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How to Ensure Safety and
Efficiency in Stormwater
Sampling
Key tools to better manage your next
stormwater sampling project
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Meet Your Moderator
James
Ciccone
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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.
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Meet Your Presenter
Darrell
Interess
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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?
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Poll Question
How Often Do You
Review/Update
Your SWPPP and
Sampling Plan?
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AgendaIntroduction: Why Sample Stormwater?
Sampling Project Preparation & Planning
Sampling Techniques & Equipment
Sample Management & Results
Summary/Q&A
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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
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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
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Introduction: Why Sample Stormwater?
Sampling Project Preparation & Planning
Sampling Techniques & Equipment
Sample Management & Results
Summary/Q&A
Agenda
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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
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What Type of
Monitoring?
Visual Assessments
Indicator/Benchmark
Compliance
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Site Preparations
• Where to collect samples?
• Drainage structures
• Cover soil areas
• All discharge locations on site map
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Select a
Laboratory
• DMR-QA program
• NELAP approved
• Communicate
• Additional services
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Example Chain of Custody
• What does “custody” mean?
• COC essentials
• Signatures!
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Lab Requirements
• Bottle orders
• Rush requests
• Transporting samples
• Chains of custody & labels
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Potential Issues
to Consider
• Run-on
• Adverse conditions
• Sampling in time
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Qualifying
Storm Events
• Must create discharge
• 72 hours elapsed
• Exception to 72-hours
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Safety
ConsiderationsReview Sampling SOP
Complete Pre-Task Assessment
Determine appropriate PPE
Address site hazards
Handle adverse conditions
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Final Preparations
Before Sampling
• Monitor weather
• Assemble and check gear
• Notify/mobilize monitoring team
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Introduction: Why Sample Stormwater?
Sampling Project Preparation & Planning
Sampling Techniques & Equipment
Sample Management & Results
Summary/Q&A
Agenda
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Sampling Equipment
• pH meter
• PPE (gloves, glasses,
sleeves, shield)
• Field test kits
• Notebook – take good
notes!
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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
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Sampling Practices
Containers & Preservatives
Ice Ice Baby
Avoid Contamination
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Sample Quality Assurance
• Holding Times
• Sample Preservatives
• Trip Blanks
• Field Blanks
• Equipment Blanks
• Chains of Custody and Procedures
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Field Notes and
Observations
• Document observations in
SWPPP
• Rainfall total, stormwater flow
• Stormwater volume sampled
• Unusual conditions
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Introduction: Why Sample Stormwater?
Sampling Project Preparation & Planning
Sampling Techniques & Equipment
Sample Management & Results
Summary/Q&A
Agenda
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Sample Management• Preservation
• Ice and in a cooler
• Chemically-preserved containers
• Copy of COC
• Transport/ship to laboratory
• Temporary storage on-site
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Analytical Results:
Now What?
• Review analytical reports
• Note and discuss
• Reporting within 30 days
• EPA NetDMR or similar
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Introduction: Why Sample Stormwater?
Sampling Project Preparation & Planning
Sampling Techniques & Equipment
Sample Management & Results
Summary/Q&A
Agenda
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SummaryUnderstand requirements
Plan and prepare
Maintain sample integrity
Review data and meet deadlines
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Upcoming Webinar
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QUESTIONS?
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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!