WebOn December 1, 2006, MidAmerican Energy submitted a Petition for Technical Impracticability (TI) Waiver for the Peoples Natural Gas site. As stated in your letter, the petition was based ... efforts and treatability studies that now allow the EPA to move forward with the selectio a n of modification ofthe remedy at the site. WebTI waivers generally will be applicable only for ARARs thit aie used to establish cleanup performance standards or levels, such as chemical-specific MCLs or Stale ground-wa- ter quality criteria. Highlight 1. CERCLA ARAR Waivers The six ARAR waivers provided by CERCLA §121 (d) (4)are: 1.
Memo: EPA Na,onal Remedy Review Board From: Mul,cultural …
WebMar 30, 2024 · Summary of Technical Impracticability Waivers at National Priorities List Sites (PDF) (101 pp, 1.7 MB) August 2012, OSWER Directive 9230.2-24 The report … WebApr 6, 2024 · EPA Established a New Standard for Revisiting Waiver Determinations and Applied It In the recent notice of decision, the agency found that its prior reconsideration of the waiver under the particular facts and circumstances of this case was improper and that EPA had not properly exercised its limited authority to reconsider a waiver. [11] thina manje projects
Selecting a Groundwater Remedy US EPA
WebThe TI waiver zone (containment zone) for the chlorobenzene plume is 8Transducer pairs measure changes in water level measurements and can indicate the development of a downward gradient. WebTechnical Impracticability (TI) Waivers •Superfund law allows for waivers of applicable or relevant and appropriate requirements (ARARs) in limited circumstances •TI just one of six waivers - most used •TI waiver may be appropriate when compliance with an ARAR “is technically impracticable from an engineering Webentirely within the boundaries of the already contaminated technical impracticability ("TI") waiver zone established by EPA in the Record of Decision ("ROD"). Finally, such reinjection was already approved and performed at the Site in 2005 for purposes of pilot testing activities and has also been accepted at other CERCLA sites. thina zungu sawubona jesu