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Home My WebLink AboutBT105-CRE-00155 SUB 015700-010.002 1.04A.4 Discharge to Sanitary Sewer Plan010 002 To: Attn: STATUS 00057 01 57 00 Submittal was reviewed for conformance to contractual requirements. Contractor's Review Stamp Reviewed and Approved By: /s/ Jaylen Hong BT105-CRE-00155 ADDITIONAL REMARKS/ATTACHMENTS CN0205-24 CN0205-24 Specification Paragraph: 1.04A.4 SUBMITTAL ITEM TO DATE 00057 Discharge to Sanitary Sewer Plan Discharge to Sanitary Sewer Plan01 57 00 Submittal 530 Technology Drive, Suite 300 CONTRACT #:CN0205-24 Submittal Doc # Sent by: Jaylen Hong Spec SectionCorrespondence #Seq # jaylen.hong@shimmick.com SUBMITTAL NAME: BT105-CRE-00155 SUB 015700-010.002 1.04A.4 Discharge to Sanitary Sewer Plan Submitted 3/31/2026 4/21/2026 REFERENCE DOCUMENTS Specification Section: Submittal Greg Frost, Resident Engineer REPONSE REQUESTED 002010 909-256-9478 415-728-8786 c-greg.frost@soundtransit.org 01 57 00 SEQUENCE #: REV#:Shimmick Construction Company, Inc. Contract Rev # BT105 RENTON TRANSIT CENTER CENTRAL PUGET SOUND REGIONAL TRANSIT AUTHORITY - SOUND TRANSIT SOUND TRANSIT From:SHIMMICK CONSTRUCTION COMPANY, INC. 401 S Jackson St 3/31/2026DATE: Submittal Description Seattle, WA 98104 Irvine, CA 92618 BT105 South Renton Transit Center and Roadway Improvements SR 167 Bus on Shoulder Lane Overall Review Action: Code 3 Date Received: 2/26/2026 Date Due to Contractor: 3/19/2026 CRE #: BT105-CRE-00077 Review is for general conformance with the contract requirements and shall not relieve the contractor of responsibility for any errors or omissions in such submittals. Refer to GC3.05 Disposition Legend Code 1: No Exceptions Take Code 2: Exceptions as Noted Code 3: Exceptions as Noted - Resubmission Required Code 4: Rejected Reviewer: Greg Frost Date Returned: 3/16/2026 # Submittal Section / Spec Reference Item Review Action Reviewer’s Comments Contractor Response 1. References Code 2 Alyssa Jacobs: Number 1. under References on page 4 of the plan has been left blank. Either remove or correct the reference. 2. 8. Maintenance Code 3 Alyssa Jacobs: Please clarify the method that will be used to measure accumulated sediment depth within the tank to determine compliance with the 25% limit. 3. 8. Maintenance Code 3 Alyssa Jacobs: Please clarify how accumulated sediment will be characterized to determine the appropriate disposal facility prior to offsite transportation and disposal. 4. On-Site Wastewater Treatment System Code 3 Alyssa Jacobs: Please clarify the calibration and maintenance procedures for monitoring equipment and identify who will be responsible for system setup, discharge monitoring, and maintenance. 5. King County Industrial Code 2 Alyssa Jacobs: A King County Industrial Waste Discharge Submittal Review Comments Number 1 shows a link to the King County Construction Dewatering Authorization site - Ashley Added details and calculations under Section 8Maintenance - Ashley Added description to Section 8 Maintenance - Ashley Added description to Section 7 Monitoring - Ashley Waste Discharge Authorization Authorization has not yet been approved for this project. No discharge to the sanitary sewer may occur until the permit is issued. The plan may need to be updated and resubmitted to reflect any additional permit conditions required by King County. 6. 6. PRE- TREATMENT AND SAMPLING Code 2 Alyssa Jacobs: The plan states that if the system detects an influent pH of 11 s.u. or above, CO2 will be transmitted to reduce pH. Confirm that 11 s.u. provides a large enough buffer to prevent effluent water from exceeding the maximum allowable discharge limit. 7. 6. PRE- TREATMENT AND SAMPLING Code 3 Alyssa Jacobs: What is the procedure if the effluent pH at the second pH probe remains above allowable discharge limits after initial treatment? 8. 3. PROCESS WATER SOURCES Code 2 Alyssa Jacobs: The plan currently lists out two points of discharge (PODs); however, both are identified as MH5040. Please clarify whether there is only one point of discharge and revise the table accordingly. I believe it should only be one POD with multiple wastewater sources. Also spell out POD in the plan for reference. 9. 3. PROCESS WATER SOURCES Code 2 Alyssa Jacobs: Confirm that auger cast pile drilling water and wheel wash water are the only sources of wastewater proposed for discharge to the sanitary sewer. Acknowledged The maximum allowable discharge limit for pH is 12.0 s.u. The influent pH limit can be adjusted with themonitoring equipment as needed. - Ashley Added description to Section 6 Pre-Treatment andSampling. Also amended Exhibit B On SiteWastewater Treatment System drawing. - Ashley Amended table under Section 3 Process WaterSources. - Ashley Yes, confirmed. Sound Transit – Renton Transit Center 750 Rainier Ave S Renton, WA 98057 Discharge to Sanitary Sewer Plan – REV 1 March 27, 2026 Prepared By: Ashley Kollmorgen Encore Environmental, LLC (206) 965-5797 Prepared For: Jaylen Hong Shimmick Construction (415) 728-8786 RTC - Discharge to Sanitary Sewer Plan Shimmick Construction March 27, 2026 Encore Environmental, LLC | 2 1. INTRODUCTION The Renton Transit Center project consists of constructing a new transit center located at the Northeast corner of S Grady Way and Rainier Ave S, the work includes: Site preparation, construction of a new transit center bus bay island to accommodate eight (8) active bays with new custom steel canopy structure, new facility buildings, new steel framed gantry with perforated aluminum panels, new Batter Electric Bus (BEB) equipment yard, a new intersection at Rainier Ave S, installation of a new sanitary sewer line within the transit center and along the property line for parcel BRI-148, a new surface parking lot and access road providing connection from Lake Ave to the surface parking lot, widening of Northbound shoulder on SR 167 between the I-405 entrance and exit ramps to accommodate a bus only lane, installation of owner provided equipment and materials, and testing and commissioning. 2. SCHEDULE The contractor intends to discharge up to 5,000 Gallons per day in April 2026, bumping up to 50,000 Gallons per day between May and June 2026 to accommodate drilling activities, and then back to 5,000 Gallons per day from July 2026 to February 2028. Please refer to attached dewatering schedule. 3. PROCESS WATER SOURCES High pH process water from auger cast pile drilling and wheel wash water. DISCHARGE MH PROCESS WATER DESCRIPTION ANTICIPATED FLOW RATE ANTICIPATED QUANTITY ANTICIPATED DURATION Source 1MH5040 Auger Cast Pile Water 50 GPM 45,000 GPD May 2026 – June 2026 Source 2MH5040 Wheel Wash 50 GPM 5,000 GPD Apr 2026 – Feb 2028 4. PROCESS WATER CALCULATIONS • Auger cast piles, includes drilling water, groundwater, and rain water: o 25,000 SF x 2"/12" x 7.48CF = 32,000 Gal + 2,000 Gal/Shaft x 10 Shafts/Day = 20,000 GPD, Total = 45,000 GPD • Wheel wash water: 5,000 GPD is a conservative estimate 5. PRE-EXISTING CONTAMINATION The property has a history of known contamination for petroleum hydrocarbons and arsenic. According to the Remedial Action Report dated February 8, 2024 written by Shannon and Wilson, the property had a railroad line in the early part of the 20th century. From the 1940s to the 1960s a barn and residences were present. From 1968 to present day the site was occupied by auto dealerships with service shops and body shops. Associated facilities included underground storage tanks, above ground storage tanks, subfioor hydraulic hoists, fioor drains, trench drains, oil/water separators, alignment pits, and paint spray booths. Products used and stored included heating oil, gasoline, fresh and used motor oil, transmission fiuid, hydraulic oil, paints, and chlorinated and non- chlorinated solvents. RTC - Discharge to Sanitary Sewer Plan Shimmick Construction March 27, 2026 Encore Environmental, LLC | 3 Remedial excavations were done in 4 areas of the property in 2022 with 2 additional areas being treated with a dual action injection of binding and biostimulation material. Groundwater elevations were measured between 6 and 8.5-feet below ground surface (bgs). Groundwater sampling was completed by Shannon and Wilson in August of 2025 and the report for this summarizes sampling for TPH-D, TPH-O and arsenic. The auger cast pile locations are outside of known areas of contamination and exceedances of MTCA Method-A cleanup levels (refer to attached flgure Exhibit D). Additionally groundwater data within the infiuence of the auger cast piles is below the screening levels for petroleum based compounds shown on the King County Individual Authorization application. 6. PRE-TREATMENT AND SAMPLING Process water will be pumped to an 18,000-gal weir tank for pre-treatment of pH and settled solids as needed prior to discharge. The infiuent water will be monitored for pH using a pH monitoring system connected to CO2 canisters that allow for treatment of high pH water. A pH meter will be installed within the pipe of the infiuent water coming into the treatment tank. When the monitoring system detects infiuent pH at 11.0 s.u. or above, the CO2 will be transmitted into the weir tank through a weighted bubbler hose or direct injection into the infiuent pipe. A second pH meter will also be installed at the front of the weir tank to conflrm successful pH adjustment. The discharge pipe from the tank will have a valve and a tee installed immediately downstream of the tank and plumbed to recirculate back through the CO2 treatment. The tank will remain in recirculation and batch treatment until the pH parameters are sufficient. Because the treatment tank has weir walls, the majority of the settled solids will be contained to the flrst weir compartment reducing the amount of solids discharged. The sampling technician will hand sample the effluent water from a sampling port on the discharge line testing for settled solids using an Imhoff cone. Discharge water will be stopped as necessary to allow for additional settling time. The effluent water will discharge through 3-4” PVC pipe and will contain an in-line Octave fiow meter capable of monitoring the fiow rate as well as total gallons discharged, a check valve will be installed downstream of the fiow meter to control fiow rate. The discharge pipe will extend into the discharge manhole at a minimum of 2-feet inside the structure or lower if City of Renton requires. 