City of Raleigh Prsrt Std
Public Utilities Department U. S. Postage
P. O. Box 590 PAID
Raleigh, N. C. 27602 Raleigh, NC
Permit # 813
Grease continues to be a major cause of sanitary sewer overflows in Raleigh’s
sewer system and you can help the City of Raleigh reduce the number of
overflows by following these simple steps.
o Collect grease, fats and oils from cooking in a container and dispose of
it in the garbage instead of pouring it down the drain.
o Place a wastebasket in each bathroom for the disposal of solid waste,
disposable diapers, condoms, and personal hygiene products. These
products DO NOT belong in the sewer system. Never use a toilet as a
o Place food scraps in the garbage for disposal with your household solid
waste. Even better, start a compost pile using your food scraps instead Wastewater systems have evolved considerably from early systems in the 1800’s or before. Although the purpose has
of disposing of them down the kitchen sink. always been to collect human waste and to transport it away from urban areas in order to protect human health, early
systems merely transported the wastewater to a nearby stream, where it was discharged. Today, wastewater systems
Wastewater collection systems are designed to handle three things – used water, human body waste and toilet paper. It is very important are not only expected to protect public health, but to protect the environment as well. In 1972, the U.S. Congress
to keep all foreign materials, such as grease and other household debris from entering the system, as these can cause blockages. Most sewer passed landmark legislation entitled the “Clean Water Act” which ensured environmental protection as a performance
backups occur between the house and the City’s sewer main. The property owner is responsible for correcting this problem. benchmark for all wastewater systems. Long before the passage of this act, and every day since, the protection of public
health and the environment have been the operating standard of the City of Raleigh’s wastewater system.
Property owners are responsible for the care and maintenance of service lines from their homes or businesses to the sanitary sewer mains in the
street. The Raleigh City Code also prohibits property owners from planting trees, shrubs and other vegetation on sewer lines and easements, This report provides information about the performance of the City’s four (4) wastewater treatment plants (WWTP):
covering manholes, erecting fences or permanent structures on sewer lines and easements, or damaging sewer lines in any manner. These the Neuse River WWTP, the Wrenn Road WWTP, the Smith Creek WWTP, the Little Creek WWTP and the City’s
conflicts may not contribute directly to a sanitary sewer overflow, but they could hinder access and/or response time in correcting a sewer wastewater collection system for the period of July 1, 2008 – June 30, 2009. This report is required by the State of
backup. North Carolina. All of the information contained in this report is accurate and complete.
Be aware of whether you may be vulnerable to a back-up of City sewage into your home or business. In some instances a serious risk of back- To learn even more about the City’s wastewater collection system or the wastewater treatment plants, please contact the
up exists if any points of entry into the plumbing system, such as floor drains, toilets, etc., are located at a level that is lower than the elevation City of Raleigh Public Utilities Department at (919) 857-4540 or visit the City’s web site – www.raleighnc.gov.
of the next upstream manhole. In such cases, the sewer may back-up into the building if there is an obstruction in the City main below that
service location. This problem can be avoided with the proper installation and maintenance of a sewer backflow valve. A backflow valve will J. Russell Allen
allow the sewage to flow in one direction only, and will prevent the overflowing of sewage in buildings or residences. It is the home builder/
property owner’s responsibility to determine whether this situation exists. If you are vulnerable you should install a sewer backwater valve
and/or maintain adequate home insurance. To obtain an informational brochure or schedule a free evaluation of your home or business City Manager
plumbing, call (919) 857-4540.
REPORT SANITARY SEWER OVERFLOWS (SSOs) AND WATER MAIN BREAKS: Éste folleto contiene información importante acerca del sistema de alcantarillado sanitario de la Ciudad de
Please call the City of Raleigh Public Utilities Department to report a sanitary sewer backup or overflow or a water main break. To report a Raleigh. Si tiene preguntas acerca del sistema, llame al Departamento de Servicios Públicos al
sewer backup/overflow or main break during normal business hours (M-F, 7:30 a.m. – 4:00 p.m.) please call (919) 250-2737. When calling (919) 857-4540 durante las horas de trabajo.
at times other than normal business hours, please dial the after-hours emergency number, (919) 829-1930. Thanks for your help!
