WQ0042030_facility rating sheet_20201110

WATER POLLUTION CONTROL SYSTEM OPERATORS
CERITh1CATION COMNIISSION
CLASSIFICATION
RATING SHEET FOR WATER POLLUTION CONTROL SYSTEMS
FACILITY INFORMATION:
NAME OF FACILITY:
MAILING ADDRESS:
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COUNTY: �.._._
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CONTACT PERSON: T 6 iv.1 TELEPHONE: ( 1
CC 6° / i I ')
PERMITT NO: _ � I � Check One: NC
ORC: / J/.
TELEPHONE: ( )
RATING INFORMATION: (Before completing (h;s section, please refer to pages 2 '.)
PERMi11ED FLOW: OPC)o `7 `(Y MGD BNR? YES / NO
CHECK CLASSthICATION: WASTEWATER: 1 2 �3
COI S FL I ION: 1 2 3 4
SPRAY IRRIGATION
PHYSICAL/CHEMICAL
SUBSURFACE LAND APPLICATION
GRADE I GRADE II
1111
REGION: (^� ,
DATE: 1 6 (_2. 0
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REGIONAL O»ICE TELEPHONE NUMBER EXT_
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Classification of Biological Water Pollution Control Treatment Systems -
Grade I Biological WPCS
- Septic tank/sand filter systems
- Biological lagoon systems
- Constructed wetlands and associated appurtenances
Grade II Biological WPCS
- Systems that utilize an activated sludge or fixed growth process with a permitted flow
less than or equal to 0 5 miliion gallons per day (mgd)
Grade III Biological WPCS
- Systems that utilize an activated sludge or fixed growth process with a permitted flow
of greater than 0.5 through 2.5 million gallons per day (mgd)
- Grade II systems that are required to achieve biological nutrient reduction *
Grade IV Biological WPCS
- Systems that utilizing an activated sludge or fixed growth process with a permitted flow
of greater than 2 5 million gallons per day (mgd)
- Grade III systems that are required to achieve biological nutrient reduction *
* Biological Nutrient Reduction -
The reduction of total nitrogen or total phosphorous by an activated sludge or fitd growth
process as required by the facilities permit.
Classification of Collection Water Pollution Control Systems:
(whichever provides lowest glade)
Same grade as biological water pollution control system. Grade of system:
Based on population served:
1,500 or Less = Grade I
1,501 to 15,000 = Grade II
15,001 to 50,000 = Grade III
50,001 or more = Grade IV

Classification of Spray Irrigation Water Pollution Control Systems -
Systems which utilize spray irrigation for the reuse or disposal of wasterwater.
These systems include: septic tanks, sand filter, oil/water separators, lagoons,
storage basins, screening, sedimentation. Systems other than those listed above
shall be subject to additional classification.
Classification of Land Application of Residuals Systems:
Systems permitted and dedicated for land application of residuals that are produced by a
water pollution control system or contaminated soils.
Classification of Physical/Chemical Water Pollution Control Treatment Systems:
Grade' Physical/Chemical: Any water pollution control system that utilizes a primarily
physical process to treat wastewater. This classification includes groundwater
remediation systems. **
Grade 11 Physical/Chemical: Any water pollution control system that utilizes a primarily
chemical process to treat wastewater. This classification include.$ reverse osmosis,
electrodialysis, and ultrafilaation systems. **
** Any water pollution control system that utilizes a phyicallchemical process to enhance an
activated sludge or fixed growth process, shall not be subject to additional classification.
Classification of Subsurface Water Pollution Control Systems:
Systems which utilize the soil for subsurface treatment and disposal of wastewater
and/or are required to have a certified operator under 15A NCAC 18 4_1961. ***
*** Any subsurface system that has as part of its treatment process a water pollution control
systems that may be classified under Rules .0302 through .0307 of this section shall be
subject to addional classincatior

Definitions
Activated Sludge - shall mean a biological wastewater treatment process in which predominantly
biodegradable polluntants in wastewater are absorbed, or adsorbed by living aerobic organisms and
bacteria.
Chemical Process - shall mean a wastewater pollution control system process consisting
exclusively of the addition of chemicals to treat wastewater.
Collection System - shall mean a continuous connections of pipelines, conduits, pumping
stations, and other related constructions used to conduct wastewater to the water pollution
control system.
Electrodialysis System - shall mean a system utlizing a selective separation of dissolved solids
process that is based on electrical charge and diffusion through a semipeiuieable membrane.
Physical Process - shall mean any water pollution control system process consisting of
electrodialysis, adsorption, absorption, air stripping, gravimetric sedimentation, floation. and
filtration as a means of treatment.
Reverse Osmosis System - shall mean a system which utiii7.es solutions and semipermable
membranes to separate and treat wastewater.
Ultrafiltration System - shall mean a system which utilizes a membrane filter to remove
pollutants from wastewater.
Water Pollution Control System - shall mean any system for the collection, treatment, or
disposal of wastewater and is classified under the provision of G.S. 90A-37.
Note: Please refer to G.S. 90A-37 for additional information and definitions.