7. MONITORING The maximum allowable discharge limit for pH is 12.0 standard units (s.u.) and measured with a calibrated pH meter. The settleable solids shall be measured with an Imhoff cone with allowable discharge of up to 7.0 mL/L. The maximum fiow rate shall not exceed 50 GPM no more than 50,000 GPD. Sampling results, discharge fiow rates, and total gallons per day will be recorded in King County’s Self Monitoring Report (SMR) form and submitted by the 15th of each month for the prior month’s discharge data. The pH meters will be calibrated by Encore/Shimmick weekly using 4.0, 7.0, and 10.0 buffer solutions. pH probes must be submersed in water in the tank or capped with electrode solution to maintain the integrity of the pH sensor on the probe. Shimmick will monitor the discharge to sewer daily when discharging. Encore will work with Shimmick on setting up the equipment and performing as needed maintenance. Encore will flll out the SMRs and submit those monthly. RTC - Discharge to Sanitary Sewer Plan Shimmick Construction March 27, 2026 Encore Environmental, LLC | 4 8. MAINTENANCE The maximum sediment accumulation must be 25% or less of the tank’s volume. The 25% criterion is calculated as an average of three values taken from locations that represent three equally-spaced sections of a rectangular tank: Inlet section, middle section, and outlet section. Accumulated sediment will be removed from the tanks with a vacuum truck and hauled to a permitted disposal facility. The depth of sediment in a tank triggering the 25% criterion that is 40-feet long x 8-feet wide x 9-feet tall is 36-inches. This tank holds 2,880 CF, 25% of this volume is 720 CF. The flrst two compartments are 27-feet long x 8-feet wide which equals 216-square feet. The depth of sediment is 720 CF/216 SF which equals 3-feet or 36-inches. The sediment will be measured with a measuring stick such as a grade rod capable of reaching the bottom of the tank, measurements will be taken every other week or more often if necessary to ensure sediment levels do not exceed 36-inches in the flrst two compartments of the tank. 9. Sediment in the tank will be analyzed for RCRA 8 + Cu, Ni, and Zn up front. This data will be provided to the disposal facility, either PRS in Fife or LaFarge in Seattle. Once the disposal sites issue approval of the sediment an ongoing proflle will be setup to able to haul contaminated sediment from the site as needed. CONTINGENCY If in the event discharge to the sewer is not feasible from a shutdown request by King County or City of Renton, a pump failure, maintenance issue, or any other actions ceasing discharge; the contractor shall arrange for the offsite disposal of process water to a permitted facility with vacuum trucks or tanker trucks. Any areas showing signs of unanticipated soil contamination during drilling will be isolated and managed separately in accordance with the RTC project Contaminated Soil Handling Plan being developed. Contaminated process water must be tested to determine if the screening levels meet or exceed the requirements of King County and City of Renton. Testing resulting in screening levels below the limits will be discharged to the sewer. Screening levels above the limits must either be hauled to an approved offsite disposal facility or go through additional pre-treatment methods prior to discharging to sewer pending approval by City of Renton and King County. 10. MINIMUM HYDRAULIC RETENTION TIME The working volume of the tank must have sufficient volume to allow for a minimum hydraulic retention time of 90 minutes under peak instantaneous fiow conditions. The peak instantaneous fiow rate must be the lower value of the maximum allowable discharge rate from the tank or the maximum discharge rate allowed by King County. Maximum Instantaneous Flow Rate Minimum Hydraulic Retention Time Minimum Required Tank Volume 50 GPM X 90 Minutes = 4,500 Gallons 11. MAXIMUM OVERFLOW RATE The maximum overfiow rate is 1.0 GPM per square foot of surface area. Calculate a tank’s overfiow rate by dividing instantaneous fiow rate over the surface area of the tank. Surface Area: 8x50 = 400 SF Overfiow Rate 1: 50 GPM/400 SF = 0.125 GPM/SF RTC - Discharge to Sanitary Sewer Plan Shimmick Construction March 27, 2026 Encore Environmental, LLC | 5 REFERENCES: 1. 2. Shannon and Wilson’s Remedial Action Report, February 8, 2024 3. Shannon and Wilson’s August 2025 Groundwater Data Report, November 6, 2025 ATTACHMENTS: 1. Exhibit A – Site Plan 2. Exhibit B – On-Site Wastewater Treatment System 3. Exhibit C – Dewatering Schedule 4. Exhibit D – Contaminated Soil and Groundwater Figure 5. King County’s Rectangular Weir Tank Discharge Conflguration 6. Octave Ultrasonic Flowmeter Spec Sheet 7. 18,000-Gal Weir Tank Spec Sheet 8. pH Adjustment Spec Sheet Exhibit A - Site Plan Renton Transit Center Project $77$&+0(17ㄸ Scale: NTS Renton Transit Center Project Exhibit B - On Site Wastewater Treatment System ATTACHMENT 2 Automated pH Adjustment Control Box & Flow Through pH Meter CO2 Gas Cylinders Weighted CO2 Dispersion Hose pH Probe Octave Flow Meter Gate Valve 18,000-Gal Weir Sedimentation Tank Influent Processed Water Discharge into Sewer Manhole Must Be a Min. 2' Deep PROFILE VIEW OF TANK SETUP Gate Valve Recirculation Pipe Gate Valve 50 GPM DischargeSample Port ENCORE ENVIRONMENTAL Process Description APR MAY JUN JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEPT OCT NOV DEC JAN FEB Wheel Wash Process Water Contaminated Process Water from Auger Cast Piles 2028 5,000 GPD 45,000 GPD EXHIBIT C - DISCHARGE DEWATERING SCHEDULE 2026 2027 ATTACHMENT 3 I : I : : : : : : ! : : : : : : : : : : : ! : I 20 19.5 1 9 1 8 . 5 18 17.5 17.5 2 0 . 0 1 9 . 5 19.0 1 8 . 5 1 8 . 0 RTN001-12 1 5 3 4 6 2 MW-6 MW-2 MW-5 MW-3 MW-7 RTN002-05 RTN002-06MW-1 RTN001-13 MW-8 MW-9MW-10 MW-12 MW-11MW-13 MW-14 RTN002 RTN004 RTN003 104059-211 Path: P:\GIS\SEA\109000s\109693 SRTC\MXD\SRTC_Aug2025_SitePlan_CDK.mxd Author: BRL User: KAC Date: 10/3/2025 0 75 Feet August 2025 Figure 1 Site Plan LEGEND Active Monitoring Well Installed July 2023 Decommissioned Monitoring Well Groundwater Elevation Contours (ft) Site Boundary ST Parcels Former Hoists Injection Area Excavation Area Former Buildings Notes: 1. Site features are approximate.2. Analytical results from August 2025 sampling event. 3. Arsenic concentrations represent dissolved arsenic.4. * D.O. sensor for one of two water quality meters did not appear to be functioning properly during the August 2025 sampling event. Renton Transit Center Sound Transit Renton, WA 1 2 RTN001 RTN001 TPH-D: 150 µg/L TPH-O: <200 µg/L Arsenic: 3.5 µg/L Final D.O.: 326.61* mg/L Final ORP: -110.0 mV TPH-D: 74 µg/L TPH-O: <200 µg/L Arsenic: 3.6 µg/L Final D.O.: 364.71* mg/L Final ORP: -95.6 mV TPH-D: 64 µg/L TPH-O: <200 µg/L Arsenic: 1.8 µg/L Final D.O.: 0.10 mg/L Final ORP: -0.4 mV TPH-D: 92 µg/L TPH-O: < 200 µg/L Arsenic: 3.4 µg/L Final D.O.: 0.12 mg/L Final ORP: -35.5 mV TPH-D 400 µg/L TPH-O 290 µg/L Arsenic 4.4 µg/L Final DO 0.09 mg/L Final ORP -84.5 mV TPH-D: 200 µg/L TPH-O: <200 µg/L Arsenic: 14 µg/L Final D.O.: 0.08 mg/L Final ORP: -61.8 mV MTCA-A Cleanup Level TPH-G 1,000 µg/L TPH-D 500 µg/L TPH-O 500 µg/L Arsenic 5 µg/L TPH-D: 120 µg/L TPH-O: <200 µg/L Arsenic: 9.0 µg/L Final D.O.: 435.16* mg/L Final ORP: -101.6 mV TPH-D: <50 µg/L TPH-O: <200 µg/L Arsenic: 11 µg/L Final D.O.: 0.50 mg/L Final ORP: -63.1 mV TPH-D: 440 µg/L TPH-O: <200 µg/L Arsenic: 7.9 µg/L Final D.O.: 432.44* mg/L Final ORP: -74.9 mV TPH-D: 81 µg/L TPH-O: <200 µg/L Arsenic: 11 µg/L Final D.O.: 0.12 mg/L Final ORP: -22.2 mV TPH-D: 90 µg/L TPH-O: <200 µg/L Arsenic: 13 µg/L Final D.O.: 0.31 mg/L Final ORP: -27.9 mV TPH-D: 120 µg/L TPH-O: <200 µg/L Arsenic: 4.3 µg/L Final D.O.: 405.23* mg/L Final ORP: -110.4 mV TPH-D: <50 µg/L TPH-O: <200 µg/L Arsenic: 50 µg/L Final D.O.: 0.18 mg/L Final ORP: -0.9 mV TPH-D: 180 µg/L TPH-O: <200 µg/L Arsenic: 3.9 µg/L Final D.O.: 372.34* mg/L Final ORP: -85.6 mV Exhibit D - Contaminated Soil and Groundwater Figure ATTACHMENT 4 Auger Cast Pile Area (25,000 SF) Auger Cast Pile Area (6,500 SF) Exposed soil in areas for the auger cast piles will be exposed seperately. Area 1 soil remediation Area 2 soil injection remediation EHi SHANNON &WILSON D ~ IO I D N A 0 - - SEDIMENT SAMPLE TAP TOTALIZING NON-RESETTABLE FLOW METER SEDIMENT SEDIMENTSEDIMENT FM Rectangular Sedimentation (Settling) Tank - Weir Conguration - Flow-through Discharges Gravity Discharges Scale: NTS Weir height 7.5’ (estimated) Invert elevation 7.5’ (estimated) Tank dimensions (hypothetical): 8’ (W) x 9’ (H) x 40‘ (L) Working dimensions (hypothetical - at water level): 8’ (W) x 7.5’ (H) x 40’ (L) = 2,400 ft3 18,000 gal Maximum discharge rate at 90 minute retention time: 18,000 gal/90 min = 200 gal/min (Based on empty tank working dimensions.) CONSTRUCTION DEWATERING WASTEWATER Sewer clean-out or manhole discharge location as approved by local sewer agency. LOCAL SANITARY SEWER 1512_5135m_3-ASedSettlingTank-WeirCong1-GravityDischarges.ai ATTACHMENT 5 i ~ 3 _ -"v .. -----, - I• la. • • •• : •• • • • • !IS' • • • • • • • • • • • • •••••••••• ~ . . . . . . . . . .... ' • • • • •· • • e • C . . . . . . . . • .. •····· .... . •.. .... . . . . ... : ...... . ~-• !' • .• •. •.• ••••• ~ •••• I. -· "I • • •• ··• •• • 1.-.... : ,) I.Ji - -·• -· -.:·. I ~ -"v ---------..... ---------~----------------------¥----------..... --.... 1--.r-.-;;-.i--'I--~ 1•·· ••. ··•···=•·:•• •... . .... •··. .. . .... .... ,• ...... •.• .. ••····~ . . . . .. •. . . . . ·--•••~ ... . .-... ---.. . .. :-~----· -.~-. :. -.. 