Stage 1)

3.3 Strategic Planning (Stage 2)

Step A: Characterizing Problems

Task 1: Evaluating Existing Conditions

Task 2: Defining Problem Conditions

Task 3: Prioritizing Problem Conditions

Step B: Targeting Outcomes

Task 1: Identifying End‐State Targets

Task 2: Establishing Interim Targets

Task 3: Identifying Data Requirements

Step C: Documenting Knowledge and Data Gaps

3.4 Stormwater Strategic Plan Completion (Stage 3)

 

Section 4: Source and Impact Strategies

4.1 Background

4.2 Outcome Level 6: Receiving Water Conditions

Step 6‐A: Receiving Water Characterization

Task 1: Evaluating Receiving Water Conditions

Task 2: Defining Receiving Water Problems

Task 3: Prioritizing Receiving Water Problems

Step 6‐B: Targeted Receiving Water Changes

Task 1: Identifying End‐State Targets

Task 2: Establishing Interim Targets

Task 3: Identifying Data Requirements

Step 6‐C: Documenting Knowledge and Data Gaps

4.3 Outcome Level 5: MS4 Conditions

Step 5‐A: MS4 Characterization

Task 1: Evaluating MS4 Conditions

Task 2: Defining MS4 Problems

Task 3: Prioritizing MS4 Problems

Step 5‐B: Targeted Changes to Urban Runoff and MS4 Contributions

Task 1: Identifying End‐State MS4 Targets

Task 2: Establishing Interim MS4 Targets

Task 3: Identifying Data Requirements

Step 5‐C: Documenting Knowledge and Data Gaps

4.4 Outcome Level 4: Drainage Area and Source Contributions

Step 4‐A: Source Characterization

Task 1: Evaluating Drainage Area and Source Contributions

Task 2: Defining Problem Drainage Areas and Sources

Task 3: Prioritizing Drainage Area and Source Problems

Step 4‐B: Targeted Changes to Source Contributions

Task 1: Identifying End‐State Targets

Task 2: Establishing Interim Targets

Task 3: Identifying Data Requirements

Step 4‐C: Documenting Knowledge and Data Gaps

 

Section 5: Target Audience Strategies

5.1 Background  

5.2 Outcome Level 3: Target Audience Actions

Step 3‐A: Target Audience Characterization

Task 1: Evaluating Target Audiences

Task 2: Defining Behavioral Problems

Task 3: Prioritizing Behavioral Problems

Step 3‐B: Targeted Behavioral Changes

Task 1: Identifying End‐State Behavioral Targets

Task 2: Establishing Interim Behavioral Targets

Task 3: Identifying Data Requirements

Step 3‐C: Documenting Knowledge and Data Gaps

5.3 Outcome Level 2: Barriers and Bridges to Action

Step 2‐A: Characterization of Barriers and Bridges

Task 1: Identifying Influencing Factors

Task 2: Defining Barriers

Task 3: Prioritizing Barriers

Step 2‐B: Targeted Changes to Barriers and Bridges

Task 1: Identifying End‐State Targets for Change

Task 2: Establishing Interim Targets for Influencing Factors

Task 3: Identifying data requirements

Step 2‐C: Documenting Knowledge and Data Gaps

 

Section 6: Program Implementation Strategies

6.1 Background

6.2 Step 1‐A: Program Implementation Activities

6.3 Step 1‐B: Data Collection and Analysis Activities

6.4 Sustainability Considerations

6.5 Step 1‐C: Documenting Knowledge and Data Gaps

 

Section 7: Assessment Tools and Strategies

7.1 Background

7.2 Iterative and Adaptive Management

7.3 Assessment Objectives

7.3.1 Program Planning Evaluation and Refinement

7.3.2 Evaluation of Success

7.3.3 Evaluation and Resolution of Knowledge and Data Gaps

7.4 Data Collection

7.5 Data Analysis

7.6 Relationships Between Outcomes

 

Section 8: Interpretation and Use of Results

8.1 Background   

8.2 Program Modifications

8.3 Example Program Effectiveness Assessment Analyses

8.4 Source and Impact Component

8.5 Target Audience Component

8.6 Stormwater Management Program Component

 

Attachments

Attachment A: Glossary of Acronyms and Terms

Attachment B: Source Profiles

Attachment C: Pollutant Profile Sheets