Wastewater Report
Town of Cary
2008 -2009 Annual Wastewater Report
Leading the state in protecting and preserving our finite natural resources.
The Town of Cary Annual Wastewater Report
In an effort to keep citizens informed and maintain compliance with State of North Carolina requirements, the Town of Cary is pleased to provide this overview of programs relating to the operation, maintenance, and performance of its wastewater collection system.
The Town of Cary currently operates and maintains nearly 800 miles of collection system, 46 wastewater pumping stations, and nearly 23,000 manholes and safely treats 12 million gallons of wastewater on a daily basis.
Community Participation
The Town of Cary encourages public interest and participation in decisions affecting our community. Cary’s Town Council meetings are held in the Town Hall Council Chambers, 316 N. Academy Street, and cablecast live on Cary TV, cable channel 11. For additional information concerning Council meeting dates and times, please see the calendar at www.townofcary.org.
Protecting the Environment Just Became Easier
Now, protecting the environment is just a phone call away. Most of us are aware that putting byproducts of food preparation down the kitchen sink can contribute to sewer overflows.
The Town of Cary now has a Residential Waste Cooking Oil Disposal Program. Cary residents can now collect their cooking oils, fats and grease in a resealable container for pickup by the Town. When at least a half gallon has been saved, schedule a pickup by contacting the contact the Public Works Department at (919) 469-4090.
The first of its kind known in the state, the program is aimed at reducing sewer blockages and overflows. We see the evidence and potential dangers of fats, oils and grease (FOG) each day as crews clean and inspect the wastewater collection system.
As wastewater flow rises and falls, grease collects on the interior of the pipes. These grease globs grow and constrict wastewater flow and reduce capacity, ultimately blocking the line.
In addition to this new service, remembering the following can help maintain public health and our environment by keeping grease out of the wastewater collection system:
• Never pour greases, fats, or oils from cooking down the drain
• Reduce use of garbage disposals by creating a compost pile or disposing of food
scraps in the trash can
• Remove grease from kitchen utensils with a scraper or paper towel before
washing them
Reclaimed Water Available
Bulk reclaimed water can be used in a number of construction and landscaping applications, such as:
• Fertilizer make-up water for non-edible plant crops
• Dust control
• Mixing concrete and mortar
• Cooling direct drilling boring bits
The Town of Cary has bulk reclaimed water filling sites located at both of our water reclamation facilities. If you are interested in using reclaimed water for these applications, or if you have questions on other possible uses, please contact the Public Works Department at (919) 469-4090.
Each year, many of the sewer overflows in North Carolina are directly attributed to the improper disposal of fats, oil and grease in kitchen drains. Grease congeals on sewer pipes, which causes wastewater to flow back into homes and businesses or directly into waterways.
For more information please visit www.townofcary.org
Collectively it Becomes a Problem
What seems to be small and insignificant common household items, unlikely to create a problem, can become the cause of larger problems in the wastewater collection system. However, these items added to an increasing number of customers discharging to the collection system combine to cause blockages resulting in sewer overflows.
