Showing posts with label groundwater infiltration. Show all posts
Showing posts with label groundwater infiltration. Show all posts

6/11/11

It's getting harder to find sites for new city wells

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During a recent exploration of unseen Madison spots, I had a chance to find out how hard it is to protect groundwater and find new well sites.

As Madison grows, we need more wells. As more areas become contaminated, wells have to be abandoned, and there are fewer places where you can put a new well.

Exploring an old landfill--now home to Terra

Early last spring, when I found myself on the east side of town, I decided to explore the woods by the state offices at the end of Agriculture Rd.

There was a nice path, but I quickly came to a huge dump.  Part of it was capped (imperfectly), and part was still receiving construction debris and snow removed from parking lots.


Salvaged concrete blocks were piled into mountains. 

6/10/11

Groundwater at Odana exceeds standards for salt



The Cogeneration plant on the west side of the UW campus is allowed to withdraw large amounts of water from Lake Mendota, based on a complicated swap agreement with DNR.

That agreement called for an infiltration field at the Odana Hills Golf Course, where up to 60 million gallons a year of stormwater are pumped into the soil.  Background.

One of the problems with this agreement is that the water being pumped into the soil is rather salty, due to overuse of road salt in the area. Several test wells in the area show levels of salt over the Enforcement Standard.  In other words, the groundwater is starting to become polluted with salt.