STATUS OF POTABLE REUSE IN CALIFORNIA: HISTORY, REGULATIONS AND PROJECTS. Abstract. Key Words. Indirect Potable Reuse Projects in California
|
|
- Gwenda Johnston
- 6 years ago
- Views:
Transcription
1 STATUS OF POTABLE REUSE IN CALIFORNIA: HISTORY, REGULATIONS AND PROJECTS Ufuk G. Erdal, CH2M 6 Hutton Centre Dr. Suite 700, Santa Ana, CA uerdal@ch2m.com, Phone: Larry Schimmoller, CH2M, Englewood, C Abstract Non potable reuse to offset potable water demand is a century old concept in California. California is also one of the first States where indirect potable reuse (IPR) projects were implemented by injecting (groundwater injection) highly treated recycled water into the ground or using surface basins to spread recycled water (surface spreading). The State Water Resources Control Board Division of Drinking Water (DDW) (formerly CDPH) draft groundwater recharge regulations have helped water and wastewater agencies understand what requirements must be met to assure that public health will not be compromised. More than a dozen draft regulations was published which provided guidance for planning and implementation of the IPR projects in California since This paper provides a historical perspective on how the groundwater recharge regulations have evolved and type of projects implemented over the time and highlight current status of IPR via surface water augmentation and direct potable reuse regulations. Key Words DDW, groundwater recharge, IPR, potable reuse, regulations, water recycling Indirect Potable Reuse Projects in California California has led the nation in developing drought-resistant, sustainable water supplies through the use of water recycling by treating municipal wastewater for beneficial purposes such as irrigation, industrial uses, toilet flushing, and replenishing groundwater basins. Over 250 water recycling plants currently operate in the State, such as the Groundwater Replenishment System in Orange County. According to survey results released by the California State Water Resources Control Board in 2011, over 650,000 acre-feet of wastewater is being recycled in the State per year. California is now in the process of increasing the amount of recycled water used over the next two decades by an additional 1 to 2 million acre-feet per year (NWRI, 2013) California is also one of the first States where indirect potable reuse (IPR) projects were implemented by injecting (groundwater injection) highly treated recycled water into the ground or using surface basins to spread recycled water (surface spreading) to replenish groundwater. Planned IPR, discharge of recycled water to a drinking water source of supply with the intended purpose of augmenting the potable supply, has been practiced in California since 1962, and there are several IPR projects in California (Crook 2010). IPR is the augmentation of a drinking water source (surface water or groundwater) with recycled water followed by an environmental buffer 1
2 that precedes normal drinking water treatment. As shown in Table 1, the number of IPR projects has increased significantly in the last ten years and many other projects have already been planned or under construction. Augmenting surface water sources have not been implemented or permitted yet in California but development of the uniform criteria for IPR via surface water augmentation is underway. Therefore, all the IPR projects in Table 1 are groundwater recharge projects (either surface spreading or sub surface injection). Table 1. California IPR Projects (Adapted from Crook, 2010) Project/Agency Type of Potable Reuse Startup Date Projects Montebello Forebay Groundwater Recharge Project, Water Replenishment District of Southern California 1962 Water Factory 21, Orange County Water District (replaced by the Groundwater Replenishment System in 2008) West Coast Basin Barrier Project, West Basin Municipal Water District and Los Angeles County Department of Public Works Ely Basin Project, Inland Empire Utilities District (now part of the Chino Basin Groundwater Recharge Project) Alamitos Barrier Project (3 mgd), Water Replenishment District of Southern California Chino Basin Groundwater Recharge Project, Inland Empire Utilities Agency Harbor Water Recycling Project Dominguez Gap Project, City of Los Angeles Groundwater Replenishment System (70 mgd), Orange County Water District City of Oxnard GREAT Program Oxnard Water Purification Facility, City of Oxnard Silicon Valley Advanced Water Purification Center, Santa Clara Valley Municipal Water District and City of San Jose 2 and Currently blended with recycled water for non potable use. Designed to augment potable water supply in future (Commissioned) 2014
