Sewer
odors eliminated at The Boulders
by
Brian DiTullio
CAREFREE
– A little bit of engineering and some hard work eliminated
long‑standing sewer odor problems in The Boulders
area.
Tom
Nichols with Black Mountain Sewer Company spoke to town
council Sept. 4 before giving way to a presentation on
what the utility did to remove a lift station and put
an end to persistent odor problems near the Carefree Inn
Estates.
Nichols
said, in short, the lift station was completely removed
and all evidence of its existence taken away. The odor
problem was eliminated through the installation of “air
jumpers,” four‑inch pipes installed in four locations,
two feet below ground, running manhole to manhole.
Debra
McGrew, an engineer with Black Mountain Sewer, showed
council before and after pictures of the lift station
site, which now reveals only a manhole cover, and stated
the company plans to do more landscaping.
“It’ll
look like there was never a lift station when we’re done,”
she said.
In
response to a question about installing more air jumpers,
McGrew explained that installation is the engineering
solution to a flow problem created by the physical realities
of the terrain and the system’s design in the Carefree
Inn Estates area of The Boulders.
The
problem, according to McGrew, is “turbulence” at the Boulder
Drive‑junction manhole combined with a negative
slope.
Mayor
Wayne Fulcher said he has spoken to some residents who
were affected by the odor problems and they are “in delight”
over the fix.
Nichols
informed council, responding to a question from the public,
that Black Mountain soon would be undertaking the formation
of a new master plan for the sewer system.
“We’ve
done it in pieces before,” he said. “Now we’ll better
understand how development will affect us.”
Nichols
noted that the system is adequate to serve the area through
build‑out, but that any excess flow can be passed
on to Scottsdale for processing. He also said a new treatment
plant is under consideration.
As
for other sewer odor problems around town, the area behind
Carefree Station Bar & Grill in the town core was
mentioned, to which Nichols responded his company is aware
of the situation and is trying to find a solution for
that particular problem.
In
related news, the council received a report on grease‑trap
use by local restaurants. Building official Michael Tibbett
said 85 percent of town restaurants are in compliance
with the ordinance, but that number could be higher because
he hasn’t yet received a report from every restaurant.
Tibbett
pointed out there are only two restaurants, unnamed, that
have not replied in some form to his letters. He indicated
those businesses would be turned over to the town attorney
if they do not respond soon.
Fulcher
noted grease traps are required in restaurants by town
code and that “the ball is in our court to enforce our
ordinances.”