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NSF/ANSI 40
Residential Wastewater Treatment Systems

 
Eljen Corporation 
90 Meadow Road 
Windsor, CT 06095 
United States 
800-444-1359 
860-610-0426

Facility : Windsor, CT

Model Number Rated Capacity
Gallons/Day		 Classification

Eljen GSF Denitrification System
DN450 450 Class I
DN600 600 Class I
DN800 800 Class I
DN1000 1000 Class I

GSF Advanced Treatment (AT) Systems[1] [2] [3] [4] [5] [6]
LT-450 450 Class I
SP-450 450 Class I
LT-600 600 Class I
SP-600 600 Class I
LT-750 750 Class I
SP-750 750 Class I
LT-900 900 Class I
SP-900 900 Class I
LT-1050 1050 Class I
SP-1050 1050 Class I
LT-1200 1200 Class I
SP-1200 1200 Class I
LT-1350 1350 Class I
SP-1350 1350 Class I
LT-1500 1500 Class I
SP-1500 1500 Class I 

[1] Prefix SP denotes combined or bottomless discharge. Prefix LT denotes single point
    discharge.
[2]                        Table A, Minimum Sizing and Dimensions
          NSF 40 Class I Certified GSF Advanced Treatment (AT) Systems SP and LT Models
    
    Model Number         Design Daily      Minimum         Minimum        Units
                         Flow          Total Footprint    Tank Size      Required
                                           (ft2)           (gal.)
    SP-450 & LT-450      450               225             1000           18
    SP-600 & LT-600      600               297             1250           24
    SP-750 & LT-750      750               369             1500           30
    SP-900 & LT-900      900               441             2000           36
    SP-1050 & LT-1050    1050              513             2250           42
    SP-1200 & LT-1200    1200              585             2500           48
    SP-1350 & LT-1350    1350              657             2750           54
    SP-1500 & LT-1500    1500              729             3000           60
[3] Maximum loading rate of 3 gallons per square foot onto the Eljen GSF Media, while 
    maintaining a maximum hydraulic loading to the underlying soil system as 2 gallons 
    per square foot per day.  The GSF Advanced Treatment (AT) Systems can be installed in 
    a bed configuration with a minimum spacing along both sides of modules of 6 inches.
    A minimum of 6 inches of Specified Sand is placed at the beginning and end of each row.
[4] Minimum requirement of 6 inches of system sand below the GSF Wastewater Treatment System.
[5] While the GSF Advanced Treatment (AT) Systems includes design specifications similar to
    a dispersal field, the scope of the NSF/ANSI Standard 40 Class I Certification does NOT
    include management methods for the treated effluent discharged from the system.
[6] The GSF Advanced Treatment (AT) Systems are approved with the modules A66 (6 inch
    height), A42 (7 inch height), and B43 (7 inch height, 36 inches wide).


NOTE: This Company distributes, sells, installs, or services their own NSF Certified systems.
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