Recent content by rnancarrow

My client has water supply wells in limestone with H2S average of 2.3 mg/l. The average iron is 227 ug/l and ranges from 170 to 1730 ug/l, with the highest iron associated with highest H2S. I suspect iron bacteria/sulfate reducers in the well and formation. They are chlorinating directly after...

Dubliner: Thanks for the response on the styrene question. One of the complications we have is the soil above the bedrock, which is a mixed bag of silts, sands gravelly sands, some clay. The styrene has migated into some of these soils and contaminated them to the top of the bedrock. Some free...

I am involved as a reviewer for the remediaton of a spill of styrene monomer UN 2055, into organic soils overlying somewhat fractured granitic bedrock. The contractor has chosen dig and dump and replacement with medium sand, followed by topsoil and planting for restoration. I am concerned about...

Thanks for the tip. I will give a try!

I am looking for shareware to do simple hydraulics calculations for small water systems. I checked the web but most packages are more than I need. Any suggestions? I work mostly in metric units, as I live in Canada. Thanks Richard rnancarrow@bmts.com