WASTEWATER COLLECTION SYSTEM Annual Program Summary
Wastewater collection in Raleigh dates from 1890, when the City built a
system of sewers that carried wastewater to discharge points on the Walnut The biosolids program at the NRWWTP is continuing to improve through the use of an EMS approach to managing the program. Some of
Creek and Crabtree Creek tributaries to the Neuse River. The Walnut the highlights of this year’s program include:
Creek WWTP, the City’s first wastewater treatment plant, was constructed
Regulatory Compliance: There were zero regulatory violations for the NRWWTP biosolids management program in 2008. The
in 1955. In 1976, the Neuse River WWTP was completed to replace the
number of pretreatment notice of violations (NOVs) issued to industrial customers was reduced from 41 in 2006 to 18 in 2008.
Walnut Creek Plant. In addition to the Neuse River WWTP the City
utilizes three other wastewater plants for wastewater treatment. Those
Environmental Performance: 100% of the biosolids produced at the NRWWTP were beneficially reused. Demand for biosolids
products continues to be greater than production.
plants include Wrenn Road WWTP, Smith Creek WWTP and Little Creek
WWTP. Quality Management Practices: All Class A products produced were consistently below 50% of the ceiling concentrations for
exceptional quality biosolids per the federal 503 regulations for biosolids. Production of various biosolids products continues to be in line
The City of Raleigh provides wastewater collection and treatment services with customer demand projections. This helps alleviate the need for on-site storage of biosolids product. Finalized Biosolids Master Plan and
for areas within the City’s corporate limits and many areas in the City’s received partial funding for some of the projects in current Capital Improvement Programs (CIP) budget.
Extraterritorial Jurisdictional area (ETJ). The City also provides wastewater Relations with Interested Parties: While the number of stakeholders in attendance at the annual stakeholders meeting in July 2008
collection and treatment services for the merger areas which include Garner, was not as large as the previous year, several new faces were found in the audience. The annual stakeholders meeting, the periodic newsletters
Rolesville, Wake Forest, Knightdale, Wendell and Zebulon. Temporary and the City’s website continue to keep stakeholders and interested parties informed about program happenings. Much positive feedback was
contracts are also in place to treat specific amounts of wastewater from the Towns of Apex, Clayton, Middlesex and the County of Johnston. received from stakeholders and interested parties on the efforts of the NRWWTP staff to keep them informed and up-to-date. Stakeholder’s
categorized the NRWWTP as a “good neighbor”.
The City’s wastewater collection system functions primarily by gravity flow and it consists of approximately 2,300 miles of pipeline ranging in Continual Improvement: The internal and interim audit processes used in the management system continue to be a vital tool
diameter from six inches to six feet. Every day an average of 44 million gallons per day (MGD) of wastewater, for this reporting period, travels in identifying opportunities for improvement to the system. The new training facilities at the NRWWTP provide additional on-site
through the City’s sanitary sewer collection system. opportunities for training of staff. High efficiency blowers have been installed to reduce energy consumption. Two biosolids loading hoppers
have been installed reducing truck loading time from several hours to just minutes.
The sewer pipes of the collection system are connected by a series of sewer manholes needed for maintenance of the collection system. Some Contractor Performance: There were zero regulatory violations for the contractors working in our biosolids management system.
manholes are flush with the pavement, some are located one foot above the ground and sometimes higher due to flood plain conditions and Contractors continue to follow the policies and procedures outlined in their service agreements as they relate to our biosolids EMS at
some are located above ground (aerial mains), particularly across streams. Ventilation is necessary at most manholes and is provided through NRWWTP.