111 • Master Meter // 101 Regency Parkway // Mansfield, TX 76063 // www.mastermeter.com 1 OCTAVE ULTRASONIC METER® Features & Beneﬁts: • Flow sensitivity starting as low as 1/16 GPM • Grade 316 Stainless Steel or Epoxy Coated Ductile Iron body design provides full compliance with ANSI/NSF 372 (AB1953 or NSF61G) • No moving parts. Minimal ﬂow intrusion. Enduring accuracy. • No required strainer • Wide beam ultrasonic measurement sensors for high accuracy and reliable operation • Industry standard communication protocol for integration with most third-party AMR/AMI systems • Active leak, theft, backﬂow, meter damage/tamper, rate of ﬂow, and battery life indication • Detailed LCD display features immediate reporting and visual indicators for 8 critical conditions • Ruggedized NEMA 6P/IP-68+ construction; fully submersible design • Designed to meet standards for both North American and International C&I water meters • Optional ﬂow measurements; Forward Only, Net Volume or Alternating Display (Forward and Reverse Consumption displayed separately) Octave brings the latest in ultrasonic metering technology to Commercial/Industrial (C&I) water meters and puts precise measurement where the real ﬂows exist. An excellent alternative to mechanical compound, single-jet, ﬂoating ball, ﬁre-service type and turbine meters, Octave excels at maintaining sustained accuracy for the life of the meter while providing smart AMR capabilities. Technical Speciﬁcations: Working Pressure - 175 PSI Liquid Temperature - 32° - 122 °F Metrological Characteristics - Meets ANSI/AWWA Standard C750-10, ISO 4064 rev. 2005 Conﬁguration - Compact-Display built into unit Power Source - 2 x D Size Lithium Thionyl Chloride batteries - 10 year warranted life time Environmental Protection - NEMA 6P+ (IP68+), Ambient operation temp. -13 °F / +131 °F for the display Display Units - Multi line 9 digit LCD (Programmable USG, Cubic Feet, Cubic Meters, Acre Feet for volume and GPM, Lt/s, or M³/h for rate of flow) Output - Programmable single/dual open drain digital pulse, dry contact digital pulse, encoder OR externally powered loop 4-20 mA ATTACHMENT 6 ■ •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• ■ Master Meter // 101 Regency Parkway // Mansfield, TX 76063 // www.mastermeter.com 2 OCTAVE ULTRASONIC METER® Performance Data Dimensions Octave † Typical Extended Low Flow Normal Flow Range ‡ Continuous Linearity Range Nominal Size Starting Flow 95% - 105% Accuracy 98.5% - 101.5% Accuracy Safe Max Flow +/- 0.5% Maximum Deviation inch (mm)GPM (Lt/s)GPM (Lt/s)GPM (Lt/s)GPM (Lt/s)GPM (Lt/s) 2" (50mm) 1/16 (.004) 1/4 (.016) 1/2 - 250 (.032 - 15.77) 250 (15.77) 4 - 200 (.25 - 12.62) 3" (80 mm) 1/16 (.004) 1/2 (.032) 1 - 500 (.06 - 31.54) 500 (31.54) 5 - 350 (.32 - 22.08) 4" (100 mm) 1/16 (.004) 3/4 (.047) 1-1/2 - 1,000 (.09 - 63.09) 1000 (63.09) 15 - 700 (.94 - 44.16) 6" (150 mm) 3/4 (.047) 2 (.13) 3 - 1,600 (.19 - 100.94) 1,600 (100.94) 20 - 1,150 (1.26 - 72.55) 8" (200 mm) 3/4 (.047) 4 (.25) 5 - 2,800 (.32 - 176.65) 2,800 (176.65) 50 - 2,000 (3.15 - 126.18) 10" (250 mm) 2.5 (.16) 8 (.50) 14 - 5,500 (.88 - 346.99) 5,500 (346.99) 400 - 4,000 (25.24 - 252.36) 12" (300 mm) 2.5 (.16) 8 (.50) 14 - 5,500 (.88 - 346.99) 5,500 (346.99) 400 - 4,000 (25.24 - 252.36) † Starting flows vary per meter but can go as low as the above listed flow rates. ‡ Continuous Safe Max Flow ranges listed for the Octave are for accurate flow measurement only and do not limit the Octave from meeting the Short-term Deluge Flow for fire services. NOTE — For Performance charts please see Engineering Document - Octave | Version 8.13 Master Meter, Inc. Toll Free: 800.765.6518 Fax: 817.842.8100 innovate@mastermeter.com ® Model 2" SS 2" DI 3"4"6"8"10"12" (50 mm)(50 mm)(80 mm)(100 mm)(150 mm)(200 mm)(250 mm)(300 mm) 10"17"12"14"18"20"17 3/4"19 3/4" (250 mm)(432 mm)(305 mm)(356 mm)(457 mm)(508 mm)(451 mm)(502 mm) 5 3/4"5 3/4"7 1/2"9"11"13 1/2"16"19 3/4" (146 mm)(146 mm)(190 mm)(229 mm)(280 mm)(343 mm)(406 mm)(502 mm) 6 3/4"6 3/4"8 1/2"9 7/8"10 7/8"12 7/8"16 1/2"19 3/4" (172 mm)(172 mm)(216 mm)(250 mm)(276 mm)(327 mm)(419 mm)(502 mm) 2 1/8"2 1/8"3 1/2"4 1/2"5 1/8"6 3/8"8"9 7/8" (54 mm)(54 mm)(90 mm)(115 mm)(130 mm)(162 mm)(203 mm)(251 mm) 24 lbs.36 lbs.48.5 lbs.76 lbs.108 lbs.150 lbs.210 lbs. (11 kg)(16 kg)(22 kg)(34 kg)(49 kg)(68 kg)(96 kg) 15 lbs 28 lbs 40 lbs.62 lbs. 88 lbs. (7 kg)(13 kg)(18 kg)(28 kg)(40 kg) B - Width H - Height Nominal Size L - Length Octave N/A N/A N/A h - Height Weight - Stainless Steel Weight - Ductile Iron N/A ATTACHMENT 6 ■ L -e - ~T~MASTER i4v4\METER •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• ■ ATTACHMENT 7 Dimensions and Weights Capacity: 18,060 gal (430 bbl) Height: 13' Width: 8' Length: 46' 1" Tare Weight: 26,820 lbs Construction Bare steel interior 3" fill line Three (3) standard 22" side-hinged manways Multiple valved fill/drain ports, including floor-level valves for low point drain out Sloped and V bottom for quicker drain out and easier cleaning Fixed rear axle for increased maneuverability Nose rail cut-out for easy access when installing hose and fittings on the front/bottom of tank Open top for easy access to liquids being stored, pumped or treated Full-length catwalk equipped with safety rails and non-slip tread Two (2) front and two (2) rear 4" valved fill/drain ports We proudly provide specialty-containment and waste-management solutions, with industry-leading service, safety, access and integrity. Learn more at lroncladEnvironmental.com *Photos are representational; actual products vary. Additional product plans and specifications may vary from those shown and are subject to in-stock availability. Features Easy-to-clean smooth wall interior, no corrugations and no internal rods Non-slip step materials on ladderwells and catwalks "Safety yellow" rails and catwalks for high visibility Safe operation reminder decals Built-in stair and walkway Available in California Options Heating coils Level gauges (fixed or temporary) External or internal manifold White exterior for MSS compli- ance Audible alarms, strobes and level gauges (digital and mechanical) IRONCLAD ENVIRONMENTAL SOLUTIONS ATTACHMENT 7 STEEL TANK 18,000 Gallon Open-Top Tank [Q] Passenger Side ----8' ---- 0 0 Back 13' Stair Side *Some details not shown in all views. Overall dimensions are normal. *Photos are representational; actual products vary. Additional product plans and specifications may vary from those shown and are subject to in-stock availability. Learn more at lroncladEnvironmental.com 46' 1" IRONCLAD ENVIRONMENTAL SOLUTIONS Automated pH Treatment Fact Sheet www.watertectonics.com CA 1072749 • WA WATERI*002NN Specific Features Options Available • Process flowrate of 5gpm to 500gpm • Automated pH adjustment using CO2 gas or liquid acid/base solutions • Real-time influent and effluent pH monitoring • Mobile, rugged and purpose-built cabinet housing • Configured for flow-though or external process use • System status, data logging and alerts with email notification • EagleEye web portal for remote status and site management • PhatBox PLUS option includes chemical dosing capabilities for additional treatment chemistry • Internal voltage options • Containerized unit MANUFACTURING STANDARDS MOBILIZATION & OPERATION OPERATING RANGES Compliant with the Washington State Department of Ecology BMP C252 UL508 electrical certification CSA/CE available Easy setup and minimal maintenance Fully automated for 24x7 operations Field support available Simple 110V power connection pH: 0 – 14 s.u. Target Contaminants: pH PhatBox PLUS option also targets: Total Suspended Solids, Heavy Metals and Emulsified Oils (Please inquire for additional contaminants) ©2021 WaterTectonics. All rights reserved. TddT&+b(cdA O pHAT Box· The PhatBox is a pre-engineered, packaged water treatment system for automated pH adjustment. The PhatBox pH probes and injection point are mounted to the system’s internal plumbing. Water enters the PhatBox and passes by the influent pH probe. If the influent pH reading is outside of the desired range, a pH adjustment acid/base solution is injected into the passing stream and is rapidly blended through a static mixer. The effluent pH probe analyzes the treated water prior to discharge to ensure that the pH has been adjusted to the desired range and records the results on the system data logger. The PhatBox allows for in-line pH adjustment or remote location pH adjustment. Real-time pH monitoring and data recording provide users with important water quality logs. This turnkey system centralizes all required treatment components in a single cabinet, significantly reducing installation time and providing safe housing for sensitive digital probes and PLC controllers. The PhatBox system has been used on construction, remediation, and industrial sites across the United States and Canada. The PhatBox pH probes and injection point are mounted externally to the source pond, tank, or vault. Water in the source structure is analyzed by the influent pH probe. If the influent pH reading is outside of the desired range, a pH adjustment acid/base solution is injected and allowed to mix in the source structure. The effluent pH probe analyzes the treated water in the source structure to ensure that the pH has been adjusted to the desired range and records the results on the system data logger. FLOW-THROUGH CONFIGURATION EXTERNAL PROCESS CONFIGURATION SOURCE PhatBox POND/TANK/ VAULT InfluentSensor Acid/BaseAddition EffluentSensor pHatBox FLOW-THROUGH CONFIGURATION InfluentSensor Acid/BaseAddition EffluentSensor pHatBox EXTERNAL PROCESS CONFIGURATION PhatBox Discharge Discharge SOURCE PhatBox POND/TANK/ VAULT InfluentSensor Acid/BaseAddition EffluentSensor pHatBox FLOW-THROUGH CONFIGURATION InfluentSensor Acid/BaseAddition EffluentSensor pHatBox EXTERNAL PROCESS CONFIGURATION PhatBox Discharge Discharge www.watertectonics.com CA 1072749 • WA WATERI*002NN TddT&+b(cdA O .A.A.A.A.A.A. ~ ~ .A.A.A.A.A.A.A. : ~::..~::..~::..