A Comprehensive Process Effluent Management Program

							   AWPS Program Elements

 New   Approval/Management Process
 – NSF-40 Systems
 – Systems Achieving Higher Standards
 Comprehensive   AWPS Rule
 – Influent and Effluent Performance
   Standards
 – Uniform Drainfield Siting and Sizing
 – Generic Design, Installation and O+M
 – Criteria for Site/System Compliance
    Design Criteria, NSF-40,
    TS-I and TS-II Systems


 See RWTS, Experimental, Controlled
  Demonstration, Innovative or Accepted
  System Approval
 Provisions to Sample Influent and
  Effluent While the System is Operational
 Flow Monitoring Method
    – To Measure and and Record Daily
      Wastewater Flows
    – Means to determine past 30 days of Flow
Installation Criteria, NSF-40,
  TS-I and TS-II Systems


 See RWTS, Experimental,
  Controlled Demonstration,
  Innovative or Accepted System
  Approval
 Manufacturer-Authorized Installer
  Required
 See Authorization to Construct
  Operation and Maintenance
 NSF-40, TS-I and TS-II Systems

 Post7/1/06: Manufacturer Shall
 Provide for O+M
  – Provide Renewable Contracts, Min. 1-year
 Pre 7/1/06: Optional renewable year
  contracts
 OPs after 7/1/06: Owner Shall Provide
  Contract:
  – With Manufacturer/Manufacturer’s
     System Performance
 NSF-40, TS-I and TS-II Systems
 Annual Visual Inspection
  per Manufacture’s Procedure
 7-day and 30-day wastewater flow
 Influent/Effluent Sampling
    – Quarterly for Controlled Demonstration
    – Annually for RWTS/Innovative for all parameters
       May   reduce by 50 percent after 2 years for TS-I and TS-
       II
    – Semi-annually for systems >1500-3000 gpd
   No Routine Sampling after Accepted Status
    Granted
     Site Compliance Criteria

 Passes Annual Visual Inspection (VIP)
 Flow Criteria
  o 7-day flow ≤ 1.3 x design daily flow, and
  o 30-day flow ≤ design daily flow
 Influent   Wastewater Below Threshold
  (grab)
 Effluent Sample Criteria (grab sample)
  o No parameter value > 2 x standard (fecal
    2.5 x)
  System Compliance Criteria


 Meanof All Data ≤ Designated
 Standard
≤ 20 Percent of Sites Exceed
 Standard for one or more
 parameters
≤ 10 Percent of Sites Exceed 2 x
 Standard (fecal 2.5 x) for one or
 more parameters
       700
                                                      AdvantexNSF
       600                                            PurafloNSF
                                                      EcofloNSF
                                                      PeatsNC2006
       500                                            MASSTCetv

       400
mg/l




       300


       200


       100


         0
             0   10   20   30     40    50   60      70   80   90   100
                                Percent exceedence

                           INFLUENT BOD
   150
   140                                           AdvantexNSF
   130                                           EcoFloNSF
   120                                           NC2006InfluentTKN
   110                                           NCnonCoastTKNin
                                                 MASSTCetv
   100
    90
mg/l




    80
    70
    60
    50
    40
    30
    20
    10
     0
         0   10   20   30     40    50   60      70    80    90      100
                            Percent exceedence
                               INFLUENT TKN
       450
       400
       350
       300
       250
mg/L




       200
       150
       100
       50
        0    1   11   21    31   41   51   61     71      81       91   101   111   121   131   141   151
                                                2005 Sample Site




                           Effluent vs Influent
   NC 2006 Effluent Data, PEATS
                           Model # 1                         Model # 2
    Measure
                     BOD               NH3             BOD               NH3
                                              (mg/l)

     Mean        12.4 (222)*      8.0 (216)        14 (116)         10 (113)
    20%               17               13              17                16
 exceedence
    10%               30               22              30                25
 exceedence
*Number in (parentheses) is number of samples
              NC 2006 Effluent Data,
                    TEXTILE
                    BOD          NH3            TSS     TN       FECAL
    Measure
                                                                  cols/
                                       (mg/l)
                                                                 100 ml

    Mean
(geomean for      4.7(73)*    6.2 (77)      6.7(67)   23.8(64)   79(74)
    fecal)
    20%              7.5        6.95            9.6     31       2200
 exceedence
    10%              11          14             16      45       6000
 exceedence
*Number in (parentheses) is number of samples
   2006 Site/System Compliance:
Effluent Performance-vs-Standards

Measure              Peat # 1*           Peat # 2*           Textile**


                 P               F   P               F   P               F
   1x           123          74      60          37      34          17
Standard                   (38%)               (38%)               (33%)
   2x           162          38      88          14      44          8
Standard                   (19%)               (14%)               (15%)
*Based upon site’s compliance with TS-I Standards
**Based upon site’s compliance with TS-II Standards
      2006 Site/System Compliance:
           Visual Inspection Protocol
           (data from single county only)


                                               System Age
System         All       1-2 yrs.     3 yrs.      4 yrs.    5 yrs.   6+ yrs.
 Type
                                    % Non-Compliant
Peat # 1    23% (79)*        0          0         13%       40%       50%
Peat # 2    17%(111)       12%        35%         17%       19%
*Number in (parentheses) total number of sites
       120


       100                                            480 GPD or Less
                                                      >480 GPD
        80
mg/l




        60


        40


        20


         0
             0   10    20   30     40    50   60      70     80    90   100
                                 Percent exceedence
                      PEAT MODEL # 1 BOD
   160
                                            0-2 Yrs. Old
   140                                      3 Yrs. Old
                                            5 Yrs. Old
   120

   100
mg/l




       80

       60

       40

       20

       0
            0   20   40       60       80       100        120
                      Percent exceedence
                PEAT MODEL # 2 BOD (by
       70


       60
                                                      1-2 Yrs. Old
                                                      3-4 Yrs. Old
       50
                                                      5-6+ Yrs. Old

       40
mg/l




       30


       20


       10


       0
            0   10    20   30     40    50   60      70   80         90   100
                                Percent exceedence
                     PEAT MODEL # 1 NH3 (by
       Non-Compliance Actions
    Advanced Pretreatment Systems
   ORC informs Owner of Non-Compliance
    – Flow > design daily flow, or
    – Influent exceeds standards, or
    – Maintenance/repairs needed
   LHD issues Owner at Individual Site NOV
    – Visual Inspections Determines Non-Compliance, or
    – Exceeds Wastewater Flow or Effluent Standards
 State issues Manufacturer NOV when system
  non-compliant
 LHD issues Manufacturer Intent to Suspend CAs
    – 10 percent malfunctioning or violating effluent