How to Ensure Safety and

Efficiency in Stormwater

Sampling

Key tools to better manage your next

stormwater sampling project

Meet Your Moderator

James

Ciccone

During this Webinar All lines will be muted.

Communicate via the questions tab in your webinar

panel.

Unanswered questions will be responded to after

the webinar.

Webinar recording and slides will be emailed to you

tomorrow.

Meet Your Presenter

Darrell

Interess

What You

Can Expect • Project managers and field staff

• Plan, manage, and execute sampling

• Key tools for a successful project

• How do I determine the requirements?

Poll Question

How Often Do You

Review/Update

Your SWPPP and

Sampling Plan?

AgendaIntroduction: Why Sample Stormwater?

Sampling Project Preparation & Planning

Sampling Techniques & Equipment

Sample Management & Results

Summary/Q&A

Why Sample Stormwater

in the First Place?

EPA (MSGP) says you have to!NPDES & MSGP history (1990 to 2015)

• 40 CFR 122.26(b)(14)(i)-(ix) identifies

covered industrial categories

• By SIC code or general description

General Industry

Descriptions• Facilities subject to New Source

Performance Standards

• Heavy manufacturing

• Mining, oil and gas

• Hazardous waste facilities

• Landfills

• Recycling facilities

• Steam electric power plants

• Transportation industries

• Sewage treatment facilities

• Light industry

Introduction: Why Sample Stormwater?

Sampling Project Preparation & Planning

Sampling Techniques & Equipment

Sample Management & Results

Summary/Q&A

Agenda

The Basics• 2015 MSGP Notice of Intent (including if

previously covered by the 2008 MSGP)

• Review Stormwater Pollution Prevention Plan

(SWPPP)

• Update

• Confirm monitoring (sampling) requirements

• Communicate

What Type of

Monitoring?

Visual Assessments

Indicator/Benchmark

Compliance

Site Preparations

• Where to collect samples?

• Drainage structures

• Cover soil areas

• All discharge locations on site map

Select a

Laboratory

• DMR-QA program

• NELAP approved

• Communicate

• Additional services

Example Chain of Custody

• What does “custody” mean?

• COC essentials

• Signatures!

Lab Requirements

• Bottle orders

• Rush requests

• Transporting samples

• Chains of custody & labels

Potential Issues

to Consider

• Run-on

• Adverse conditions

• Sampling in time

Qualifying

Storm Events

• Must create discharge

• 72 hours elapsed

• Exception to 72-hours

Safety

ConsiderationsReview Sampling SOP

Complete Pre-Task Assessment

Determine appropriate PPE

Address site hazards

Handle adverse conditions

Final Preparations

Before Sampling

• Monitor weather

• Assemble and check gear

• Notify/mobilize monitoring team

Introduction: Why Sample Stormwater?

Sampling Project Preparation & Planning

Sampling Techniques & Equipment

Sample Management & Results

Summary/Q&A

Agenda

Sampling Equipment

• pH meter

• PPE (gloves, glasses,

sleeves, shield)

• Field test kits

• Notebook – take good

notes!

Sampling Techniques

Grab Sample

• Discrete sample

• Duration 15 minutes or less

Composite Sample

• Collected continuously or in aliquots During discharge up to 24 hours

Sample Representativeness

Sampling Practices

Containers & Preservatives

Ice Ice Baby

Avoid Contamination

Sample Quality Assurance

• Holding Times

• Sample Preservatives

• Trip Blanks

• Field Blanks

• Equipment Blanks

• Chains of Custody and Procedures

Field Notes and

Observations

• Document observations in

SWPPP

• Rainfall total, stormwater flow

• Stormwater volume sampled

• Unusual conditions

Introduction: Why Sample Stormwater?

Sampling Project Preparation & Planning

Sampling Techniques & Equipment

Sample Management & Results

Summary/Q&A

Agenda

Sample Management• Preservation

• Ice and in a cooler

• Chemically-preserved containers

• Copy of COC

• Transport/ship to laboratory

• Temporary storage on-site

Analytical Results:

Now What?

• Review analytical reports

• Note and discuss

• Reporting within 30 days

• EPA NetDMR or similar

Introduction: Why Sample Stormwater?

Sampling Project Preparation & Planning

Sampling Techniques & Equipment

Sample Management & Results

Summary/Q&A

Agenda

SummaryUnderstand requirements

Plan and prepare

Maintain sample integrity

Review data and meet deadlines

Upcoming Webinar

QUESTIONS?

You Will Receive:

• A recording of this presentation

and a copy of this presentation

• A link to a short survey

• An offer to help you get started

with your next sampling project

Thank You For Attending!