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HomeMy WebLinkAbout2020-09-15 Dewatering Plan So. Entrance Relocation C06ado K%- INC M.J. Cataldo, Inc. ■ P. O. Box 1343 ■ Littleton, MA ■ 01460■ 978.486.4331 tel. LETTER OF TRANSMITTAL TO: ANDREW LEONARD DATE: 3/5/21 TRANS NO: BS 027 A.T.LEONARD&ASSOCIATES PROJECT: Brooks School 675 JONES HILL ROAD ATTN: ASHBY,MA 01845 RE: South Entrance—De-Watering Plan WE ARE SENDING YOU VIA EMAIL items: ❑ Prints ❑ Invoices ❑ Shop Drawings ❑ Specifications ❑ Reports ❑RFI ® Copy of Letter/Memo ❑ Other COPIES DATE DESCRIPTION 1 3/5/21 27-1:De-Watering Plan THESE ARE TRANSMITTED: ® For approval ❑For your use ❑ As requested ❑For Review&Comment REMARKS: Andrew, Please seethe attached submittal BS 027 for the South Entrance De-Watering Thanks, Kevin Copy to: Elizabeth Martin(Brooks) John Galanis(Brooks) Brendan Carey(ATL) MJ CATALDO,INC. Anthony Cleaves(W&B Civil) Jean Enright(Town of North Andover) p Gam, H( mt Amy Maxner(Town of North Andover) Kevin Hunt Cdo "'.W a6a o M.J. Cataldo, Inc. De-Watering Plan Brooks School -South Entrance M.J. Cataldo, Inc. has developed the following plan for dewatering activities during the construction of the South Entrance.This plan will be adhered to strictly, but changes and adaptations to this plan may be necessary and will be documented as such needs arise. It is expected that De-Watering will be needed for the installation of the WQU-1 and CB-1. Bottom of excavation is deepest at the these two structures. Excavation will be approximately 8 feet deep (approx. elev 182.50) at these locations. M.J. Cataldo, Inc. will use a series of 2" Electric Submersible pumps (BJM Pump model R400) installed vertical in perforated 12" HDPE pipe and stone.These pumps will be run by a portable generator and can be expected to run continually during the excavation and backfill of these structures.The pumps will be set to at least 1' below bottom of excavation.The pumps will discharge through a hose to the area designated for dewatering near the excavation. (Per Attached)The discharge hoses will terminate into a 10'x10' Dirtbag, by ACF environmental (Per Attached), which will be surrounded by Filtrexx Siltsoxx.The filtered water will be discharged through the dirt bag and bleed out to a stabilized area surrounded by Filtrexx Siltsoxx. PO BOX 1343 - LITTLETON,NIA 01460 - 978-486-4331 - WWW.MJCATAT.DO.COM Grading Legend N E Leonard&A«ooat,, r Utility Notes \Fi' `i� i ,`, t� r , Brooks o0 E t B 9 k School �-..7�� ,�n a�a�«'pis ei,�F IS 11 r Campus \ m „ EE Improvements: South n ranee 1 o F' o,�a" , admission Arrival, 3ain Street, _ 6. /✓ Admission Building �5 a �oe=g�za s t t i� Fx f 1. l °Y n ari,rtm�� ie tx cF�a cis&cet �f � d South Entrance- hdpj Grading& UrihtYPlan % f i � z / F x � n a,it St �- a = - 0 5 Brooks South Entrance De-Watering Plan L1.03 3/30/2020 BJMPumps Visit our website: www.flowsolutions.com Supersedes TECHNICAL DATA MODEL R400-115 C!co U 19 BJM Pumps® SUBMERSIBLE PUMP-CAST IRON 115V GENERAL DATA MAX. FLOW: GPM (L/min) 66 GPM (249 L/min) MAX. HEAD: ft(m) 35' (10.6 m) MAX. SUBMERSION DEPTH: ft(m) 65' (20m) or limited to length of power cord, Consult factory for deeper depths PUMP TYPE TOP DISCHARGE, DEWATERING SOLID SIZE: in (mm) 1/8" (3.1 mm) STRAINER OPENING 0.1875" (4.7 mm) PUMP DOWN WATER LEVEL: in (mm) 2.25" (57 mm) IMPELLER DIAMETER: in mm 3.75" 95 mm DISCHARGE SIZE 2" NPT-MALE PUMP WEIGHT, without cable: Ibs k 29 Ibs 13.2 k SHIPPING WEIGHT: Ibs k 33 Ibs 15 k CONSTRUCTION/MATERIAL DATA MECHANICAL SEAL- UPPER CARBON/CERAMIC MECHANICAL SEAL- LOWER SILICON CARBIDE/SILICON CARBIDE OUTER CASING 304 SS MOTOR CASING 304 SS PUMP VOLUTE CAST IRON IMPELLER- MULTI VANE CAST IRON STRAINER 304 SS BOTTOM PLATE RUBBER COATED CAST IRON LIPSEAL &O-RINGS BUNA-N ROTOR SHAFT 304 SS EXTERNAL HARDWARE 304 SS QTY. OIL IN SEAL CHAMBER 1.35 U.S. FL. OZ. 40 C.C. BALL BEARING: PERM. LUBE. UPPER 6201 BALL BEARING: PERM. LUBE. LOWER 6201 ELECTRICAL /MOTOR DATA MOTOR: TYPE, RATING HP SUBMERSIBLE, 0.5 CONTINUOUS DUTY MOTOR RPM 3450 MOTOR INSULATION CLASS F MOTOR SERVICE FACTOR 1.1 VOLTAGE 115, 1 PH, 60 Hz CURRENT F.L.A. 6 LOCKED ROTOR CURRENT (LRA) 22 MOTOR PROTECTION THERMAL BREAKER POWER CORD: GAGE; LENGTH A.W.G. 16/3; 33' 10 m), STOW MAXIMUM LIQUID TEMPERATURE 104°F (40°C) 1-Available in other voltages (and in 50 Hz). ©2020 Industrial Flow Solutions Operating, LLC. All rights reserved. 