| There are three (3) distinct sections
of waste water collection and treatment. All three sections
are required to be permitted by the State of North Carolina
and the United States EPA. Each section is required
to do daily and monthly monitoring and testing as well
as yearly reports and inspections as required by the
State of North Carolina.
The first and most important permit is the NPDES
(National Pollution Discharge Elimination System) permit.
This is the Town of Maggie Valley’s primary permit
for operation of our Waste Water Treatment Plant (WWTP).
The operation of the WWTP requires daily sampling and
testing for TSS (Total Suspended Solids), BOD (Biological
Oxygen Demand), Fecal Coliform, Ammonia, Nitrates and
Nitrites, Phosphorus, Total Nitrogen, Chronic Toxicity,
Flow, P.H., Temperature, Chlorine, Total Residual Chlorine,
Dissolved Oxygen and Settable Solids. The majority of
this testing is permit required and other testing is
for daily adjustments in operations that include: setting
wasting rates; increasing or decreasing oxygen levels
in the aeration basin; increasing or decreasing of P.H.;
amount of flow through each aeration basin; feed rates
for Chlorine and Sulfur Dioxide. Along with daily testing,
monitoring and daily adjustment, is the maintenance
and cleaning required to conform to our NPDES permit.
The maintenance, cleaning and adjustments includes work
on skimmers, effluent gates, cylinders, pneumatic valves,
settling tubes, clarifiers, diffusers, programmable
controllers, electric relays, fuses, air compressors,
chemical feed systems, flow valves, pumps, bar screens,
timers and many other maintenance and cleaning issues
that arise. To continue meeting the limits and requirements
of the NPDES permit, the staff at the WWTP has to monitor
and adjust all of the above items daily.
Another permit at the WWTP is the Residual Handling
W.Q. (water quality) permit. This permit covers
the operation, testing requirements and general handling
of our WWTP sludge and non-biological solids. The Town
of Maggie Valley uses the Lime Stabilization Process
for sludge and land- applies this product on agricultural
ground. We produced 300 tons of stabilized sludge in
2005, and 72 tons of non-biological solids, which are
dewatered in the bar-screen and then land-filled. Again,
this W.Q. permit includes required daily, monthly and
yearly sampling, monitoring and testing. Lime Stabilization
is a lengthy process that includes: dewatering sludge,
mixing with lime, piling, testing, windrowing, turning,
drying and disposal.
The third permit within the Enterprise Fund is our Collection
System permit. This permit covers the operation
and maintenance of the Maggie Valley Wastewater Collection
System. Today, the Town of Maggie Valley Collection
System includes 40 miles of 12 inch, 8 inch and 6 inch
sewer pipe, 910 manholes and 1 pump station. The operation
and maintenance of a collection system is labor intensive
and time consuming. The State of North Carolina requires
that we clean and inspect 10% of our collection system
yearly, which amounts to 4 miles or 21,120 linear feet.
Permit requirements include walking and visually inspecting
the entire 40 miles of Collection System at least one
time a year, keeping all sewer line right-of-ways open
and accessible. We have to mow and remove brush and
debris from all cross county sewer line right-of-ways
at least two times per year. We must visit each pump
station weekly and perform maintenance on the pumps,
alarms and wet-well. We must keep detailed logs of all
operation and maintenance and all customer complaint
calls.
Another time consuming part of the Collection System
is sewer inspection. We monitor, inspect and test all
new sewer installations. This assures that all new sewer
lines being installed today are installed correctly
to Town and State requirements and should be trouble
free for years.
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