vent holes in the lids or separate vent stacks. Although the wastewater collection system functions primarily by gravity, 115 public pump Goals and Objectives: In 2008 there were four voluntary goals set for the biosolids management system, each containing several sub-goals
stations are necessary to keep the wastewater flowing to the wastewater treatment plant. or targets. 85% of those goals were achieved. Accomplishments include: produced 100% non-restricted, exceptional quality Class A product,
received partial funding for some of the selected options in the Biosolids Master Plan, upgraded several software packages for data collection
SANITARY SEWER OVERFLOWS (SSOs) and storage and maintained certification with the National Biosolids Partnership. However, the goal of increasing stakeholder participation
at the annual stakeholder’s meeting over 2007 levels was not met. Several new faces attended the meeting but the overall participation
Sanitary sewer overflows (SSOs) occur when problems in the system cause sewage to come out of manhole covers, service cleanouts or was decreased from the previous year. Another goal not met was to reduce the number of chain of custody errors by 20%. While the total
plumbing fixtures. number of chain of custody errors was reduced over 2007 levels, it was not reduced
by 20%. Work will continue in this effort and additional training on chain of
During the fiscal year from July 1, 2008 through June 30, 2009, the City of Raleigh experienced 56 SSOs that were estimated at a volume of custody protocol will be provided to staff. The other goal that was not met was to
1,000 gallons or greater and that reached surface waters of the State. This is approximately a 14% increase over the SSOs experienced from implement and utilize a fully functional maintenance activity tracking system by
the previous fiscal year. The increased number of overflows is due to a restructuring of how the SSOs are reported. Still, the City continues to June of 2008. Due to some conflicts with the software package and the training
pursue its goal to reduce the number that occur each year and is spending millions of dollars in that effort. In order to reduce the number of schedule, the system was eventually implemented for corrective maintenance
SSOs, the City also needs the help of each sewer customer by using the sewer system responsibly (see Customer Responsibility section). activities but was not completed by the June deadline.
Heavy rains were the leading cause of SSOs at 32% with debris in the collection system following close behind, accounting for approximately Going Green
30% of the overflows. Debris can be such items as rags, flushable wipes, sticks, rocks, feminine hygiene products, etc., all of which are illegal to
discharge into the sanitary sewer system. Excessive grease, illegally discharged into the sewer collection system, was the third largest cause of The U. S. Green Building Council (USGBC) has awarded the City of Raleigh its first ever
SSOs at approximately 21%, as shown in the chart. The City of Raleigh has an ongoing, aggressive program to educate residents and business Silver LEED certification for a City-owned building, the new Training and Administration
owners regarding the need to keep grease and other inappropriate materials out of the sewer system, as well as a comprehensive preventive Building at the Neuse River Wastewater Treatment Plant.
LEED, or Leadership in Energy and Environmental Design, is granted by USGBC for
meeting high standards of environmentally sustainable construction.
$50 SSO REWARD PROGRAM
The City of Raleigh has implemented an SSO Reporting Reward Program. In Sunflower’s Fueling the Future
this program, concerned citizens who are the first to notify the City of an SSO
This year approximately 50 acres are planted with sunflowers to harvest the seeds for the oil
that they observe are rewarded monetarily with a $50 check. By promptly they produce. The oil can then be processed at a facility to produce bio-diesel.
reporting the overflow, the City is able to minimize the impact of the overflow
to the environment. Although the City has staff that inspects the sanitary sewer
collection system every day, with 2,300 miles of sewer mains in the City’s service
area to maintain, the City certainly needs the help of customers and citizens to
find and report these problems when they occur.
TREATMENT FROM START TO FINISH REUSE PROGRAM
The Neuse River Wastewater Treatment Plant, Smith Creek Wastewater “Reuse” or “Reclaimed” water [used interchangeably] is defined in North Carolina as effluent from a wastewater treatment plant that is
Treatment Plant, and the Little Creek Wastewater Treatment Plant treated to an exceptionally high level. Reuse water has many benefits which include preservation of potable water by provision of reuse
process wastewater for approximately 175,000 metered customers and a water for irrigation, process cooling water, construction, dust control, ornamental fountains , indoor toilet flush water, fire protection and
service population of approximately 435,000. the reduction of nutrients in receiving waters.
For NPDES permitted wastewater treatment facilities (Neuse River Wrenn Road Spray Irrigation Wastewater Treatment Plant
WWTP, Smith Creek WWTP and Little Creek WWTP), wastewater
is treated both physically and biologically. The first stage of treatment The Wrenn Road Spray Irrigation Wastewater Treatment Facility is
is referred to as primary treatment and is a physical process to remove a one (1) MGD non-discharge system that utilizes spray irrigation
debris, sand, heavy organic solids and grease. The second stage of to agricultural land and forests as the means for disposal (permit
treatment is a biological process referred to as “activated sludge” in which WQ0002708). During this fiscal report year, approximately 61 million
microorganisms convert ammonia-nitrogen to nitrogen gas through the gallons were spray irrigated at this facility. This facility had no violations
process of nitrification/denitrification. The microorganisms are then during this reporting period. The Wrenn Road Facility is currently
separated from the treated water by secondary clarification and returned being decommissioned and a study is underway to evaluate this site for
to the biological process. The clarified water is then filtered by sand filters consideration to receive industrial process wastewater from the D.E.
and disinfected by Ultra Violet disinfection before being metered and returned to Benton Water Treatment Plant.
the Neuse River.
