Transcript Decentralized Wastewater Treatment Systems Overview for

Decentralized Wastewater Treatment Systems
Overview for ACE & KVIS
Septic Solutions Symposium
April 22, 2015
Decentralized Wastewater Treatment Systems
Overview for ACE & KVIS
Bob Eichinger – April 22, 2015
 Decentralized Wastewater Treatment Systems (DWTS) are
also known as Septic Systems, Onsite Systems, OSWTS,
ATU and ETU.
 A DWTS is any wastewater treatment system that collects,
treats and disperses wastewater close to its original
source.
 DWTS technologies can be used for residential,
commercial and Small Community (Cluster) systems.
 DWTS most commonly do subsurface discharge of
treated effluent but they also do surface discharge.
www.alliedcommunity.org
www.onsite-engineering.us
DWTS & Small Community Systems
Brief History in New York State
April 22, 2015
 Several hundred Small Community Systems in USA. Their use is
proactively encouraged by the EPA as “Green Infrastructure” solutions .
 DWTS Small Community Systems are eligible for EPA/CWA funding
through EFC same as CTP/Sewer.
 Low Income Communities eligible for EFC/DEC Engineering Planning
Grants.
 Hillsdale, NY completed in 2009 most visible DWTS example in NYS.
 DWTS Small Community System RFPs gaining visibility – Amenia, Suffolk
County Long Island, Old Saybrook & Old Lyme, CT.
 NYCDEP CWC has over 1,000 installed residential & commercial ETUs
now looking at DWTS for Small Community Systems in WOH Watershed.
 NYCDEP Putnam County SRP installed 160 residential ETUs to replace
failing residential systems closest to reservoirs from 2004-2011 in Croton
Watershed.
 Skaneateles Lake EPA National Community Demo Project 2002.
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Decentralized Wastewater Treatment Systems
Overview for ACE & KVIS
April 22, 2015
Conventional Septic System
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Skaneateles Lake EPA Demo Center
Small Lot Installation ETU Peat Filter System
Skaneateles Lake EPA Demo Center
Orenco ETU with BSF
Decentralized Wastewater Treatment Systems
Orenco STEP System
April 22, 2015
Conventional Septic System
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Decentralized Wastewater Treatment Systems
Overview for ACE & KVIS
April 22, 2015
Orenco Small Community/Cluster System – Hillsdale, NY
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GeoMat™ Leaching System
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Low Profile
Enhanced Oxygen
Water & Nutrient Reuse
NSF Standard 40 Certified
4 years later STE @ 1.8 gpd/sq ft
GeoMat™ Leaching System
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Easy and fast to install
Minimizes the height of mounds
Helps polish pretreated wastewater
Laterals and orifices are adjustable
and serviceable
More uniform than drip
GST™ Leaching System
TM
GEOMATRIX GST LEACHING SYSTEM
Plan View
B'
GST6206)
GST6212)
GST6218)
GST6224)
GST6230)
GST6236)
25"
CT DOT #6 stone
12" Distribution
pipe*
ASTM C-33 Sand
(or approved equivilent)
A
A'
>2"
B
4" 4"
. I.D., ASTM D-3034, SDR 35 pipe for gravity applications
min. I.D., ASTM D-2665, SCH 40 PVC pipe for pressure applications
Copyright 2007 GEOMATRIX, LLC
Patents Pending
GEOMATRIX ST LEACHING SYSTEM
Plan View
Geomatrix Systems, LLC., Killingworth, CT
860-663-3993
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4 years later – 110% design load
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GST™ Leaching System
Fill forms with sand and stone and pull
SoilAir™
Optimum Oxygen
Enhanced Treatment & Hydraulic Capacity
Air vs. No Air
GST™ Leaching System
Installation of GST at the Mustard House
Vacant house at 602 Route 22, Croton
Falls needing septic replacement
GST Leaching System
New system in Croton Falls consisting of SoilAir
distribution box and GST
SoilAir
Completed installation with
the SoilAir, conventional tank
and distribution box leading to
the GST.
Decentralized Wastewater Treatment Systems
Overview for ACE & KVIS
April 22, 2015
 Cost Comparison. The average cost for a Small
Community Cluster System (SCCS) per 3-4
Bedroom Residential House compared to ETU
and Big Pipe – Central Sewer Treatment.
 SCCS = $15,000.00 per residence.
 ETU = $21,250.00 per residence.
 Big Pipe - Peach Lake = $72,000.00 per residence.
DWTS Advantages & Benefits
Versus Central treatment Plant (CTP)
April 22, 2015
 DWTS usually have a much lower cost for design,
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equipment, installation, operation and maintenance
versus CTP.
Less disruption to public roads and infrastructure.
Flexibility to replace or upgrade selected properties,
neighborhoods or troubled areas versus CTP “all or
nothing” approach. Allows for “Mix Solution”.
Allows for managed growth with modular capacity.
Subsurface or surface discharge option with tertiary
treatment (UV, nitrogen & phosphorus reduction etc)
Environmentally beneficial recharge of ground water
aquifers and allows for water reuse opportunities.
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With support from:
Panel members: Chris Burdick, Supervisor, Town of Bedford;
Bob Eichinger, Advisory Consultant, Onsite Engineering,
PLLC; Pete Harckham, County Legislator and Chair of the
County’s Septic subcommittee; John Kalin, PE, President, DC
Engineering; Diane Lewis, M.D.; Dave Potts, Environmental
Scientist, Geomatrix, LLC. ACE: Don Scott – Moderator, with
Betsy Weir and Joan Arnold
Decentralized Wastewater Treatment Systems
Overview for ACE & KVIS
Septic Solutions Symposium
April 22, 2015
 Allied Community Enterprises
PO Box 394 North Salem, NY 10560
Joan P. Arnold
[email protected]
914-295-0107
www.alliedcommunity.org
 Onsite Engineering, PLLC
53 Akindale Road Pawling, NY 12564
Bob Eichinger
[email protected]
845- 803-1571 www.onsite-engineering.us