~::.t .......... . : • .I' A.A.A.A.A.A.A.A 0 0 .A.A.A.A.A.A.A. .AA.A.A.A.A./'< ti INDUSTRIAL WASTE PROGRAM King County Partnering with Industries to Prevent Pollution Individual Authorization Application for Construction Dewatering and Groundwater Remediation Sites It may be possible to send construction-related water from construction sites into the sanitary sewer if approved by your local sewer agency and the King County Industrial Waste Program (KCIW). Please review the information on KCIW's construction dewatering Web page before completing this application. Use this application to apply for a waste discharge permit or a discharge authorization from KCIW. King County will determine which type of authorization you will need based on the information in your application . NOTE: Projects that discharge less than 25,000 gallons per day (gpd) to the sanitary sewer and meet other criteria (construction sites that have a settling tank and are less than one acre in size with no chemical site contamination) may be able to use our general authorization application for construction dewatering to apply for a general letter of authorization (GLA)-an easier, more straightforward authorization process. Check our construction dewatering Web page to see if you qualify. Construction dewatering: King County Code Section 28.82.160 defines "construction dewatering" as the act of pumping groundwater or stormwater away from an active construction site. For purposes of Public Rule (PUT-8- 14-1-PR), "Discharge of Construction Wastewater to the Sanitary Sewer System," construction dewatering water includes contaminated and uncontaminated stormwater and groundwater. Construction dewatering water does not include process wastewater. Process wastewater: Is defined as any water that, during manufacturing or processing, comes into direct contact with or results from th~ production or use of any raw material, intermediate product, finished product, byproduct, or waste product. If stormwater commingles with process wastewater and material stockpiles, the commingled water is considered process wastewater. Process wastewater includes, but is not limited to, wheel wash water, concrete wastewater, treated slurry wastewater, and well development wastewater. Instructions 1. Contact your local sewer agency first, before you complete a King County construction dewatering application. Confirm they will accept construction process wastewater and construction dewatering water from your construction site. Confirm the location(s), rate(s), and conditions for discharging to their system. A list of local agencies is available here. 2. Select your King County construction dewatering application (individual or general). Check our construction dewatering Web page for more information. . 3. Download, complete, and sign your application. Email your signed application and submit it to King County at info.KCIW@kingcounty.gov. 4. NOTE: If the proposed dewatering discharges directly to a King County sewer, you will also need to get approval from the King County Local Public Agency (LPA) Program to use the facility for the discharge. Once KCIW issues approval in the form of a discharge authorization, contact your local sewer agency to coordinate connection to Alternative Formats Available 206-477-5371 I TTY Relay: 711 Individual Application for Construction Dewatering their system, set up an account, and learn about any additional requirements. (You may need to work with several departments at the local agency.) 5. Allow enough time! The general aut horization process may be completed as quickly as 3 to 10 working days. The individual authorization Process takes about 1 to 3 months depending on the complexity of the project. The cost of a general authorization is a set fee. The cost of an ind ividual authorization or permit depends on the project's complexity. This fee is not refundable and must be paid even if your project plans change and you no longer want to discharge to the sewer system. Information about fees is available here. Tips for a Successful Application • Complete one application for each construction site. • Answer all questions; use additional pages, if needed. • Contact your local sewer agency before completing the application; identify and enter the specific maintenance hole or side sewer location approved by the local sewer agency for temporary connection to the sewer. • Make sure the authorized representative, owner, or delegated authorized representative signs this application (see pages 3 and 4). An unsigned application will not be processed and will be returned to the sender. • Check the boxes on the Application Checklist before submitting your appl ication. • Ensure that the name of the local sewer agency and specific authorizing person as well as the approved discharge rate is specified. • For questions, contact KCIW at info.kciw@kingcounty.gov or 206-477-5300. Application Checklist Before submitting your application, you must complete this checklist to confirm you have included all the necessary information and documentation. Incomplete or improperly signed applications will not be processed. If any box is not checked, provide a separate page explaining why. Application Component Completed Signature of authorized representative or owner (Page 3) D Signed signature delegation if authorized representative or owner is delegating g-' signature authority (Page 4) General project information (Pages 5-6) cY Local sewer agency contact (Page 7) Q/ Additional site information (Page 7) Gr' Discharge location, frequency, and quantity (Page 8) GY Process or activity generating wastewater (Page 9) w Contamination on site (Pages 9-10) i:;:y' Type of pretreatment (Page 11) ~ Exhibit A -Site Plan (Page 12) ff Exhibit B -Wastewater Treatment System Description (Page 12) G3"' Exhibit C -Dewatering Schedule (required for sites requesting discharge approval ~ for longer than six months) (Page 12) Exhibit D -Description of Contamination (required for sites with known w groundwater or sediment contamination) (Page 12) 2 Individual Application for Construction Dewatering Required Signature NOTE: A construction site owner must sign this page and/or Page 4 to delegate signature authority. King County Code 28.82.050 requires a signature from an "authorized representative" on all wastewater applications and reports. An authorized representative is responsible for the accuracy of the information provided. For construction projects, it is the site owner. The authorized representative may be one of the following: A. The president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function or any other person who performs similar policy or decision-making functions. B. The manager of one or more manufacturing, production, or operating facilities, but only if the manager: 1. Is authorized to make management decisions that govern the operation of the regulated facility, including having the explicit or implicit duty of making major capital investment recommendations and initiating and directing other comprehensive measures to assure long-term environmental compliance with environmental laws and regulations; 2. Can ensure that the necessary systems are established or actions are taken to gather complete and accurate information for control mechanism requirements and knowledgeable of King County reporting requirements; and 3. Has been assigned or delegated the authority to sign documents, in accordance with corporate procedures. C. A general partner or proprietor for a partnership or proprietorship. D. A director or highest official appointed or designated to oversee the operation and performance of the industry if the industrial user is a government agency. E. An individual and/or position-delegated in writing by one of the first four representatives (A-D above)-who is responsible for the overall operation of the facility from which the discharge originates or has overall responsibility for environmental matters for the company or agency. Use the form on the next page to delegate signature authority. I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of a fine and imprisonment for knowing violations. Alyssa Jacobs 401 S. Jackson St. Name Street Address Senior Environmental Compliance Specialist Seattle, WA 98104 Title City, State, and Zip Code Sound Transit alyssa.jacobs@soundtransit.orQ Company Name Email 206-398-5000 Phone Signature 228-217-6886 Cell Phone (optional) Date 3 Individual Application for Construction Dewatering Delegation of Signature Authority Form This form is only required if the authorized representative wishes to delegate signature authority. Use additional copies of this page to delegate to additional people or positions. Person Delegating Signature Authority By signing below, I certify that I am authorizing the following person(s) and/or position(s) to receive signature authority. I am an authorized representative for the company/agency named in this application because I meet the following definition listed on Page 3: r. A r B r e r o Alyssa Jacobs 401 S. Jackson St. Name Street Address Senior Environmental Compliance Specialist Seattle, WA 98104 Title City, State, and Zip Code Sound Transit ---·-alyssa .jacobs@soundtransit.org Company Name Email 206-398-5000 Phone Signature 228-217-6886 -·-·----· ·-· -·· ------------------· •• -·---·-. -----Cell Phone (optional) Date Person(s) and/or Position(s) Receiving Signature Authority 1. Ashley Kollmorgen 2. Cameron Carroll -----Name or Position Name or Position President Project Engineer ----------------~--Title Title Encore Environmental, LLC Shimmick --------·-· --Company Name Company Name 206-965-5797 PO Box 1150 360-865-2775 750 Ra inier Ave S --·------•-------Phone Street Address Phone Street Ad dress akollmorgen@encore cameron.carroll@shi -nw.com ~saquah, WA 98027 mmick.com Renton, WA 98057 ·-W·1 , City, State, and Zip Code Email City, State, and Zip Code ••• ~-~~ --~-~ Signature . Signature 3. 4. --------···-·--·--------------Name or Position Name or Position --· -~--------·-----•-• ... -·-.. ----------~---------------~ --Title Title ----------------, .... ·---•·· ---------Company Name Company Name ---·-----------·· --•--------·------Phone Street Address Phone Street Address -------.. ---·----· --------Email City, State, and Zip Code Email City, State, and Zip Code ----·-·------------.. Signature Signature 4 Individual Application for Construction Dewatering 5 Individual Application for Construction Dewatering General Project Information Applicant Shimmick Construction Project name Renton Transit Center Project location 750 Rainier Ave S (address, city, and zip code) Renton, WA 98057 NOTE: The site owner will be issued the discharge approval; the contractor or consultant will be sent a copy. Site/Project Owner {must be authorized Contractor /Consultant or delegated signatory) Name Alyssa Jacobs Jaylen Hong Title Senior Environmental Compliance Project Manager Specialist Company Sound Transit Shimmick Construction Mailing address 401 S. Jackson St. 750 Rainier Ave S City/state/zip code Seattle, WA 98104 Renton, WA 98057 Office phone no. 206-398-5000 833-723-2021 Cell phone no. 228-217-6886 415-728-8786 Email address a lyssa .jacobs@sou ndtra nsit.org jaylen.hong@shimmick.com Primary person to be contacted Ashley Kollmorgen -Encore Environmental about this application if not PO Box 1150, Issaquah, WA 98027 listed above (name, company, 206-965-5797, akollmorgen@encore-nw.com address, phone, email) NOTE: Use attachments, if necessary, to provide the following information. Brief description of the Construction of a new transit center including but not limited to; utilities, auger cast construction project piles, electrical, and building construction. Start date of discharge from 04/01/26 End date of discharge from 03/01/28 construction activities construction activities Site size (area in square feet or 10.4 Acres acres) Area generating contaminated 31,668 SF stormwater for sanitary sewer discharge (area in square feet or acres) Do you have access to a storm Yes~ No □ sewer/surface water? If you have access, have you Yes ~ No □ applied to the Washington State If "No," explain why not and how you plan to dispose of construction site Department of Ecology stormwater runoff: (Ecology) for a National WAR314062 Pollutant Discharge Elimination System (NPDES) construction stormwater permit? 