In the past year, a number of sanitary sewer overflows (SSO) have occurred because of a buildup of debris that should have been placed in the garbage, not in the sewer system. Keep in mind that these common household items should NEVER be flushed down the toilet or washed down the drain:
Diapers
Kitty Litter
Cotton Balls
Acne Pads
Dental Floss
Feminine Hygiene Products
Condoms
Sanitary/Disposable Wipes
Cotton Swabs
Rags
Drinking Straws
Tooth Picks
Bandages
Plastics
Paper Towels
North Cary Water Reclamation Facility 2008-2009 Annual Performance
|
Flow |
Carbonaceous Biochemical |
Ammonia |
Total Suspended Solids |
Fecal Coliform |
Dissolved Oxygen |
Total Nitrogen |
Total Phosphorus | ||||||||||
|
Month |
Limit |
Actual |
Limit |
Actual |
Limit |
Actual |
Limit |
Actual |
Limit |
Actual |
Required |
Actual |
Limit |
Actual |
Limit |
Actual | |
|
MGD |
MG/L |
MG/L |
MG/L |
#/100ML |
MG/L |
MG/L |
MG/L | ||||||||||
|
July |
12 |
5.82 |
4.1 |
0.00 |
0.5 |
0.05 |
30 |
0.30 |
200 |
1.00 |
>5* |
7.70 |
** |
3.32 |
***2 |
0.26 | |
|
August |
12 |
5.52 |
4.1 |
0.00 |
0.5 |
0.04 |
30 |
0.00 |
200 |
2.00 |
>5* |
7.90 |
** |
3.16 |
***2 |
0.66 | |
|
September |
12 |
6.90 |
4.1 |
0.00 |
0.5 |
0.01 |
30 |
0.35 |
200 |
1.00 |
>5* |
7.90 |
** |
3.54 |
***2 |
0.47 | |
|
October |
12 |
6.43 |
4.1 |
0.00 |
0.5 |
0.00 |
30 |
0.60 |
200 |
1.00 |
>5* |
8.30 |
** |
4.09 |
***2 |
0.43 | |
|
November |
12 |
6.14 |
8.2 |
0.00 |
1.0 |
0.00 |
30 |
0.40 |
200 |
1.00 |
>5* |
9.10 |
** |
4.94 |
***2 |
1.18 | |
|
December |
12 |
6.52 |
8.2 |
0.00 |
1.0 |
0.03 |
30 |
1.20 |
200 |
1.00 |
>5* |
9.30 |
** |
4.23 |
***2 |
0.35 | |
|
January |
12 |
6.50 |
8.2 |
0.00 |
1.0 |
0.02 |
30 |
0.50 |
200 |
1.00 |
>5* |
9.70 |
** |
5.41 |
***2 |
0.60 | |
|
February |
12 |
6.08 |
8.2 |
0.22 |
1.0 |
0.04 |
30 |
0.70 |
200 |
1.00 |
>5* |
9.70 |
** |
4.51 |
***2 |
0.26 | |
|
March |
12 |
7.17 |
8.2 |
0.00 |
1.0 |
0.08 |
30 |
0.90 |
200 |
1.00 |
>5* |
9.60 |
** |
5.17 |
***2 |
0.28 | |
|
April |
12 |
6.14 |
4.1 |
0.00 |
0.5 |
0.03 |
30 |
0.90 |
200 |
2.00 |
>5* |
9.30 |
** |
3.61 |
***2 |
0.55 | |
|
May |
12 |
5.87 |
4.1 |
0.00 |
0.5 |
0.02 |
30 |
0.32 |
200 |
1.00 |
>5* |
8.50 |
** |
3.82 |
***2 |
1.12 | |
|
June |
12 |
5.95 |
4.1 |
0.00 |
0.5 |
0.03 |
30 |
0.75 |
200 |
1.00 |
>5* |
7.80 |
** |
3.32 |
***2 |
1.49 | |
South Cary Water Reclamation Facility 2008-2009 Annual Performance
|
Flow |
Carbonaceous Biochemical |
Ammonia |
Total Suspended Solids |
Fecal Coliform |
Dissolved Oxygen |
Total Nitrogen |
Total Phosphorus | ||||||||||
|
Month |
Limit |
Actual |
Limit |
Actual |
Limit |
Actual |
Limit |
Actual |
Limit |
Actual |
Required |
