THE "CLEANUP" HAS ALWAYS BEEN A SHAM
Wow how time, focus and concentration eventually make things clearer. Around 1995 I parked my car possibly in front of the then Woolwich Arena with a sign on the roof reading "The Cleanup Is A Sham". I was referring to the DNAPL reports and how APTE had rolled over on the issue and supported Uniroyal, CRA and the Ministry of Environment (M.O.E.) who all denied the presence of free phase DNAPL on the Uniroyal Chemical site despite all criteria for its' presence being exceeded. The distinction between free phase versus residual DNAPL almost seemed like the guilty parties pretending that if there was no free phase DNAPL then DNAPL as residual DNAPL really was no big deal. It was a big deal and there wasn't a shred of proof that there wasn't free phase DNAPL and in fact the opposite was true. For a long while I clearly understood how badly APTE had screwed up but that was the key. I worked with Susan Bryant for years afterwards (until late 2007) thinking that APTE had simply badly screwed up. I was wrong. They (Susan B. and Sylvia ) were already co-opted by late 1993 when the M.O.E. released their December 10, 1993 DNAPL report accepting the Conestoga Rovers (CRA) nonsense and gibberish denying free phase DNAPL on the Uniroyal site. We later found out that Frank Rovers (CRA) actually admitted at a UPAC meeting that the Uniroyal site had DNAPL throughout it supposedly so extensively that removing it would be impossible. You don't get residual DNAPL until after a continuous flow (free phase) has gone by leaving unconnected strands and droplets behind. This residual DNAPL if in an aquifer with flowing groundwater is far more likely to fully dissolve and disappear much faster than pools of free phase DNAPL. We also found out that free phase DNAPL from Uniroyal had left their site and migrated under gravity westwards onto the Nutrite/Yara site. This is precisely why pumping well W8 was finally positioned in the Municipal Lower Aquifer on Nutrite's property close to Union St. years after the other offsite pumping wells started up in 1998. To this day Lanxess states that chlorobenzene concentrations throughout Elmira are highest from pumping well W8.
Over the following decades further issues have come to light. They include multiple different DNAPL chemicals and others in the Uniroyal subsurface. Each and every chemical compound in subsurface aquifers reduces the solubility concentration of the others present. Hence the lab solubility figures in no way match the actual in ground solubility concentrations found in and around Uniroyal. The Effective Solubility concentrations are much lower than lab solubilities and despite this as recently as a couple of years ago Allan Deal (GHD) was using the 1% Solubility Rule to "prove" that there weren't DNAPLS present in a presentation to TRAC members. Yours truly attempted to clarify but was quickly shut down by the TRAC Chair. So much for public consultation and so much for ethics from Uniroyal/Lanxess consultants.
The latest issue that has come to my attention is the recrystallization of hydrophobic compounds in the subsurface after DNAPL dissolution. DDT and Dioxins, both courtesy of Uniroyal Chemical, have extremely tiny solubility concentrations in water. In solvents however it's a totally different thing as both compounds readily dissolve into chlorobenzene and many other solvents found at Uniroyal and now throughout the Elmira Aquifers. DDT and dioxins, PCBs and much more will travel both with the subsurface DNAPL as well as with passing groundwater that slowly dissolves the DNAPL albeit the DDT and Dioxins are at extraordinarily lower concentrations than say chlorobenzene and other solvents. That said a Solubility of 50 ng/l (part per trillion) is still higher than the drinking water standard for DDT (approx. 20 ng/l) and very much higher than the drinking standard for 2,3,7,8 TCDD (dioxin) which is 15 ppq (parts per quadrillion).
A while back I advised that there was was DDT and Dioxins in Elmira's groundwater at very low concentrations although still likely above the Ontario Drinking Water Standards (ODWS). Now I have learned that as DNAPL slowly dissolves over time (decades to centuries) both DDT and Dioxins can at a certain concentration within the remaining DNAPL, recrystallize into their solid form. They become once again on their own a new source if you will of DDT and Dioxin to the aquifer. It seems obvious to me that all the pump & treat in the world will never restore Elmira's drinking water. The other problem is that both the MECP and the successor companies to Uniroyal Chemical have a long history of always finding the cheapest, least effective remediation method. To date I see no serious change in that behaviour despite the never ending puffery and bull from Lanxess, GHD and the MECP. These folks are simply snake oil salesmen selling the public false promises.