investigating ground water contamination at ohio’s c&dd landfills aaron shear
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Ohio’s Solid Waste and C&DD Program Annual Meeting May 9, 2013. Investigating Ground Water Contamination at Ohio’s C&DD Landfills Aaron Shear. A Collaborative Effort Between. Division of Materials and Waste Management. Division of Drinking and - PowerPoint PPT PresentationTRANSCRIPT
Investigating Ground Water Contamination at Ohio’s C&DD
Landfills Aaron Shear
Ohio’s Solid Waste and C&DD Program
Annual MeetingMay 9, 2013
A Collaborative Effort Between
Division of Materials and Waste
Management
Division of Drinking and Ground Waters
Program BackgroundIn 2005, Ohio legislature enacted ORC 3714.071
• Established funding mechanism for conducting ground water monitoring at licensed C&DD facilities operating before April 15, 2005.
• The fund may not be used to pay for ground water monitoring activities required to comply with rules adopted under ORC 3714.02
• Authorized expenditures include installation of ground water monitoring wells, GW sampling, and laboratory analysis.
Licensed C&DD
FacilitiesApproximately 43 Currently Licensed
Facilities
ORC 3714.071
FundsCurrent fee for disposal of construction and demolition debris- $0.10/ton
• $0.08 to Ohio EPA (April 2013 ~ $1.3 Million)
• $0.02 to approved Health District ($35 ~ $110,000)
Priority CriteriaCreation of a numerical evaluation system which
will prioritize C&DD Facilities
• Similar to numerical scoring sheet• Open Dump / Abandoned Landfill Evaluation used by the
Closed Landfills & Orphaned Site Evaluation & Rating (CLOSER) Team
Prioritize C&DD facilities based on threat to:
Public HealthSafety
Environment
Priority Criteria
Public Health CriteriaProtection of Critical Drinking Water ResourcesProtection of Aquifer Susceptible to
ContaminationConditions Conducive to Ground Water
ContaminationEngineering Controls
Ground Water Monitoring
Site Specific Factors
Priority Criteria
pHGI Objectives• Evaluate the potential for a release of C&DD-derived
constituents to ground water downgradient of the limits of debris placement.
• Evaluate the adequacy of the ground water monitoring network for early detection of a release to ground water.
Preliminary Hydrogeologic Investigation (pHGI)
“Paper Study” of hydrogeology and other available facility data
• No monitoring well installation or ground water sampling• 5 possible conclusions from the pHGI
Preliminary Hydrogeologic Investigation (pHGI)
pHGI - ResearchFile Search – Health Department
Site Characterization Report (SCR) from Initial LicenseRecent license applicationsAnnual Ground Water Quality Reports from facilityNotice of Violations (NOVs)Other available data or informationPhotos
Historical Arial Photography
• Google Earth• CAGIS• Other mapping programs
• Track progression of C&DD placement
• Note recent and historical surrounding land uses
pHGI - Research
ODNR Maps & Reports
County Ground-Water Resource map
• Bedrock topography, glacial geology and other maps & reports
pHGI - Research
Statistical Evaluation of GW Monitoring DataNote statistically significant increases above background
Note increasing trends in monitoring parameters
pHGI - Research
Other Evaluation of GW Monitoring Data
• Create Iso-concentration maps of monitoring parameters
• Redox data
pHGI - Research
Site Reconnaissance
• Evaluate Current Site Conditions
Compare Site Conditions to publically-available data and information
pHGI - Research
Use of ORC 3714.071 Funds• Facility has potential to impact GW but no GW monitoring, and thus could
benefit from installation and sampling of additional wells using ORC 3714.071 funds.
• Facility has an inadequate GW monitoring network for early detection of a release and could benefit from installation and sampling of additional wells using ORC 3714.071 funds.
pHGI - Conclusions
No additional action needed• Facility has little or no potential to impact GW and no GW
monitoring, and thus no need to install wells using ORC 3714.071 funds.
• Facility has an adequate GW monitoring network for early detection of a release but no indication of impact to GW.
pHGI - Conclusions
Facility with GW monitoring and may be impacting GW – Owner/Operator needs to conduct a GW assessment.
• Consensual or Unilateral Orders to conduct an Assessment
-OAC Rule 3745-400-10
pHGI - Conclusions
Program TimelineProgram Timeline- 2010DDAGW & DMWM Staff begin development of numerical evaluation
system (Priority Criteria)
Begin gathering readily available facility data
and additional site resources
Program TimelineProgram Timeline- 2011Jan/Feb
Program Staff visit District
Office and Consult with Approved
Health Departments
May Interested Party
Comment Period and
Meeting with Representatives
from CDAO
June Responsiveness
Summary / Comments
Incorporated into Finalized Priority
Criteria
Summer/Fall Initial
Evaluation and Scoring of all
Licensed C&DD Facilities using Priority Criteria
Program TimelineProgram Timeline- 2012Preliminary
Hydrogeologic Investigations
were completed for 13 facilities
ORC 3714.071 Funds were
used at 2 facilities
Ground water Assessment
activities have commenced at
several facilities
Program Timeline
2013- Future• Develop pHGI for remaining facilities• Continue using ORC 3714.071 funds where needed• Conduct assessment activities where facilities may be
impacting ground water
