From: | Tony Chenhansa <tonyc@cpeo.org> |
Date: | 28 Oct 1998 10:29:33 |
Reply: | cpeo-brownfields |
Subject: | Re: National Stakeholders' Forum on MNA Report |
Original message from Peter Strauss: > From: peter strauss <pstrauss@igc.apc.org> > Re: National Stakeholders' Forum on MNA Report -Reply > > > Bruce, > > While you point out some of the more favorable aspects of the > containment zone policy (not to be confused with natural attenuation), > it does have many problems. > > First of all, the policy as I understand it, requires that plumes be > contained. I expect that many future applications of the policy will > require some measure of pumping to halt migration of a plume past an > artificial boundary. Second, it places a heavy emphasis on benefit/cost > analysis. In my opinion this analysis has been abused in the past and > will be abused in the future. Regulators would be talking about the > discount rate rather than how to effectively clean up. The policy as I > have read it does not lay out sufficient guidelines for the types of > assumptions that would go into this analysis. Third, in California we > have a state law and state regulations that protect "potential drinking > water supplies". In my opinion, implementation of this policy would > contravene this protection. > > If you have had experience with implementation of the CZ policy, I would > be interested in hearing about it. > > Peter Strauss > > > > > > Original message from Bruce Klafter > > > > From: Bruce Klafter <bklafter@orrick.com> > > > > I'm curious whether anyone suggested that the SWRCB's > > Containment Zone (CZ)Policy might be a viable model. CZ > > requires a showing before monitored natural attentuation is > > permitted: either that source removal has been > > accomplished and cleanup has reached asymptotic levels > > or that a cleanup is impracticable or that the "burden" of > > cleanup is disproportionate" to the benefits. > > > > In addition, the designation of CZ requires the discharger to > > pay a "mitigation" fee. The amount of the fee may be as > > high as 10% of the avoided cleanup costs (although only a > > few of these fees have actually been imposed to date). > > > > This seems like a model that might allow community groups > > to get comfortable with natural attenuation (or at least more > > so). > > > > P.S. Pump and treat is becoming a disfavored remedy not > > just because of the excessive cost; it just doesn't work in > > many cases because of DNAPLs or other problems. DOD > > or other dischargers shouldn't be required to "buy" a > > community's trust by installing a system that's ultimately > > ineffectual. The dollars should be spent more > > constructively. > > > > Thanks again for the report. | |
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