City plans for Long Creek Watershed (Printed Oct. 5, 2007)


By Amanda Estes

Staff Writer

South Portland City Councilor Jim Hughes said, in the future, people
will tell their grandchildren about a time when it wasn’t safe to eat
fish caught in Clark’s Pond. They will recall fewer beaver sightings
and a time when the city’s largest pond was too polluted for swimming.
Then they will note successful efforts in the ensuing years to clean up
the area’s freshwater bodies and will say, “You kids have got it too
easy.”

The Long Creek Watershed encompasses all of the land that drains into
Long Creek and its tributaries, which flow into Clark’s Pond, the Fore
River and eventually Casco Bay. Most of the Long Creek watershed is
located in South Portland, but it also includes land in Westbrook,
Portland and Scarborough.

South Portland received a $120,000 federal grant under section 319 of
the Clean Water Act, which provides funds for managing non-point source
(NPS) pollution or runoff carrying natural and manmade pollutants. The
grant calls for the four municipalities and stakeholders in the
watershed to work together to develop a plan for restoring the area so
it meets state and federal quality standards.

A committee charged with creating a Long Creek Watershed Management
Plan gathered for a kickoff meeting on Sept. 27 at National
Semiconductor in South Portland. In addition to municipal officials,
the committee includes representatives from local businesses,
conservation groups, commerce chambers, the Maine Department of
Environmental Protection (DEP), the Maine Department of Transportation
(MDOT), the Maine Turnpike Authority (MTA) and ecomaine. The committee
will seek to implement proactive measures to offset the impact of new
and existing development on the water quality and the overall condition
of Long Creek. Once implemented, the plan could provide alternative
mechanisms to DEP regulations for enforcing development standards in
the watershed.

Don Witherell, director of the DEP’s watershed management department,
said runoff from impervious surfaces such as parking lots, rooftops and
roads has degraded the water quality in Long Creek, leading to its
current status as an “impaired urban stream.” Erosion, sedimentation
and the filling of wetlands have also contributed to the stream’s
polluted state, resulting in “destabilized banks and turbid water,”
Witherell said.  

A 1983 study of Clark’s Pond described the area as a recreational
destination in the midst of forest and farmland, Witherell said. The
pond was a popular spot for swimming, picnicking and fishing – a
Clark’s Pond fishing derby was held in 1946. Up until the late 1950s,
the pond was also used for ice harvesting.

Today, the water flowing into Clark’s Pond does not meet the standards
of its Class C designation, outlined by Maine’s Water Classification
Program, due to violations in the dissolved oxygen and aquatic life
criteria.  According to a 2002 DEP “biological, physical and
chemical assessment” of Long Creek and the upstream Red Brook – which
is considered stressed, but to a lesser degree than Long Creek. Long
Creek’s brook trout population has disappeared.

The 2002 assessment also found increased concentrations of metals,
chloride, hydrocarbons, phosphorous, nitrogen; increased temperatures;
and a reduction in forest habitat along the stream.

Witherell said the “impaired urban stream” designation leads to higher
municipal costs for treating stormwater, increases in state and federal
regulations for new and existing development, higher costs for
developers and less local control overall. With a plan in place to
treat runoff at or close to its source, future projects could receive
waivers from the current stormwater regulations, lowering the costs of
new development. The Urban Impaired Stream standard, for example,
requires developers to “pay a compensation fee or mitigate [the]
project’s impact by treating, reducing or eliminating an off-site or
on-site pre-development impervious stormwater source,” according to the
DEP Web site.

Witherell said developing a watershed management plan will allow
municipalities and commercial property owners to “get ahead of the
regulatory train.”

Rain gardens, wet ponds, parking lot bioretention areas and soil
filters all represent cost-effective and proactive methods for treating
runoff at the source, Witherell said. Existing developments may find it
is cheaper to incorporate these projects with other site renovations,
he said. Habitat and buffer work in the stream itself will also help to
reduce erosion and restore shade vegetation along the stream’s banks.

“Ultimately, what the acid test is, is the water quality of Long
Creek,” Witherell said. “Watershed management is very much an adaptive
process. It’s going to be a continuous try-it-and-see kind of approach.”

Dave Russell, site service manager for semiconductor manufacturer
Fairchild Semiconductor, said he would like to see the plan in place
five to eight years from now.

“I’d like to see this done in an expeditious manner - without creating undue hardship on property owners,” Russell said.

Shay Bellas, a member of the committee and the South Portland
Conservation Committee, who also helped build the newly opened 1.2 mile
trail around Clark’s Pond to Westbrook Street, is looking forward to a
resurgence of urban recreational activities in the city’s west end.

“I have a kayak that I would love to put into Clark’s Pond,” she said.

The South Portland Land Trust celebrated the first Long Creek Family
Day on Sept. 30 to “celebrate more green miles in South Portland,” but
also to bring public awareness to the community effort needed to
restore the Long Creek watershed.

As the committee moves forward in developing goals for the watershed
management project, it is asking property owners to stay informed and
participate in the process. Property owners are encouraged to attend a
Long Creek Planning Project Educational Forum from 7 to 9 p.m. on Nov.
1 at the Maine Mall.

Property owners interested in one of the project’s subcommittees may
contact Pam McCarthy at 767-7675 ext. 7578 or
pmccarthy@southportland.org.







 

What did you think of this article?




Trackbacks
  • No trackbacks exist for this post.
Comments
  • No comments exist for this post.
Leave a comment

Submitted comments are subject to moderation before being displayed.

 Name

 Email (will not be published)

 Website

Your comment is 0 characters limited to 3000 characters.