3 Groundwater Replenishment System Expansion (100 mgd), Orange County Water District Alamitos Barrier Project Expansion (8 mgd), Water Replenishment District of Southern California and Potable Reuse Regulatory Framework in California A Historical Perspective The use of recycled water is regulated by several agencies in California. The state laws and regulations have been passed to protect public health and the quality of the groundwater. State Water Resources Control Board s Divison of Drinking Water [DDW], formerly known as Department of Health Services [DHS] and California Department of Public Health [CDPH], regulates public water systems and develops criteria and rules for recycled water projects that include groundwater recharge projects. Regional Water Quality Control Boards (RWQCBs) issue permit and have ongoing oversight on groundwater recharge projects. There are total of 9 RWQCBs in California which are under State Water Resources Control Board (SWRCB). The SWRCB adapts plans and policies (i.e. Salt and Nutrient Management) that may impact groundwater recharge project. The Policies and plans that are adopted at the state level are often rolled down to the local RWQCBs (Forbes, 2011) Due to the potential for confusion and duplication of effort between CDPH & RWQCBs, CDPH & SWRCB signed a Memorandum of Agreement (MOA) in The MOA delineated responsibilities of each agency in review and approval of recycled water projects. According to the 1996 MOA, CDPH (now DDW) had following responsibilities (Forbes, 2011): Develops recycled water criteria Reviews recycled water proposals for compliance with Title 22 Criteria Provides requirements and recommendations to RWQCB for recycled water permits Coordinates with other agencies Interfaces with recycled water industry Reviews new and emerging technologies Collects fees from project applicants for CDPH reviews What are known as the Title 22 standards for water reclamation were first established under Title 22, Division 4, Environmental Health, in the California Administrative Code in These standards addressed types of use which included new uses, treatment levels, and performance and design parameters. The Tithe 22 document published in 1978 had a section (Section 60320) that contained three paragraphs and broadly regulated groundwater recharge with lacks of details (Forbes 2011). The first Draft regulations only covered surface spreading and injection projects were not considered to be acceptable at that time. 3
4 The pertinent requirements in 1978 Draft included the following main criteria for ground water recharge: Minimum of secondary treatment and granular activated carbon (GAC). 10-foot vadose zone (minimum). Meet drinking water standard. Chemical oxygen demand (COD) 5 mg/l (in the product water after recharge) Total organic carbon (TOC) 3 mg/l. Dilution: 50-percent reclaimed water. One-year residence time underground. In 1986, A Scientific Advisory Panel commissioned by the California State Water Resources Control Board, Department of Water Resources, and Department of Health Services was charged with defining the health significance of using reclaimed water for groundwater recharge, evaluate the benefits and risks associated with such recharge, and provide information needed to establish statewide criteria. In 1988, the first Draft Ground Water Recharge Regulations were proposed for surface spreading projects based on Scientific Advisory Panel recommendations. In this draft regulation (and all subsequent versions), dilution of the treated reclaimed water to meet the TOC requirement was found acceptable. The main requirements for groundwater recharge via surface spreading included (NWRI, 2012): Minimum treatment: oxidation, filtration, disinfection, carbon adsorption. GAC not required if dilution 20 percent. Meet drinking water standards. Total Nitrogen (TN) 10 mg/l. COD 5 mg/l. TOC 3 mg/l. One-year residence time underground. Distance to withdrawal = 500 feet. In 1989, some changes were made to the 1988 Draft and it extended to cover subsurface injection projects. GAC or reverse osmosis (RO) were specified as the required organics removal treatment processes. Requirements for included for the first time. Used formulas/tables to determine TOC requirement for spreading. TOC 1 mg/l for injection. In 2001, GAC treatment was no longer acceptable as the sole organics removal process for the subsurface injection. Subsequently, RO had become a standard process to meet TOC requirement since then (NWRI, 2012). 4