Reuse Distribution System
WASTEWATER TREATMENT FACILITIES
The Neuse River WWTP uses reuse water for irrigation of the
Neuse River Wastewater Treatment Plant agricultural land that serves the facility. From July 1, 2008 to June 30, 2009, 9,405,911 gallons of reuse water was irrigated on cropland.
The Neuse River Wastewater Treatment Plant was designed to serve the City of Raleigh and surrounding communities. The plant is located in The construction of the second phase of expansion of the irrigation system is complete, and construction of the third phase is expected this
Wake County, approximately 12 miles southeast of Raleigh, near the Johnston County line and operates with a capacity of 60 MGD. fiscal year. The reuse distribution system has bulk reuse water loading stations at the E. M. Johnson, Neuse River, Little Creek and Smith
Creek water and wastewater treatment plants. “Bulk” distribution of reuse water allows certified landscape contractors or citizens to obtain
The City of Raleigh’s Neuse River Waste Water Treatment Plant received no violations from the Division of Water Quality for the treatment reclaimed water at no cost if that person will transport and responsibly use the reclaimed water for approved purposes. The City also operates
of over 15 billion gallons of water during the past fiscal year thus earning the plant a Platinum II Award issued by the National Association of the Zebulon service area reclaimed water distribution system. The Zebulon system takes treated effluent from the Little Creek WWTP
Clean Water Agencies for six consecutive years of excellent performance. Performance is measured against the NPDES permit #NC0029033. and provides this product to five permitted customers through 4,400 linear feet of distribution pipe and a 250,000 gallon elevated storage
The City is proceeding with a project to expand the plant’s capacity from 60 million gallons per day to 75 million gallons per day. system. Construction was completed this year on the 17,000 foot reuse water line extension in the Zebulon service area as part of the system
Smith Creek Wastewater Treatment Plant
The Smith Creek Wastewater Treatment Plant was designed to serve the Town of Wake Forest and was transferred to the City of Raleigh on
July 1, 2005. The plant is located in Wake Forest, approximately 14 miles north of Raleigh and operates with a capacity of 2.4 MGD. BIOSOLIDS PROGRAM
The Smith Creek Wastewater Treatment Plant did not experience any NPDES permit (NC0030759) performance violations during the past
Reuse of biosolids and wastewater effluent includes bio-solids land application on both public and privately owned land, the beneficial reuse
fiscal year, while treating 418 million gallons of wastewater. As a result of the SCWWTP experiencing 100% compliance, it received the Gold
of wastewater by land irrigation, and close monitoring of product constituents and environmental conditions through the utilization of
Award issued by the National Association of Clean Water Agencies for the fourth straight year.
extensive pretreatment methodologies.
Little Creek Wastewater Treatment Plant
Putting Biosolids To Work
The Little Creek Wastewater Treatment Plant was designed to serve the Town of Zebulon and was transferred to the City of Raleigh on
October 1, 2006. The plant is located in Zebulon, approximately 24 miles east of Raleigh and operates with a capacity of 1.85 MGD. Biosolids produced by the Neuse River, Little Creek and Smith Creek Wastewater Treatment Plants take the form of two products for
beneficial reuse. Process sludge is thickened and digested into a Class B biosolids product where it serves as a fertilizer for agricultural crops
The Little Creek Wastewater Treatment Plant did not experience any when applied to the City’s 1000 acre farm or to
NPDES permit (NC0030759) performance violations during the past privately owned farmland. The agricultural crops,
fiscal year, while treating 229 million gallons of wastewater. As a result are then harvested and sold for non-consumptive
of the LCWWTP experiencing 100% compliance, it received the Gold uses such as animal feed or bio-fuel production.