6 Individual Application for Construction Dewatering If you have received an NPDES construction stormwater permit from Ecology, have you also received an Administrative Order? Yes~ No □ Have you designed and installed Yes ~ No □ appropriate source control best management practices (BMPs) and stormwater treatment systems to ensure compliance with the NPDES construction stormwater general permit and any applicable Administrative Order? List environmental permits issued for, or related to, this site by national, state, or local agencies. Provide permit numbers and any other relevant information. NPDES No.: WAR314062 Administrative Order No.: 23371 Others: 7 Individual Application for Construction Dewatering Detailed Project Information Local Sewer Agency Contact You must contact your local sewer agency (city or sewer district) to receive instructions on discharge location (visit our local sewer agency Web page for a list and map of local sewer agencies served by King County). The local city or sewer district personnel you contacted: Name Mike Sippo Title Civil Engineer II -Development Engineering City/sewer district City of Renton Phone 425-430-7298 Email msippo@rentonwa.gov Additional Site Information Will your construction dewatering enter the sanitary sewer Yes □ No IZI system in the City of Seattle? If "Yes," which sanitary sewer area? NOTE: Your contact in Seattle can tell you which sewer area. □ Separated sanitary sewer area □ Combined sewer area □ Partially separated sanitary sewer area Will you be discharging through multiple points of discharge Yes □ No IZI Don't Know □ (POD) (such as maintenance holes) simultaneously? Is this a linear project (tunnelling, pipeline, road/rail Yes □ No IZI construction, etc.)? Will this site have a Temporary Erosion and Sediment Control Yes IXI No □ (TESC) Plan that outlines BMPs? If you answered "Yes" to the TESC, the plan must be available on site for reference throughout the project. If you answered "No" to the TESC Plan, explain why: Will your project discharge greater than 25,000 gpd? Yes IZI No 0 If "Yes," specify rate: 50,000 gpd 8 Individual Application for Construction Dewatering Discharge Location, Frequency, and Quantity Enter information about the POD (i.e., maintenance hole/side sewer assigned by the city or local sewer agency) for each temporary connection to the sanitary sewer in the following table. Attach additional sheets if you have more than four PODs. • For frequency of discharge, enter "continuous" if you will discharge continuously to the sanitary sewer as the process wastewater is generated or "batch" if you will store process wastewater and discharge it to the sanitary sewer in batches. • Calculate the projected daily maximum discharge volume for each POD and then the total for all PODs. Consider process water, stormwater, and groundwater in your calculations. Estimate the appropriate rational method runoff coefficient for the area generating stormwater runoff. As guidance, the King County Surface Water Design Manual (2021) -Table 3.2.1.A. has the following rational method runoff coefficients, depending on land use type: Lawns 0.25 Gravel areas 0.80 Pavement and roofs 0.90 Open water 1.00 o For example: A one acre site that is 0.5 acres gravel (runoff coefficient= 0.80) and 0.5 acres paved/impervious (runoff coefficient= 0.90), the total site runoff coefficient would be 0.85. o To calculate the maximum daily stormwater discharge from the site in gallons per day use a storm event of 2 inches per 24 hours. o Using a total site runoff coefficient of 0.85 (example only) and the rational method, the calculation for gallons-per-day is: [area in square feet*(2 inches/day*l foot/12 inches)*7.48 gal/cubic foot]*C, where C = rational runoff coefficient= 0.85 (example only), one acre= 43,560 square feet. • Document the assumptions and methods used to calculate the discharge volume from your site. POD POD number/or location Frequency of Maximum discharge Discharge as provided by the local discharge rate approved by the volume, gallons sewer agency Continuous Batch local sewer agency per day (gpd) (gallons per minute) PODl MH5040 ~ □ 50GPM 50,000 GPO POD2 □ POD3 □ □ POD4 □ □ Results from any additional sheets: Total discharge (gpd): 50,000 GPO Assumptions and methods used to determine discharge volume for each POD PODl Auger Cast Piles: 25,000 SF x 2"/12" x 7.48CF = 32,000 Gal + 2,000 Gal/Shaft x 10 Shafts/Day= 20,000 GPO, Total = 45,000 GPO. Wheel wash: Conservative Estimate POD2 POD3 POD4 9 Individual Application for Construction Dewatering Process or Activity Generating Wastewater at each POD Well Wheel Equipment Concrete Jet grouting dewatering wash cleaning curing POD 1 □ □ □ □ □ POD2 □ ~ □ □ □ POD3 □ □ □ □ □ POD4 □ □ □ □ □ If "Other" is checked, describe activities: I Auger Cast Concrete Piles Contamination On Site Is there any known groundwater or soil contamination on site? Yes IZI No □ Stormwater Other runoff □ ~ □ □ □ □ □ □ If "No," skip the rest of this section and go to the Pretreatment Section. If "Yes," complete the rest of this section and submit Exhibit D. Provide a brief site history and nature of Former car sales lot with auto maintenance facilities contamination: Does the site have PCB contamination? Yes □ No IZI If "Yes," briefly describe the level of PCB contamination. Does the site have metal contamination? Yes IZI No □ If "Yes," briefly describe the level of metal contamination. Arsenic 4.4 to 14 ppb If contaminants are present in the soil, do Yes □ No IZI N/A □ they exceed Model Toxics Control Act level If "Yes," briefly specify the MTCA level cleanup standards. cleanup standards? Check the tables below if any of the chemicals listed exceed screening levels. Does the site have petroleum-based Yes IXI No □ If "Yes," complete this table. If "No," skip to contamination? the next table. 1. Screening levels for petroleum-based compounds Not Detected Exceeds Chemical Screening level detected below screening (mg/L) screening level level 181 □ □ Benzene 0.07 181 □ □ Ethyl benzene 1.7 181 □ □ Toluene 1.4 181 □ □ Xylenes, total 2.2 □ IZI □ Total petroleum hydrocarbons (TPH) 100 10 Individual Application for Construction Dewatering Is site contamination dry-cleaning based? Yes □ No lxl If "Yes," complete this table. If "No," skip to the next table. 2. Screening levels for perchloroethylene breakdown compounds (old dry cleaning laundry cleanup sites) Not Detected Exceeds Chemical Screening level (µg/L) detected below screening screening level level □ □ □ Dichloroethylene, 1,2-(Total -cis & trans) 2,000 □ □ □ Tetrachloroethylene (Perchloroethylene/PCE) 240 □ □ □ Trichloroethylene (TCE) 500 □ □ □ Vinyl chloride 12 Does site contamination contain volatile organic Yes □ No IXI If "Yes," complete this table. If "No," skip compounds? to the next section. 3. Screening level for other volatile organic compounds Not Detected Exceeds Chemical Screening level detected below screening (µg/L) screening level level □ □ □ Acrolein 160 □ □ □ Acrylonitrile 960 □ □ □ Bromoform 220 □ □ □ Carbon disulfide 73 □ □ □ Carbon tetrachloride 11 □ □ □ Chlorobenzene 2,300 □ □ □ Chloroethane (Ethyl chloride) 5,800 □ □ □ Chloroform (Trichloromethane) 60 □ □ □ Dichloroethane, 1,1-1,700 □ □ □ Dichloroethane, 1,2-(Ethylene dichloride) 170 □ □ □ Dichlorodifluoromethane 41 □ □ □ Dichloroethylene, 1,1-(Vinylidene chloride) 3 □ □ □ Dichloropropane, 1,2-(Propylene dichloride) 3,000 □ □ □ Dichloropropene, 1,3 90 □ □ □ Methyl bromide (Bromomethane) 78 □ □ □ Methyl chloride (Chloromethane) 570 □ □ □ Methylene chloride 4,100 □ □ □ Methyl isobutyl ketone (4-Methyl-2-pentanone) 15,000 □ □ □ Naphthalene 3,820 □ □ □ Nitrobenzene 2,000 □ □ □ Tetrachloroethane, 1,1,2,2-380 □ □ □ Trichloroethane, 1,1,1-(Methyl chloroform) 2,700 □ □ □ Trichloroethane, 1,1,2-1,300 11 Individual Application for Construction Dewatering Type of Pretreatment For each waste stream, identify the type of wastewater pretreatment you will provide (such as filtration, chemical precipitation, settling, pH neutralization, electrocoagulation, chitosan enhanced sand filtration, and granulated activated carbon). King County policy requires that, at a minimum, an appropriately sized settling tank (weir tank preferred) must be installed to provide gravity separation. For graphics explaining the minimum settling tank design expected, see KCIW's minimum standards for sedimentation tank design . Briefly describe the type of pretreatment: Process water will be pumped to an 18,000-gal weir tank for pre-treatment of pH and settled solids as needed prior to discharge. The influent water will be monitored for pH using a pH monitoring system connected to CO2 canisters that allow for treatment of high pH water. A pH meter will be installed within the pipe of the influent water coming into the treatment tank. When the monitoring system detects influent pH at 11.0 s.u. or above, the CO2 will be transmitted into the weir tank through a weighted bubbler hose or direct injection into the influent pipe. A second pH meter will also be installed at the front of the weir tank to confirm successful pH adjustment. Because the treatment tank has weir walls, the majority of the settled solids will be contained to the first weir compartment reducing the amount of solids discharged. The sampling technician will hand sample the effluent water from a sampling port on the discharge line testing for settled solids using an Imhoff cone. Discharge water will be stopped as necessa ry to allow for add it ional settling time. The effluent water will discharge through 3-4" PVC pipe and will