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_ /-j`i_______„...,..,„-------.„-„,., -STATE CERTIFIED / Environmental Health Specialist �'�' EH S 102A6540MARCH 2015infiltrator IiVI-Series Tank 7-: •; , 3uo anc Control Guidance �-,,/ INFILTRATOR' � tanks Robert Goodwin t 7hl k Before you Begin Concrete Deadme> Anchors This document presents recommended buoyancy control methods for Recommended concrete deadmen anchors include filled plastic half pipe, Infiltrator Systems Inc.'s(Infiltrator's)IM-Series tanks.Tank buoyancy precast parking bumpers and traffic barriers,and poured blocks.The control methods must be implemented according to state and/or local weight of the deadmen anchors combined with the weight of soil above regulations,which may supersede the guidelines in this document. them provides buoyancy control when properly secured. Deadmen anchors If unsure of the requirements for a particular site,contact the local are placed at the bottom of the tank excavation on opposite sides of the tank.The deadmen anchors are fastened to each other with tie-down health department or permitting authority. straps placed up and over the tank at the locations specified for each tank model(see Figure 5. This document provides procedures to determine if tank buoyancy control ________— is required based on site conditions.Please obtain the following information 15 in[3 to determine if control is necessary and what methods are applicable: • r min] UseCo n Schedue-fle 40d plastic half pip• _ • Infiltrator tank model Use Schedule 40 PVC pl'st pi: having . • Maximum height of water outside the tank and above the tank botto • y minimum inside led e of 15 i ch 375 m f I or HDPE corrugated pipe having a minimum elevation inside diameter of 18 inches(450 mm)cut in ha i Depthof soil cover over thetank• o co e o etoplengthwise.Fill with concrete havinga minimu o -I / 9 Once tank buoyancy control measures are determined to be requi -nd \\ 7// unit weight of 145 Ibs/fe(2.32 metric tons/m') reinforced with three equally spaced 40 gra•• a method has been selected and implemented,refer to Infiltrator IM 5 P 1/2-inch(13 mm)diameter steel bars. - 61 Tank Installation Instructions and Riser Connection Guidance docume -- lbs/ft(91 kg/m)minimym- i as applicable,for completing the installation. 1 1 i;✓ , Stee 'e.: a-i1 How to Use this Document Concrete parking bumper i 1. Become familiar with the descriptions in the Compatible Devices and 6 in , • p p Use commercially available steel-reinforced [150 mmj r z ; Products section. parkingbumpers with typical p dimensions of 2.Verify that the water level outside the tank is below the outlet pipe 12 inches wide by 6 inches high(300 mm x 150 I I 12In saddle height using Step 1,Tables 1 and 2,and Figure 1. mm).Weight is 58 lbs/foot(86 kg/m)minimum. y (300 mini r 3. Determine if buoyancy control is required using Step 1,Table 2. If buoyancy control is required,proceed to Step 2. Concrete traffic barrier Use the respective table for the tank model from Step 2,Table 2 to , Use commercially available steel-reinforced determine the appropriate buoyancy control methods for the site I. I concrete traffic barrier or equivalent.Typical conditions. l + ';� dimensions include a 24-inch-wide base I I '\ tapering to a 6-inch-wide top,with a height 5. Once a preferred buoyancy control method is selected,follow the I•''. 32 in i of approximately procedures for implementation provided in Step 3. (800 min) _ I 32 inches(600 minx 150 min x 800 mm).Weight j'. �\ is 390 lbs/foot(580 kg/m)minimum. Parts and Supplies , �\ .�� Poured Blocks The parts and supplies necessary are to be purchased separately from the / �• � tank.All parts and supplies are either commercially available or available : Concrete precasters can pour blocks of f through Infiltrator's network of tank distributors.Some parts may require t I ' ' - 1 various dimensions and weights.Blocks are often an affordable option if theysatisfythe fabrication on site usingcommon constructionpractices. p buoyancy L. _ 24 in _ ^� weight requirements for use as buoyancy [600 mm] control(see Table 2 and the Supplemental Compatible Devices and Products Force section of Step 2 for more information). Infiltrator tanks are compatible with the following products for buoyancy • control: Helical Anchors ChanceTM No-Wrench Screw Anchors with ' • Tie-down straps:high-tensile-strength webbing,10,000 lb(4,500 kg) 7��1 minimum capacity,nylon or polyester,with corrosion-resistant hardware. a 6-inch(150 mm)diameter flight,Class 7, or equal.These anchors rely on the shear • Concrete deadmen anchors:concrete-filled plastic half pipe,precast strength of the soil combined with the weight \:t parking bumper,precast traffic barrier,or poured block. of the soil above the anchor flight to provide . ••\ holding strength. Proper installation is to • Helical anchors:Chancele"No-Wrench Screw Anchors with minimum 4 feet(1.2 m)below the bottom of the tank s 6-inch(150 mm)diameter,Class 7 or equal. excavation and to within 5°of alignment ,t` with the webbing load.Determine the \ Tie-Down strapsproper locations for anchor installation to ---- k ensure that tie-down straps will be aligned Straps are commercially available in varying `t*_r'•. properly for each tank model(see Step S:1;lengths and with assorted hardware and } 3:Implementation),and follow anchor tightening options.Pylon or polyester manufacturer installation instructions. strapping with minimum 10,000 lb(4,500 kg)capacity is required for ' �. buoyancy control use with Infiltrator tanks. Place straps up and over the l i ..t tank at specified locations only(see Figure 5).Tighten straps snugly with ' • q ratchet or turnbuckle system to remove all slack and slightly pre-load Typical working torque: 1 • e system.All connections,fittings,and hardware must be corrosion IV Rod 400 ft.Ibs..(1, N m) .esistant or coated with epoxy or other corrosion-resistant materials to I'Rod 1,000 ft.lbs (1356 N•m) , . inhibit deterioration in the subsurface environment. Consider encapsulating t'/°Rod 2,300 ft.lbs.(3,118 N m) s- s. • i such components in heat-shrink tubing or painting on additional corrosion- r resistant coatings prior to burial.