104 John W Murphy Drive New Haven, CT. 0613, USA Tel: (860)399-5937 - Fax: (860)399-7784 REFER TO REVERSE SIDE FOR PUMP PERFORMANCE CURVES SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE w BJMPumps MODEL: R400 W a m U- ( _ 00 18 a 60 60 MOTOR: 0.5 HP, 1 PH, 60 Hz PUMP EFF. SPEED: 3450 RPM IMPELLER: 3.75" DIA. 15 DISCHARGE SIZE: 2" NPT MALE 50 50 12 - HEAD w 40 - 40 U_ Q g z 30 30 0 H 6 20 20 B.H.P. 3 10 10 �0.5 0 0 - 0 —0 U.S. GALLONS 0 25 50 75 100 T 125 150 LITERS I 1 1 0 50 100 150 200 250 300 350 400 450 500 3/30/2020 supersedes priors FLOW RATE PER MINUTE SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE ©2020 Industrial Flow Solutions Operating, LLC.All rights reserved. rl Retains the silt, sand and fines while allowing the filtered water to drain out into the drainage system. Protect the environment effectively and economically with the ACF Dirtbag°! The ACF Dirtbag° collects sand, silt and fines, while regulating that enters streams, surrounding property and storm sewers. ACF can make custom Dirtbags°to suit your needs. ACF Environmental manufactures N�' the Dirtbag° using a variety of woven and nonwoven geotextile fabrics. We can produce any size, dimension, or fabric weight requested. � Each standard Dirtbag° has a fill spout large enough to accommodate a 4" discharge hose. Straps are attached to secure the hose and prevent pumped water from escaping without being filtered. To increase the efficiency of filtration, place the bag on an aggregate or haybale bed to maximize water flow through the surface area of the bag. Dirtbag° is full when it no longer can efficiently filter sediment or pass water at a reasonable rate. Flow and removal rates will vary depending on the size of Dirtbag°, the type and amount of sediment discharged into Dirtbag°, the type of surface, rock or other substance under the bag. Under most circumstances Dirtbag°will accommodate flow rates of 500 gallons per ' � minute. Use of excessive flow rates or overfilling Dirtbag°with sediment will cause ruptures of the bags or failure of the hose attachment straps. Dirtbag° must be monitored during use. Dirtbag° and Dirtbag® HD have been tested under ASTM D-7880 and ASTM D-7701,which are Standard Test Methods for Determining Flowu°u Rate of Water and Suspended Solids Retention from a Closed Geosyn- thetic Bag. Testing summary available upon request. DirtBag® ag°HD B Standard Dirtbag® Features Dirtbag®HD ur - Higher flow rate - Higher stre - Higher removal rate - More effective - Smaller openings - susceptible to rupture ENVIRONMENTAL as STANDARD DIRTBAGO DIRTBAGIIxo; Standard Sizes: Sta rd Sizes: 06womm5r 3' x 4' x 10 E"=rMMW 6' x 20' 10' x 10' 12, x 12.5' M�5�4�5r 12' x 18.75' Custom Sizes available upon request. Custom Sizes availab pon reques Geotextile Properties - 8oz: Nonwoven Geotextile P ties - Woven Property Test Method Units Test Results Property Test thod Units Test Results Weight ASTM D-3776 oz/yd 8 Weight D-3776 /yd 6.13 Grab Tensile ASTM D-4632 lbs. 205 Grab Tensile STM D-4632 lbs. 168x300 CBR Puncture ASTM D-6241 lbs. 525 CBR Punctur ASTM D-6241 lbs. 901 Flow Rate ASTM D-4491 gal/min/ftz 90 Flow Rat ASTM D-4491 gal/min/ 66.2 Permittivity ASTM D-4491 sec.-' 1.4 Permi ity ASTM D-4491 sec.-' .862 UV Resistant ASTM D-4355 % 70 UV sistant ASTM D-4355 % AOS% ASTM D-4751 US Sieve 80 S% ASTM D-4751 US Sieve 30 Dirtbag°Test Results Standard Property Test Method Units Dirtbag Results Results Average Removal Efficiency ASTM D-7701 % 99.6 95.3 Residual Low-Head ASTM D-7701 gpm <0.001 0.004 CBR Puncture ASTM D-6241 lbs. 97.98 93.29 Dirtbag°Seam Test Results(under ASTM D4884) NonWoven Dirtbag Woven Dirtbag Maximum Load 786 lbs Maximum Load 934lbs Maximum Strength 1178 Ib/ft Maximum Strength 1402 Ib/ft NOTE: Each test result was derived from a material failure rather than a stitch failure. All properties are Minimum Average Roll Value(MARV)except the weight of the fabric,which is given for information purposes only. Depending on soil conditions and filtration requirements,additional geotextile options are available.All test methods are ASTM or industry standard,and have been verified by a third party testing facility.Test data is available upon request. DirtbagHD and DirtbagSD Tube are also available from ACF.ZZEEMW - ACtF a 11.E uwlll',"tl II'Y I1)0IN 11: Rol pal � 800.448.3636 5 2016 acfenvironmental.com