contain an in-line Octave flow meter capab le of monitoring the flow rate as well as total gallons discharged, a check va lve will be installed downstream of the flow meter to control flow rate. The discharge pipe will extend into the discharge manhole at a minimum of 2-feet inside the structure or lower if City of Renton requires. If different pretreatment at each POD, describe each separately: POD 1 POD2 POD3 POD4 12 Individual Application for Construction Dewatering Exhibits NOTE: Exhibits A and B are required for all applications. Exhibit A: Site Plan Attach a site plan that shows the location of activities or processes generating wastewater, settling ponds/tanks or other wastewater treatment system components, wastewater conveyance lines, temporary points of discharge (approved by the local city or sewer district), groundwater and/or sediment sampling locations, streets, and public sewer and storm drainage facilities. Exhibit B: On-Site Wastewater Treatment System Attach a description of the proposed wastewater treatment system, including the following: • Diagrams, specification sheets, and basic design data for system components (e.g., pumps, tanks, mixers) • Schematic flow diagram of the treatment process that shows system piping, tanks, and control features • Maximum flow rate for the system NOTE: KCIW may require an engineering justification and/or other evidence demonstrating that discharge from the site will meet applicable permit limits. KCIW's minimum standards for rectangular sedimentation tank design are available here. Exhibit C: Dewatering Schedule NOTE: Exhibit C is only required for approval of projects that will discharge longer than six months. Attach a wastewater discharge schedule indicating when each activity or process is expected to generate wastewater for the duration of the project. For each process and discharge period, specify the projected maximum daily discharge volume (see example below). NOTE: The chart below is included as an example only. You may create a similar table or use a different format, provided it includes the requested information. 1Project Name: __ _ L ;E 0 ---·-I Start Date Project Timeline End Date 1------------week week week week week week week week week week week week week week week Process Generating Wastewater 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Process 1 -drill slurry decant Process 2 -wheel wash Process 3 -Excavation dewatering Process 4 -Contaminated Stormwater Exhibit D: Description of contamination sources and chemical characteristics NOTE: ExhibitD is only required for sites with known groundwater or soil contamination. Attach a summary (preferably in table format) of all available groundwater and/or sediment quality data. Indicate groundwater and/or sediment sample locations on the site plan (Exhibit A). See the "Contamination on site" section for a list of KCIW discharge screening levels for chemical compounds typically found at certain cleanup sites. 13 Submittal Response 3/16/2026 Contract No: CN 0205-24 Submittal Contract Title: BT105 South Renton Transit Center and Roadway Improvements SR 167 Bus on Shoulder Lane CRE #: BT105-CRE-00077 BT105-REC-00128 01 57 00-010.001 1.04A.4 To: Attn: Jaylen Hong Shimmick Construction Company Inc. 1 Harbor Center, Suite 200 Suisun, CA 94585 Submittal Package No Sequential No Revision No Paragraph Supplement No Description 01 57 00-010.001 1.04A.4 010 001 1.04A.4 Discharge to Sanitary Sewer Plan Overall Review Action: Code 3 Remark: Exceptions as Noted - Resubmission Required Signed: Greg Frost - Resident Engineer *• SOUNDTRANSIT BT105 South Renton Transit Center and Roadway Improvements SR 167 Bus on Shoulder Lane Overall Review Action: Code 3 Date Received: 2/26/2026 Date Due to Contractor: 3/19/2026 CRE #: BT105-CRE-00077 Review is for general conformance with the contract requirements and shall not relieve the contractor of responsibility for any errors or omissions in such submittals. Refer to GC3.05 Disposition Legend Code 1: No Exceptions Take Code 2: Exceptions as Noted Code 3: Exceptions as Noted - Resubmission Required Code 4: Rejected Reviewer: Greg Frost Date Returned: 3/16/2026 # Submittal Section / Spec Reference Item Review Action Reviewer’s Comments Contractor Response 1. References Code 2 Alyssa Jacobs: Number 1. under References on page 4 of the plan has been left blank. Either remove or correct the reference. 2. 8. Maintenance Code 3 Alyssa Jacobs: Please clarify the method that will be used to measure accumulated sediment depth within the tank to determine compliance with the 25% limit. 3. 8. Maintenance Code 3 Alyssa Jacobs: Please clarify how accumulated sediment will be characterized to determine the appropriate disposal facility prior to offsite transportation and disposal. 4. On-Site Wastewater Treatment System Code 3 Alyssa Jacobs: Please clarify the calibration and maintenance procedures for monitoring equipment and identify who will be responsible for system setup, discharge monitoring, and maintenance. 5. King County Industrial Code 2 Alyssa Jacobs: A King County Industrial Waste Discharge Submittal Review Comments Waste Discharge Authorization Authorization has not yet been approved for this project. No discharge to the sanitary sewer may occur until the permit is issued. The plan may need to be updated and resubmitted to reflect any additional permit conditions required by King County. 6. 6. PRE- TREATMENT AND SAMPLING Code 2 Alyssa Jacobs: The plan states that if the system detects an influent pH of 11 s.u. or above, CO2 will be transmitted to reduce pH. Confirm that 11 s.u. provides a large enough buffer to prevent effluent water from exceeding the maximum allowable discharge limit. 7. 6. PRE- TREATMENT AND SAMPLING Code 3 Alyssa Jacobs: What is the procedure if the effluent pH at the second pH probe remains above allowable discharge limits after initial treatment? 8. 3. PROCESS WATER SOURCES Code 2 Alyssa Jacobs: The plan currently lists out two points of discharge (PODs); however, both are identified as MH5040. Please clarify whether there is only one point of discharge and revise the table accordingly. I believe it should only be one POD with multiple wastewater sources. Also spell out POD in the plan for reference. 9. 3. PROCESS WATER SOURCES Code 2 Alyssa Jacobs: Confirm that auger cast pile drilling water and wheel wash water are the only sources of wastewater proposed for discharge to the sanitary sewer. 010 001 To: Attn: STATUS 00057 01 57 00 Discharge to Sanitary Sewer Plan Discharge to Sanitary Sewer Plan01 57 00 Submittal SEQUENCE #: REV#:Shimmick Construction Company, Inc. Contract Rev # BT105 RENTON TRANSIT CENTER CENTRAL PUGET SOUND REGIONAL TRANSIT AUTHORITY - SOUND TRANSIT SOUND TRANSIT From:SHIMMICK CONSTRUCTION COMPANY, INC. 401 S Jackson St 530 Technology Drive, Suite 300 SUBMITTAL NAME: BT105-CRE-00066 SUB 015700-10.001 1.04A.4 Discharge to Sanitary Sewer Plan Submitted 2/26/2026 3/19/2026 REFERENCE DOCUMENTS Specification Section: Submittal Greg Frost, Resident Engineer REPONSE REQUESTED 001010 909-256-9478 415-728-8786 c-greg.frost@soundtransit.org 01 57 00 2/26/2026 CONTRACT #:CN0205-24 Submittal Doc # Sent by: Jaylen Hong Spec SectionCorrespondence #Seq # DATE: Submittal Description Seattle, WA 98104 Irvine, CA 92618 Submittal was reviewed for conformance to contractual requirements. Contractor's Review Stamp Reviewed and Approved By: /s/ Jaylen Hong jaylen.hong@shimmick.com BT105-CRE-00066 ADDITIONAL REMARKS/ATTACHMENTS CN0205-24 CN0205-24 Specification Paragraph: 1.04A.4 SUBMITTAL ITEM TO DATE 00057 Sound Transit – Renton Transit Center 750 Rainier Ave S Renton, WA 98057 Discharge to Sanitary Sewer Plan February 20, 2026 Prepared By: Ashley Kollmorgen Encore Environmental, LLC (206) 965-5797 Prepared For: Jaylen Hong Shimmick Construction (415) 728-8786 RTC - Discharge to Sanitary Sewer Plan Shimmick Construction February 20, 2026 Encore Environmental, LLC | 2 1. INTRODUCTION The Renton Transit Center project consists of constructing a new transit center located at the Northeast corner of S Grady Way and Rainier Ave S, the work includes: Site preparation, construction of a new transit center bus bay island to accommodate eight (8) active bays with new custom steel canopy structure, new facility buildings, new steel framed gantry with perforated aluminum panels, new Batter Electric Bus (BEB) equipment yard, a new intersection at Rainier Ave S, installation of a new sanitary sewer line within the transit center and along the property line for parcel BRI-148, a new surface parking lot and access road providing connection from Lake Ave to the surface parking lot, widening of Northbound shoulder on SR 167 between the I-405 entrance and exit ramps to accommodate a bus only lane, installation of owner provided equipment and materials, and testing and commissioning. 2. SCHEDULE The contractor intends to discharge up to 5,000 Gallons per day in April 2026, bumping up to 50,000 Gallons per day between May and June 2026 to accommodate drilling activities, and then back to 5,000 Gallons per day from July 2026 to February 2028. Please refer to attached dewatering schedule. 3. PROCESS WATER SOURCES High pH process water from auger cast pile drilling and wheel wash water. DISCHARGE MH PROCESS WATER DESCRIPTION ANTICIPATED FLOW RATE ANTICIPATED QUANTITY ANTICIPATED DURATION POD 1 MH5040 Auger Cast Pile Water 50 GPM 45,000 GPD May 2026 – June 2026 POD 2 MH5040 Wheel Wash 50 GPM 5,000 GPD Apr 2026 – Feb 2028 4. PROCESS WATER CALCULATIONS • Auger cast piles, includes drilling water, groundwater, and rain water: o 25,000 SF x 2"/12" x 7.48CF = 32,000 Gal + 2,000 Gal/Shaft x 10 Shafts/Day = 20,000 GPD, Total = 45,000 GPD • Wheel wash water: 5,000 GPD is a conservative estimate 5. PRE-EXISTING CONTAMINATION The property has a history of known contamination for petroleum hydrocarbons and arsenic. According to the Remedial Action Report dated February 8, 2024 written by Shannon and Wilson, the property had a railroad line in the early part of the 20th century. From the 1940s to the 1960s a barn and residences were present. From 1968 to present day the site was occupied by auto dealerships with service shops and body shops. Associated facilities included underground storage tanks, above ground storage tanks, subfloor hydraulic hoists, floor drains, trench drains, oil/water separators, alignment pits, and paint spray booths. Products used and stored included heating oil, gasoline, fresh and used motor oil, transmission fluid, hydraulic oil, paints, and chlorinated and non- chlorinated solvents. RTC - Discharge to Sanitary Sewer Plan Shimmick Construction February 20, 2026 Encore Environmental, LLC | 3 Remedial excavations were done in 4 areas of the property in 2022 with 2 additional areas being treated with a dual action injection of binding and biostimulation material. Groundwater elevations were measured between 6 and 8.5-feet below ground surface (bgs). Groundwater sampling was completed by Shannon and Wilson in August of 2025 and the report for this summarizes sampling for TPH-D, TPH-O and arsenic. The auger cast pile locations are outside of known areas of contamination and exceedances of MTCA Method-A cleanup levels (refer to attached figure Exhibit D). Additionally groundwater data within the influence of the auger cast piles is below the screening levels for petroleum based compounds shown on the King County Individual Authorization application. 