Actual |
Limit |
Actual |
Limit |
Actual | |
|
MGD |
MG/L |
MG/L |
MG/L |
#/100ML |
MG/L |
MG/L |
MG/L | ||||||||||
|
July |
12.8 |
4.587 |
5 |
0.0 |
1.0 |
0.05 |
30 |
0.55 |
200 |
2 |
>5* |
7.1 |
** |
1.48 |
***2 |
1.076 | |
|
August |
12.8 |
4.558 |
5 |
0.0 |
1.0 |
0.04 |
30 |
0.33 |
200 |
2 |
>5* |
6.9 |
** |
1.60 |
***2 |
0.665 | |
|
September |
12.8 |
4.727 |
5 |
0.0 |
1.0 |
0.01 |
30 |
0.55 |
200 |
2 |
>5* |
7.0 |
** |
1.56 |
***2 |
0.430 | |
|
October |
12.8 |
3.909 |
5 |
0.0 |
1.0 |
0.00 |
30 |
0.05 |
200 |
1 |
>5* |
7.3 |
** |
1.84 |
***2 |
1.805 | |
|
November |
12.8 |
4.568 |
10 |
0.0 |
2.0 |
0.00 |
30 |
0.00 |
200 |
1 |
>5* |
7.9 |
** |
2.17 |
***2 |
0.242 | |
|
December |
12.8 |
5.157 |
10 |
0.0 |
2.0 |
0.03 |
30 |
0.11 |
200 |
1 |
>5* |
8.3 |
** |
2.05 |
***2 |
0.107 | |
|
January |
12.8 |
5.101 |
10 |
0.0 |
2.0 |
0.02 |
30 |
0.17 |
200 |
1 |
>5* |
8.2 |
** |
2.38 |
***2 |
0.094 | |
|
February |
12.8 |
5.039 |
10 |
0.0 |
2.0 |
0.04 |
30 |
0.12 |
200 |
1 |
>5* |
8.5 |
** |
3.33 |
***2 |
0.494 | |
|
March |
12.8 |
6.264 |
10 |
0.0 |
2.0 |
0.08 |
30 |
0.41 |
200 |
1 |
>5* |
8.3 |
** |
2.22 |
***2 |
0.598 | |
|
April |
12.8 |
5.265 |
5 |
0.0 |
1.0 |
0.03 |
30 |
0.26 |
200 |
1 |
>5* |
7.9 |
** |
1.82 |
***2 |
0.308 | |
|
May |
12.8 |
4.883 |
5 |
0.1 |
1.0 |
0.02 |
30 |
0.78 |
200 |
1 |
>5* |
7.6 |
** |
1.83 |
***2 |
0.402 | |
|
June |
12.8 |
4.923 |
5 |
0.1 |
1.0 |
0.03 |
30 |
0.58 |
200 |
1 |
>5* |
7.6 |
** |
1.75 |
***2 |
0.335 | |
* = Daily Required Level
** = No Limit
*** = Quarterly Limit
_ = Violation
1 = Monthly Average
2 = Geometric Mean
DL = Detection Levels (values below detection levels are reported as zero as allowed by
NC General Statutes and then averaged, with the exception of Fecal Coliform)
Sanitary Sewer Overflows (SSOs) FY 2008-2009
|
July 2008 |
August 2008 |
September 2008 |
October 2008 |
November 2008 |
December 2008 | ||||||
|
Location |
Cause |
Location |
Cause |
Location |
Cause |
Location |
Cause |
Location |
Cause |
Location |
Cause |
|
Kettlebridge Drive |
Grease & Debris |
Buck Jones Road
|
Severe Natural Conditions Severe Natural Conditions
|
Kettlebridge Drive |
Grease & Debris |
SE Maynard Road
|
Debris
|
River Song Place
|
Plug Left by Contractor Grease & Debris Grease Grease & Debris | ||
|
January 2009 |
|
|
|
|
| ||||||
|
Location |
Cause |
Location |
Cause |
Location |
Cause |
Location |
Cause |
Location |
Cause |
Location |
Cause |
|
Vickie Drive |
Roots & Grease |
Tarbert Drive Regency Parkway Triland Way |
Grease & Roots
|
Burgwin Wright Way
|
Debris
|
Fairbanks Road |
Grease & Debris |
Buck Jones Road
|
Severe Natural Conditions
| ||
