[Date Prev][Date Next][Date Index]

CYNIC'S GUIDE...Mine Water Discharge/Oakland County



CYNIC'S GUIDE TO THE 9/30/96 MDEQ CALENDAR
Part 5

Watch out for mining discharge in Northern Oakland County!!


>OCTOBER 15, 1996     7:00 - 9:00 p.m. 
>PUBLIC MEETING REGARDING AMERICAN AGGREGATES
>CORPORATION, RAY ROAD PLANT, OXFORD, OAKLAND
>COUNTY, (MI0054054) for issuance of a permit to discharge 0.72
>million gallons per day of mine dewatering water to an unnamed
>drain, a tributary of Horseshoe Lake, via an unnamed marsh.
>Public meeting to be held at the Oxford Vets Memorial Civic
>Center, 28 North Washington, Oxford, Michigan. Information
>Contact: Asad Quraishi, Surface Water Quality Division,
>517-335-4119. 


[THE CYNIC COMMENTS:  Northern Oakland County/EMEAC
folks....please take a look at this one.  Gravel pit and mine
dewatering has been known to cause severe water pollution
problems from suspended solids, particularly during storm flows. 
Erosion occurring within a pit can cause much of the suspended
solids generation after much of the mine water has been removed.  

This is a large discharge and the marsh should not be used as an
"ad hoc" pollution control device, unless you want to see it slowly
filled.  Mine dewatering systems should use a "clarying pond,"
potentially even additives called "flocculants" to control suspended
solids water pollutants.

They should be required to show that they can meet turbidity/
suspended and total dissolved solid limitations even during storm
flows and particularly after they have discharged most of the water,
when these kinds of problems get worse.  If they can't, the permit
should not be granted.

MDEQ enforcement on this kind of thing has been astonishingly lax
up at Lafarge Cement in Alpena where minedewatering for the last
several years has caused significant water pollution problems in
Thunder Bay in Lake Huron.]


This is the CYNIC...OVER AND OUT!!!



----------------------------------------------------------------------------
----------------------------------
Alex J. Sagady & Associates    		Email:  asagady@sojourn.com
Environmental Consulting and Database Systems
PO Box 39
East Lansing, MI  48826-0039  
(517) 332-6971 (voice); (517) 332-8987 (fax)