Award issued by the National Association of Clean Water Agencies for
the third straight year. The production of Class A biosolids is also
utilized. In this process, sludge is dewatered with
The table on the left compares the permit limits and performance belt presses and blended with lime kiln dust to
history of the wastewater treatment plants for this past fiscal year. produce a Class A biosolids by raising the product
pH and temperature. This material is marketed
under the name “Raleigh Plus” and is distributed
as a soil amendment to agricultural and institutional properties
in the region. It is also available as a liming agent with supplemental nutrients. SSO LOCATION AND CAUSES March 2009
Interested customers should call (919) 662-5700 Monday – Friday, 8:00 a.m. to Total: 586,700 gallons
4:00 p.m. July 2008 Marlow Rd. Heavy Rains
Total: 7,200 gallons Anderson Dr. Heavy Rains
The biosolids program also utilizes the services of a private firm that receives Slatestone Ct. Grease Chamberlain St. Debris
dewatered primary sludge and produces a Class A biosolids product in the form Dangerfield Dr. Grease
of compost. Once regulatory requirements are met, the compost is distributed Hillsborough St. Grease
to the public as a soil amendment and mulch. Stadium Dr. (Wake Forest) Structural Damage
Total: 3,750 gallons
Glenwood Ave. Structural Damage
Hillandale Dr. & Shadybrook Dr. Debris
On December 19, 2006, the NRWWTP Environmental Management System Sunnybrook Rd. Grease
Marlow Rd. Debris
(EMS) was verified by an independent audit firm and became the 14th agency
in the country and first in the southeast region to become a National Biosolids
September 2008 April 2009
Partnership certified agency, making the biosolids program at the plant an Total: 132,400 gallons
Total: 2,736,570 gallons
accredited model program. In January of 2009, the NRWWTP retained its Woods of North Bend Dr. Debris
Bridford Pl. Grease
prestigious Platinum Level certification after successfully completing the interim Dixon Dr. Grease
Lorraine Rd. & Medlin Dr. Debris
audit requirements for maintaining EMS certification. “The Platinum Level designation represents Hwy. 70W & Lynn Rd. Debris
S. Saunders St. Heavy Rains
the highest achievement of biosolids management and environmental stewardship.” S. White St. & Holding Ave. Roots
Glenwood Ave. Heavy Rains
Sunnybrook Rd. Heavy Rains
The results of this annual interim audit, as well as the results from the initial verification audit, are Gorman St. and I-440 Beltline Debris
Capital Blvd. Heavy Rains
available for viewing on the City’s website, www.raleighnc.gov. Further information concerning Dominion Blvd. Debris
Rothgebb Dr. Heavy Rains
the reuse or the biosolids programs can be obtained by calling 919-662-5700. Anderson Dr. Heavy Rains
Biosolids Program Annual Report Marlow Rd. Heavy Rains May 2009
Bent Tree Pump Station Heavy Rains Total: 1,644,000 gallons
Bent Tree Pump Station Heavy Rains Graduate Ct. Debris
Hammond Rd. & Rush St. Structural Damage
Ligon Mill Pump Station Structural Damage
Rhine Beck Ct. Vandalism
Total: 113,800 gallons
Shanda Dr. Grease
2008 Biosolids Production June 2009
Beacon Hills Pump Station Structural Damage
The chart to the left demonstrates the amount of biosolids Total: 1,023,475 gallons
Wakefield Plantation Dr. Debris
produced by the NRWWTP for 2008. The majority of the E. Wait Ave. (Wake Forest) Debris
(west of Honey Church)
product produced is a Class A fertilizer product, which is the S. Saunders St. Heavy Rains
highest quality of biosolids that can be produced. Grantland Dr. Heavy Rains
Sunnybrook Rd. Heavy Rains
Total: 83,400 gallons
Greenbrier Pump Station (Garner) Heavy Rains
Blue Bird Ct. Roots
Rosemoor Pump Station (Garner) Heavy Rains
Forest Pines Dr. Debris
Maxwell Pump Station (Garner) Heavy Rains
Creech Rd. Heavy Rains
Total: 182,400 gallons
Courtney Ln. Debris
Marlow Rd. Debris
Edwards Mill Rd. Grease
2008 Biosolids Distribution
This chart demonstrates the amount of biosolids distributed January 2009
from the NRWWTP for calendar year 2008. All the biosolids Total: 987,600 gallons
produced at the NRWWTP are beneficially reused Junction Blvd. Grease
and distributed, leaving no significant storage of biosolids on- Lake Wheeler Rd. & I-40 Grease
site. Raleigh Blvd. Roots
Weir Way Debris
Total: 35,400 gallons
Greywood Dr. Grease
Banbury Rd. Debris
Bridgeport Dr. Debris
Lake Wheeler Rd. Grease