6. PRE-TREATMENT AND SAMPLING Process water will be pumped to an 18,000-gal weir tank for pre-treatment of pH and settled solids as needed prior to discharge. The influent water will be monitored for pH using a pH monitoring system connected to CO2 canisters that allow for treatment of high pH water. A pH meter will be installed within the pipe of the influent water coming into the treatment tank. When the monitoring system detects influent pH at 11.0 s.u. or above, the CO2 will be transmitted into the weir tank through a weighted bubbler hose or direct injection into the influent pipe. A second pH meter will also be installed at the front of the weir tank to confirm successful pH adjustment. Because the treatment tank has weir walls, the majority of the settled solids will be contained to the first weir compartment reducing the amount of solids discharged. The sampling technician will hand sample the eiluent water from a sampling port on the discharge line testing for settled solids using an Imhoi cone. Discharge water will be stopped as necessary to allow for additional settling time. The eiluent water will discharge through 3-4” PVC pipe and will contain an in-line Octave flow meter capable of monitoring the flow rate as well as total gallons discharged, a check valve will be installed downstream of the flow meter to control flow rate. The discharge pipe will extend into the discharge manhole at a minimum of 2-feet inside the structure or lower if City of Renton requires. 7. MONITORING The maximum allowable discharge limit for pH is 12.0 standard units (s.u.) and measured with a calibrated pH meter. The settleable solids shall be measured with an Imhoi cone with allowable discharge of up to 7.0 mL/L. The maximum flow rate shall not exceed 50 GPM no more than 50,000 GPD. Sampling results, discharge flow rates, and total gallons per day will be recorded in King County’s Self Monitoring Report (SMR) form and submitted by the 15th of each month for the prior month’s discharge data. 8. MAINTENANCE The maximum sediment accumulation must be 25% or less of the tank’s volume. The 25% criterion is calculated as an average of three values taken from locations that represent three equally-spaced sections of a rectangular tank: Inlet section, middle section, and outlet section. Accumulated sediment will be removed from the tanks with a vacuum truck and hauled to a permitted disposal facility. RTC - Discharge to Sanitary Sewer Plan Shimmick Construction February 20, 2026 Encore Environmental, LLC | 4 9. CONTINGENCY If in the event discharge to the sewer is not feasible from a shutdown request by King County or City of Renton, a pump failure, maintenance issue, or any other actions ceasing discharge; the contractor shall arrange for the oisite disposal of process water to a permitted facility with vacuum trucks or tanker trucks. Any areas showing signs of unanticipated soil contamination during drilling will be isolated and managed separately in accordance with the RTC project Contaminated Soil Handling Plan being developed. Contaminated process water must be tested to determine if the screening levels meet or exceed the requirements of King County and City of Renton. Testing resulting in screening levels below the limits will be discharged to the sewer. Screening levels above the limits must either be hauled to an approved oisite disposal facility or go through additional pre-treatment methods prior to discharging to sewer pending approval by City of Renton and King County. 10. MINIMUM HYDRAULIC RETENTION TIME The working volume of the tank must have suiicient volume to allow for a minimum hydraulic retention time of 90 minutes under peak instantaneous flow conditions. The peak instantaneous flow rate must be the lower value of the maximum allowable discharge rate from the tank or the maximum discharge rate allowed by King County. Maximum Instantaneous Flow Rate Minimum Hydraulic Retention Time Minimum Required Tank Volume 50 GPM X 90 Minutes = 4,500 Gallons 11. MAXIMUM OVERFLOW RATE The maximum overflow rate is 1.0 GPM per square foot of surface area. Calculate a tank’s overflow rate by dividing instantaneous flow rate over the surface area of the tank. Surface Area: 8x50 = 400 SF Overflow Rate 1: 50 GPM/400 SF = 0.125 GPM/SF REFERENCES: 1. https://kingcounty.gov/en/dept/dnrp/waste-services/wastewater-treatment/sewer-system- services/industrial-waste/business-information/construction-dewatering 2. Shannon and Wilson’s Remedial Action Report, February 8, 2024 3. Shannon and Wilson’s August 2025 Groundwater Data Report, November 6, 2025 ATTACHMENTS: 1. Exhibit A – Site Plan 2. Exhibit B – On-Site Wastewater Treatment System 3. Exhibit C – Dewatering Schedule 4. Exhibit D – Contaminated Soil and Groundwater Figure 5. King County’s Rectangular Weir Tank Discharge Configuration 6. Octave Ultrasonic Flowmeter Spec Sheet 7. 18,000-Gal Weir Tank Spec Sheet 8. pH Adjustment Spec Sheet Exhibit A - Site Plan Renton Transit Center Project $77$&+0(17ㄸ Scale: NTS Renton Transit Center Project Exhibit B - On Site Wastewater Treatment System ATTACHMENT 2 Automated pH Adjustment Control Box & Flow Through pH Meter CO2 Gas Cylinders Weighted CO2 Dispersion Hose pH Probe Octave Flow Meter Gate ValveGate Valve 18,000-Gal Weir Sedimentation Tank 50 GPM DISCHARGE Influent Processed Water Discharge into Sewer Manhole Must Be a Min. 2' Deep PROFILE VIEW OF TANK SETUP Sample Port ENCORE ENVIRONMENTAL Process Description APR MAY JUN JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEPT OCT NOV DEC JAN FEB Wheel Wash Process Water Contaminated Process Water from Auger Cast Piles 2028 5,000 GPD 45,000 GPD EXHIBIT C - DISCHARGE DEWATERING SCHEDULE 2026 2027 ATTACHMENT 3 I : I : : : : : : ! : : : : : : : : : : : ! : I 20 19.5 1 9 1 8 . 5 18 17.5 17.5 2 0 . 0 1 9 . 5 19.0 1 8 . 5 1 8 . 0 RTN001-12 1 5 3 4 6 2 MW-6 MW-2 MW-5 MW-3 MW-7 RTN002-05 RTN002-06MW-1 RTN001-13 MW-8 MW-9MW-10 MW-12 MW-11MW-13 MW-14 RTN002 RTN004 RTN003 104059-211 Path: P:\GIS\SEA\109000s\109693 SRTC\MXD\SRTC_Aug2025_SitePlan_CDK.mxd Author: BRL User: KAC Date: 10/3/2025 0 75 Feet August 2025 Figure 1 Site Plan LEGEND Active Monitoring Well Installed July 2023 Decommissioned Monitoring Well Groundwater Elevation Contours (ft) Site Boundary ST Parcels Former Hoists Injection Area Excavation Area Former Buildings Notes: 1. Site features are approximate.2. Analytical results from August 2025 sampling event. 3. Arsenic concentrations represent dissolved arsenic.4. * D.O. sensor for one of two water quality meters did not appear to be functioning properly during the August 2025 sampling event. Renton Transit Center Sound Transit Renton, WA 1 2 RTN001 RTN001 TPH-D: 150 µg/L TPH-O: <200 µg/L Arsenic: 3.5 µg/L Final D.O.: 326.61* mg/L Final ORP: -110.0 mV TPH-D: 74 µg/L TPH-O: <200 µg/L Arsenic: 3.6 µg/L Final D.O.: 364.71* mg/L Final ORP: -95.6 mV TPH-D: 64 µg/L TPH-O: <200 µg/L Arsenic: 1.8 µg/L Final D.O.: 0.10 mg/L Final ORP: -0.4 mV TPH-D: 92 µg/L TPH-O: < 200 µg/L Arsenic: 3.4 µg/L Final D.O.: 0.12 mg/L Final ORP: -35.5 mV TPH-D 400 µg/L TPH-O 290 µg/L Arsenic 4.4 µg/L Final DO 0.09 mg/L Final ORP -84.5 mV TPH-D: 200 µg/L TPH-O: <200 µg/L Arsenic: 14 µg/L Final D.O.: 0.08 mg/L Final ORP: -61.8 mV MTCA-A Cleanup Level TPH-G 1,000 µg/L TPH-D 500 µg/L TPH-O 500 µg/L Arsenic 5 µg/L TPH-D: 120 µg/L TPH-O: <200 µg/L Arsenic: 9.0 µg/L Final D.O.: 435.16* mg/L Final ORP: -101.6 mV TPH-D: <50 µg/L TPH-O: <200 µg/L Arsenic: 11 µg/L Final D.O.: 0.50 mg/L Final ORP: -63.1 mV TPH-D: 440 µg/L TPH-O: <200 µg/L Arsenic: 7.9 µg/L Final D.O.: 432.44* mg/L Final ORP: -74.9 mV TPH-D: 81 µg/L TPH-O: <200 µg/L Arsenic: 11 µg/L Final D.O.: 0.12 mg/L Final ORP: -22.2 mV TPH-D: 90 µg/L TPH-O: <200 µg/L Arsenic: 13 µg/L Final D.O.: 0.31 mg/L Final ORP: -27.9 mV TPH-D: 120 µg/L TPH-O: <200 µg/L Arsenic: 4.3 µg/L Final D.O.: 405.23* mg/L Final ORP: -110.4 mV TPH-D: <50 µg/L TPH-O: <200 µg/L Arsenic: 50 µg/L Final D.O.: 0.18 mg/L Final ORP: -0.9 mV TPH-D: 180 µg/L TPH-O: <200 µg/L Arsenic: 3.9 µg/L Final D.O.: 372.34* mg/L Final ORP: -85.6 mV Exhibit D - Contaminated Soil and Groundwater Figure ATTACHMENT 4 Auger Cast Pile Area (25,000 SF) Auger Cast Pile Area (6,500 SF) Exposed soil in areas for the auger cast piles will be exposed seperately. Area 1 soil remediation Area 2 soil injection remediation EHi SHANNON &WILSON D ~ IO I D N A 0 - - SEDIMENT SAMPLE TAP TOTALIZING NON-RESETTABLE FLOW METER SEDIMENT SEDIMENTSEDIMENT FM Rectangular Sedimentation (Settling) Tank - Weir Conguration - Flow-through Discharges Gravity Discharges Scale: NTS Weir height 7.5’ (estimated) Invert elevation 7.5’ (estimated) Tank dimensions (hypothetical): 8’ (W) x 9’ (H) x 40‘ (L) Working dimensions (hypothetical - at water level): 8’ (W) x 7.5’ (H) x 40’ (L) = 2,400 ft3 18,000 gal Maximum discharge rate at 90 minute retention time: 18,000 gal/90 min = 200 gal/min (Based on empty tank working dimensions.) CONSTRUCTION DEWATERING WASTEWATER Sewer clean-out or manhole discharge location as approved by local sewer agency. LOCAL SANITARY SEWER 1512_5135m_3-ASedSettlingTank-WeirCong1-GravityDischarges.ai ATTACHMENT 5 i ~ 3 _ -"v .. -----, - I• la. • • •• : •• • • • • !IS' • • • • • • • • • • • • •••••••••• ~ . . . . . . . . . .... ' • • • • •· • • e • C . . . . . . . . • .. •····· .... . •.. .... . . . . ... : ...... . ~-• !' • .