International Stormwater BMP Database New Tools for a Long-Term Resource

May 2017

Jane Clary and Jonathan Jones, P.E.

Wright Water Engineers

Eric Strecker, P.E., and Marc Leisenring, P.E. Geosyntec Consultants

Harry Zhang, P.E., Ph.D.,

Water Environment & Reuse Foundation

1

Connection to this Conference: BMP Database is Tool for Overcoming GI Barriers

2

BMP Database is a growing repository of performance data for GI practices and sites.

Objectives for Today

ó What is the BMP Database?

ó How much Green Infrastructure data does it have?

ó How do I access these data sets?

ó Direction on Green Infrastructure O&M Costs and the new “CLASIC” project funded by EPA.

3

Overview of BMP Database

Clean Water Act Goals Fishable & Swimmable

Agricultural BMPs

Urban Stormwater BMPs (Source Controls,

Structural, GI/LID)

Stream Restoration

Urban Stormwater Runoff

Characterization (NSQD)

EWRI currently supports Urban Stormwater BMP Database.

4

www.bmpdatabase.org 5

What is the Urban Stormwater BMP Database? ó A collection of BMP performance studies

containing metadata on site conditions and design parameters and stormwater monitoring results (water quality, precip., flow)

ó Researchers, MS4s and others voluntarily submit data to a clearinghouse for screening and upload to the master database

ó Process: Enter data in standardized Excel spreadsheets, submit to Clearinghouse, upload to Access (downloadable database), web tools in SQL

ó Data and project findings are publically available through www.bmpdatabase.org

6

Coalition of Sponsors over 20 Years:

BMP Summary ó 17 general BMP categories

ó Most recent version posted: September 2016

ó Most recent categorical analysis: December 2014

ó ~70 studies added 2016

ó Over 200 Green Infrastructure BMP Studies

ó Over 100 manufactured devices

ó Transportation-related studies are a key focus area (FHWA)

Category2016 Count

Bioretention 59Composite 29Detention Basins (Dry) 53Green Roofs 17Grass Strip 45Grass Swales 44Infilt. Basin 2LID Sites 10Manufact. Devices 113Media Filters 41Maintenance 29Other 6Permeable Pavent 48Perc. Trench 13Retention Pond (Wet) 78Rain Harvesting 1Wetland Basin 39Wetland Channel 23Total BMPs 650Control Sites 30

Five Ways to Access Urban BMP Database Information

1. Overall Performance Summary Technical Papers

2. On-line Interactive Google Earth Map Interface

3. On-line “Retrieve Studies” Tool

4. On-line Dynamic Statistical Analysis Tool

5. Download Microsoft Access Database

Other Important Resources on www.bmpdatabase.org: • Stormwater BMP

Monitoring Guidance • Data Entry

Spreadsheets and User’s Guide

1. Performance Summary Statistics (biennial updates)

How well do various BMP work? Example Summary Statistics for TSS (mg/L)

Influent-Effluent Boxplots for TSS

Volume Reduction Analysis—Important for LID/GI Practices

12

2. BMP Mapping Tool Study Retrieval

Example Individual BMP Summary

Graphical Plots in Multiple Formats: Boxplots, Quantile Plots, Scatter Plot, Time Series Plots

3. Retrieve Studies Tool

Example Search Results: 12 Caltrans Media Filter Sites with TSS Data

Output for Individual Sites: Foothills Sand Filter Example

Output for Individual Sites: Foothills Sand Filter Example (Part 2)

4. Statistical Analysis Tool

ó Example: Retrieve TP data for detention basins in CO

ó Returns summary statistics and allows download of a CSV data file

ó Newest tool—still considered “beta”—will continue to refine

Example Priorities for 2017-2019 ó Expand GI O&M tracking and

cost reporting ó EWRI Committee ó CLASIC Project

ó Continued population of the database

ó Modernize and improve manufactured device reporting protocols and backfill design data

ó Continue to support DOTs/highway data sets

21

A Few Upcoming Events of Interest Related to O&M Costs EWRI Stormwater O&M Conference (Denver, Nov.7-8, 2017) WEFTEC half-day workshop (10/1/17; Sunday PM)

CLASIC related subjects Stormwater BMP database/stream restoration Framework for linking BMPs with receiving water impacts

ASCE-EWRI/WE&RF Collaboration on GI O&M Cost Study

ó Initiated by ASCE/EWRI (Municipal Water Infrastructure Council)

ó WE&RF and ASCE currently collaborate on BMP Database

ó WE&RF strong base for utilities / municipalities

ó Further collaboration on O&M cost research through CLASIC

22

In publication through EWRI

Conclusions ó Continued population of the BMP

Database with GI/LID studies can help to break down barriers to GI. We would like more Great Lakes area data.

ó Data sets show benefits of GI practices for a variety of practices.

ó Important to be aware of the role of volume reduction in reducing loads when reviewing concentration data.

ó Better O&M data will support refined whole life-cycle cost planning.

23

Questions

Jane Clary, WWE Project Manager/Team Coordinator clary@wrightwater.com

Marc Leisenring, P.E., Geosyntec Project Manager

mleisenring@geosyntec.com

24