Thurmont
considers stormwater storage site
By Richard D. L. Fulton
News Editor
THURMONT,
Md. – The town could safely store as much as 2.5 million
gallons of diluted “wild water” (also called infiltration
and inflow or I&I), if a 10-acre site available for sale
can accommodate a significant retention pond.
An ideally
sized retention pond would help alleviate the demand on the
wastewater treatment plant by allowing excessive ”wild
water” to be diverted into the holding area for future
processing.
Board
President “Mayor” Martin A. Burns told his fellow
commissioners at the Dec. 19 meeting that the proposed storage
compound would be used most during “catastrophic overflow,”
and principally for short-term emergency storage.
However,
to be able to use the land or to see how best to manage the
land, the extent of wetlands on the site needs to be determined,
since wetlands are protected under both state and federal
law.
Burns
said at the meeting, “Unless there is a state law …
that would prevent that (establishment of the basin) …
it could hold 2.4 million gallons. We think there would be
a significant amount of storage with that (land acquisition).”
The present
plans envision modifying an existing man-made pond on-site
into a holding pond for the wastewater. Modifications would
include lining the pond to prevent the escape of the stored,
diluted wastewater. Burns said the site could potentially
even be used for expanding the wastewater treatment facility.
He explained
that a real estate agent had approaching the town, offering
to let the town buy the site (from the Humerick family). “Even
is half (proved to be) wetlands,” Burns said, “it
would be worth buying.” Burns would not confirm information
obtained by The Dispatch indicating the property
might cost around $100,000.
The wetlands
determination work needs to be done first, and there are no
projected costs to create the proposed water containment pond
(retention basin). But the board noted that it would cost
a great deal more to construct water storage towers to hold
the excessive stormwater. A water tank, Burns said, could
run from $750,000 to $1 million.
According
to Burns, two companies have bid on conducting the wetlands
study, but the company names have not been made public. The
lowest bid is $1,900, but includes only the study. The higher
bid of $3,000 is a complete package, including the study and
representation by the company before MDE and/or the U.S. Corps
of Engineers.
Because
of the need to know how much of the proposed site may be wetlands,
“We have to spend the money to determine if we (even)
want to buy it (the land),” Burns told The Dispatch.
Editor’s
Note: “Wild water” is a combination of groundwater
that infiltrates the wastewater collection system through
cracks and breaks in pipes below ground and rainwater or melting
snow that flows into the system through manholes, storm drains
or basement drains.