• •. •.• ••••• ~ •••• I. -· "I • • •• ··• •• • 1.-.... : ,) I.Ji - -·• -· -.:·. I ~ -"v ---------..... ---------~----------------------¥----------..... --.... 1--.r-.-;;-.i--'I--~ 1•·· ••. ··•···=•·:•• •... . .... •··. .. . .... .... ,• ...... •.• .. ••····~ . . . . .. •. . . . . ·--•••~ ... . .-... ---.. . .. :-~----· -.~-. :. -.. 111 • Master Meter // 101 Regency Parkway // Mansfield, TX 76063 // www.mastermeter.com 1 OCTAVE ULTRASONIC METER® Features & Beneﬁts: • Flow sensitivity starting as low as 1/16 GPM • Grade 316 Stainless Steel or Epoxy Coated Ductile Iron body design provides full compliance with ANSI/NSF 372 (AB1953 or NSF61G) • No moving parts. Minimal ﬂow intrusion. Enduring accuracy. • No required strainer • Wide beam ultrasonic measurement sensors for high accuracy and reliable operation • Industry standard communication protocol for integration with most third-party AMR/AMI systems • Active leak, theft, backﬂow, meter damage/tamper, rate of ﬂow, and battery life indication • Detailed LCD display features immediate reporting and visual indicators for 8 critical conditions • Ruggedized NEMA 6P/IP-68+ construction; fully submersible design • Designed to meet standards for both North American and International C&I water meters • Optional ﬂow measurements; Forward Only, Net Volume or Alternating Display (Forward and Reverse Consumption displayed separately) Octave brings the latest in ultrasonic metering technology to Commercial/Industrial (C&I) water meters and puts precise measurement where the real ﬂows exist. An excellent alternative to mechanical compound, single-jet, ﬂoating ball, ﬁre-service type and turbine meters, Octave excels at maintaining sustained accuracy for the life of the meter while providing smart AMR capabilities. Technical Speciﬁcations: Working Pressure - 175 PSI Liquid Temperature - 32° - 122 °F Metrological Characteristics - Meets ANSI/AWWA Standard C750-10, ISO 4064 rev. 2005 Conﬁguration - Compact-Display built into unit Power Source - 2 x D Size Lithium Thionyl Chloride batteries - 10 year warranted life time Environmental Protection - NEMA 6P+ (IP68+), Ambient operation temp. -13 °F / +131 °F for the display Display Units - Multi line 9 digit LCD (Programmable USG, Cubic Feet, Cubic Meters, Acre Feet for volume and GPM, Lt/s, or M³/h for rate of flow) Output - Programmable single/dual open drain digital pulse, dry contact digital pulse, encoder OR externally powered loop 4-20 mA ATTACHMENT 6 ■ •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• ■ Master Meter // 101 Regency Parkway // Mansfield, TX 76063 // www.mastermeter.com 2 OCTAVE ULTRASONIC METER® Performance Data Dimensions Octave † Typical Extended Low Flow Normal Flow Range ‡ Continuous Linearity Range Nominal Size Starting Flow 95% - 105% Accuracy 98.5% - 101.5% Accuracy Safe Max Flow +/- 0.5% Maximum Deviation inch (mm)GPM (Lt/s)GPM (Lt/s)GPM (Lt/s)GPM (Lt/s)GPM (Lt/s) 2" (50mm) 1/16 (.004) 1/4 (.016) 1/2 - 250 (.032 - 15.77) 250 (15.77) 4 - 200 (.25 - 12.62) 3" (80 mm) 1/16 (.004) 1/2 (.032) 1 - 500 (.06 - 31.54) 500 (31.54) 5 - 350 (.32 - 22.08) 4" (100 mm) 1/16 (.004) 3/4 (.047) 1-1/2 - 1,000 (.09 - 63.09) 1000 (63.09) 15 - 700 (.94 - 44.16) 6" (150 mm) 3/4 (.047) 2 (.13) 3 - 1,600 (.19 - 100.94) 1,600 (100.94) 20 - 1,150 (1.26 - 72.55) 8" (200 mm) 3/4 (.047) 4 (.25) 5 - 2,800 (.32 - 176.65) 2,800 (176.65) 50 - 2,000 (3.15 - 126.18) 10" (250 mm) 2.5 (.16) 8 (.50) 14 - 5,500 (.88 - 346.99) 5,500 (346.99) 400 - 4,000 (25.24 - 252.36) 12" (300 mm) 2.5 (.16) 8 (.50) 14 - 5,500 (.88 - 346.99) 5,500 (346.99) 400 - 4,000 (25.24 - 252.36) † Starting flows vary per meter but can go as low as the above listed flow rates. ‡ Continuous Safe Max Flow ranges listed for the Octave are for accurate flow measurement only and do not limit the Octave from meeting the Short-term Deluge Flow for fire services. NOTE — For Performance charts please see Engineering Document - Octave | Version 8.13 Master Meter, Inc. Toll Free: 800.765.6518 Fax: 817.842.8100 innovate@mastermeter.com ® Model 2" SS 2" DI 3"4"6"8"10"12" (50 mm)(50 mm)(80 mm)(100 mm)(150 mm)(200 mm)(250 mm)(300 mm) 10"17"12"14"18"20"17 3/4"19 3/4" (250 mm)(432 mm)(305 mm)(356 mm)(457 mm)(508 mm)(451 mm)(502 mm) 5 3/4"5 3/4"7 1/2"9"11"13 1/2"16"19 3/4" (146 mm)(146 mm)(190 mm)(229 mm)(280 mm)(343 mm)(406 mm)(502 mm) 6 3/4"6 3/4"8 1/2"9 7/8"10 7/8"12 7/8"16 1/2"19 3/4" (172 mm)(172 mm)(216 mm)(250 mm)(276 mm)(327 mm)(419 mm)(502 mm) 2 1/8"2 1/8"3 1/2"4 1/2"5 1/8"6 3/8"8"9 7/8" (54 mm)(54 mm)(90 mm)(115 mm)(130 mm)(162 mm)(203 mm)(251 mm) 24 lbs.36 lbs.48.5 lbs.76 lbs.108 lbs.150 lbs.210 lbs. (11 kg)(16 kg)(22 kg)(34 kg)(49 kg)(68 kg)(96 kg) 15 lbs 28 lbs 40 lbs.62 lbs. 88 lbs. (7 kg)(13 kg)(18 kg)(28 kg)(40 kg) B - Width H - Height Nominal Size L - Length Octave N/A N/A N/A h - Height Weight - Stainless Steel Weight - Ductile Iron N/A ATTACHMENT 6 ■ L -e - ~T~MASTER i4v4\METER •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• ■ ATTACHMENT 7 Dimensions and Weights Capacity: 18,060 gal (430 bbl) Height: 13' Width: 8' Length: 46' 1" Tare Weight: 26,820 lbs Construction Bare steel interior 3" fill line Three (3) standard 22" side-hinged manways Multiple valved fill/drain ports, including floor-level valves for low point drain out Sloped and V bottom for quicker drain out and easier cleaning Fixed rear axle for increased maneuverability Nose rail cut-out for easy access when installing hose and fittings on the front/bottom of tank Open top for easy access to liquids being stored, pumped or treated Full-length catwalk equipped with safety rails and non-slip tread Two (2) front and two (2) rear 4" valved fill/drain ports We proudly provide specialty-containment and waste-management solutions, with industry-leading service, safety, access and integrity. Learn more at *Photos are representational; actual products vary. Additional product plans and specifications may vary from those shown and are subject to in-stock availability. Features Easy-to-clean smooth wall interior, no corrugations and no internal rods Non-slip step materials on ladderwells and catwalks "Safety yellow" rails and catwalks for high visibility Safe operation reminder decals Built-in stair and walkway Available in California Options Heating coils Level gauges (fixed or temporary) External or internal manifold White exterior for MSS compli- ance Audible alarms, strobes and level gauges (digital and mechanical) IRONCLAD ENVIRONMENTAL SOLUTIONS ATTACHMENT 7 STEEL TANK 18,000 Gallon Open-Top Tank [Q] Passenger Side 8'---- 0 0 Back 13' Stair Side *Some details not shown in all views. Overall dimensions are normal. *Photos are representational; actual products vary. Additional product plans and specifications may vary from those shown and are subject to in-stock availability. Learn more at 46' 1" IRONCLAD ENVIRONMENTAL SOLUTIONS Automated pH Treatment Fact Sheet www.watertectonics.com CA 1072749 • WA WATERI*002NN Specific Features Options Available • Process flowrate of 5gpm to 500gpm • Automated pH adjustment using CO2 gas or liquid acid/base solutions • Real-time influent and effluent pH monitoring • Mobile, rugged and purpose-built cabinet housing • Configured for flow-though or external process use • System status, data logging and alerts with email notification • EagleEye web portal for remote status and site management • PhatBox PLUS option includes chemical dosing capabilities for additional treatment chemistry • Internal voltage options • Containerized unit MANUFACTURING STANDARDS MOBILIZATION & OPERATION OPERATING RANGES Compliant with the Washington State Department of Ecology BMP C252 UL508 electrical certification CSA/CE available Easy setup and minimal maintenance Fully automated for 24x7 operations Field support available Simple 110V power connection pH: 0 – 14 s.u. Target Contaminants: pH PhatBox PLUS option also targets: Total Suspended Solids, Heavy Metals and Emulsified Oils (Please inquire for additional contaminants) ©2021 WaterTectonics. All rights reserved. TddT&+b(cdA O pHAT Box· The PhatBox is a pre-engineered, packaged water treatment system for automated pH adjustment. The PhatBox pH probes and injection point are mounted to the system’s internal plumbing. Water enters the PhatBox and passes by the influent pH probe. If the influent pH reading is outside of the desired range, a pH adjustment acid/base solution is injected into the passing stream and is rapidly blended through a static mixer. The effluent pH probe analyzes the treated water prior to discharge to ensure that the pH has been adjusted to the desired range and records the results on the system data logger. The PhatBox allows for in-line pH adjustment or remote location pH adjustment. Real-time pH monitoring and data recording provide users with important water quality logs. This turnkey system centralizes all required treatment components in a single cabinet, significantly reducing installation time and providing safe housing for sensitive digital probes and PLC controllers. The PhatBox system has been used on construction, remediation, and industrial sites across the United States and Canada. The PhatBox pH probes and injection point are mounted externally to the source pond, tank, or vault. Water in the source structure is analyzed by the influent pH probe. If the influent pH reading is outside of the desired range, a pH adjustment acid/base solution is injected and allowed to mix in the source structure. The effluent pH probe analyzes the treated water in the source structure to ensure that the pH has been adjusted to the desired range and records the results on the system data logger. FLOW-THROUGH CONFIGURATION EXTERNAL PROCESS CONFIGURATION SOURCE PhatBox POND/TANK/ VAULT InfluentSensor Acid/BaseAddition EffluentSensor pHatBox FLOW-THROUGH CONFIGURATION InfluentSensor Acid/BaseAddition EffluentSensor pHatBox EXTERNAL PROCESS CONFIGURATION PhatBox Discharge Discharge SOURCE PhatBox POND/TANK/ VAULT InfluentSensor Acid/BaseAddition EffluentSensor pHatBox FLOW-THROUGH CONFIGURATION InfluentSensor Acid/BaseAddition EffluentSensor pHatBox EXTERNAL PROCESS CONFIGURATION PhatBox Discharge Discharge www.watertectonics.com CA 1072749 • WA WATERI*002NN TddT&+b(cdA O .A.A.A.A.A.A. ~ ~ .A.A.A.A.A.A.A. : ~::..~::..~::..~::.t .......... . : • .I' A.A.A.A.A.A.A.A 0 0 .A.A.A.A.A.A.A. .AA.A.A.A.A./'<