Past and Emerging Environmental and Engineering Issues

Past and Emerging Environmental and Engineering Issues

Jonathan Jones, P.E. – Wright Water Engineers
Tom Hopper, P.E. – Crafton Tull
Derrys Falls
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Devils Fork
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Fern Gully
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Middle Fork of the White River
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River in Autumn
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West Fork of the White River
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Whitaker Creek
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Illinois River
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Illinois River
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2010 Drainage Manual
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Rogers WWTP
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Pinnacle Golf and Country Club
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NACA WWTP
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Crystal Bridges
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Crystal Bridges
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Stormwater Requirements for Phosphorus – 0.10 ppm
Wastewater Treatment Plant Requirements for Phosphorus – 0.10 ppm
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Stormwater Requirements for Phosphorus – 0.10 ppm
Wastewater Treatment Plant Requirements for Phosphorus – 0.10 ppm
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Water Quality Modeling & TMDL
Development for the Illinois River Watershed
Sponsored by
EPA Region 6
Dallas, TX
Performed by
AQUA TERRA Consultants (Prime Contractor)
Mountain View, CA
And
Dynamic Solutions, LLC
Knoxville, TN
Arkansas/Oklahoma Illinois River Watershed Modeling
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Nature of Phosphorus
in Stormwater Runoff and
BMP Performance Data Summary
Prepared by
Jonathan E. Jones, P.E., D.WRE
Wright Water Engineers, Inc.
Denver, Colorado
303-480-1700
[email protected]
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Reference: Mike Clar, P.E.
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Phosphorus
Species
Particulate
Phosphorus
Orthophosphates
Transformation and Removal
Mechanisms
Physical separation (inert
filtration and sedimentation)
Adsorption/precipitation
Plant and microbial uptake
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Source: Maestre and Pitt (2005), as provided in
Urban Stormwater Management in the United States
(NRC 2008)
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Tulsa NPDES Monitoring
• EMC Data
from 1994 to 2010
• Median annual TP range
(1994-2010):
0.15 mg/L to 0.47 mg/L
• Median value for
2009 — 2010 was 0.30 mg/L
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Urban Stormwater BMP Performance
Data for TP
Various types of properly
designed, constructed and
maintained urban stormwater
BMPs can provide significant
reductions in total phosphorus
concentrations.
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Wet Pond
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Wetland
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Landscaped Filter Beds
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Bioretention and Pervious Pavement
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BMP Category
Bioretention
Detention Basin
Green Roof
Biofilter - Grass Strip
Biofilter - Grass Swale
Infiltration Basin
LID (Site Scale)
Manufactured Device
Media Filter
Percolation Trench/Well
Porous Pavement
Retention Pond
Wetland Basin
Wetland Channel
Composite
Maintenance Practice
Other
Total
Control Sites
#
30
39
13
45
41
2
2
79
37
12
35
68
31
19
25
28
6
512
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BMP Database Influent-Effluent
Total Phosphorus (mg/L) [Table View]
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Box Plot Key
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BMP Database Influent-Effluent
Total Phosphorus (mg/L)
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Irreducible
Concentrations of P
in BMP-treated Effluent
Source: Pulaski County 2010,
Prepared by Tetra Tech
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