5 2002 Draft Groundwater Recharge Regulations reduced TOC Limit from 1 mg/l to 0.5 mg/l. The reduction of the acceptable TOC limit from 1.0 mg/l to 0.5 mg/l was principally due to a finding that N-Nitrosodimethylamine (NDMA) and 1,4-dioxane found in groundwater were caused by the recharge of recycled water at an operational groundwater recharge project (NWRI, 2012) In 2004, 2007 and 2008 Draft Regulations, additional tweaking made to the draft regulations to deal with total nitrogen (three methods to meet TN requirement) and monitoring requirements were established for notification level chemicals (i.e. NDMA, boron, chlorate, 1,4-dioxane, etc.) and chemicals of emerging concern (CECs). In 2008, for the entire recycled municipal wastewater stream, reverse osmosis treatment as well as subsequent advanced oxidation treatment was required to provide at minimum, a level of treatment equivalent to a 1.2 log NDMA reduction and a 0.5 log 1.4-dioxane reduction thru advanced oxidation. California Senate Bill 918 signed into law by the Governor and became effective in September 2010 required CDPH to adopt uniform water recycling criteria by December 31, 2013, for indirect potable reuse by groundwater recharge and to adopt uniform water recycled criteria by December 31, 2016, for indirect potable reuse by surface water augmentation. The bill also required CDPH to investigate and report on the feasibility of developing criteria for direct potable reuse by December 31, The main changes with the 2011 and 2013 Draft Groundwater Recharge Regulations were the requirements pertinent to pathogenic microorganisms for surface spreading and subsurface injection projects such that the recycled municipal wastewater used as recharge water for a GRRP receives treatment that achieves at least 12-log enteric virus reduction, 10-log Giardia cyst reduction, and 10-log Cryptosporidium oocyst reduction. The treatment train shall consist of at least three separate treatment processes. For each pathogen (i.e., virus, Giardia cyst, and Cryptosporidium oocyst), a separate treatment process may be credited with no more than 6-log reduction and shall achieve at least 1-log reduction and for each month retained underground, the recycled municipal wastewater or recharge water will be credited with 1-log virus reduction. A GRRP providing advanced treatment complying with section , that also demonstrates at least six months retention underground will be credited with 10-log Giardia cyst reduction and 10-log Cryptosporidium oocyst reduction. Starting by 2011, the Draft Regulations required that a reverse osmosis and advanced oxidation should minimum meet the following criteria: 1. A reverse osmosis membrane should be selected by project sponsor that demonstrates an average rejection of sodium chloride greater than or equal to 99.5 percent by RO, with a 15 percent recovery utilizing ASTM method D4194 RO permeate having TOC concentrations of 0.25 mg/l or less initially 2. For the reverse osmosis treatment process, a project sponsor shall propose, for Department review and approval, on-going performance monitoring (e.g. conductivity or TOC) that indicates when the integrity of the process has been compromised. The proposal shall include at least one form of continuous monitoring, as well as the 5
6 associated surrogate and/or operational parameter limits and alarm settings that indicate when the integrity has been compromised. 3. To demonstrate a sufficient oxidation process has been designed for implementation, a project sponsor shall: a) Perform an occurrence study on the project s municipal wastewater to identify indicator compounds and select a total of at least nine indicator compounds, with at least one from each of the functional groups in subparagraphs (A) through (I) below. The project sponsor shall submit an occurrence study protocol, as well as the subsequent results and chosen indicator compounds, to the Department for review and approval. (A) Hydroxy Aromatic (B) Amino/Acylamino Aromatic (C) Nonaromatic with carbon double bonds (D) Deprotonated Amine (E) Alkoxy Polyaromatic (F) Alkoxy Aromatic (G) Alkyl Aromatic (H) Saturated Aliphatic (I) Nitro Aromatic b) (Utilize an oxidation process that achieves optimal removal of the indicator compounds selected in paragraph (1) such that removal is no less than; 0.5-log (69 percent) for each indicator compound representing the functional groups in paragraph (1)(A) through (1)(G), and 0.3-log (50 percent) for each indicator compound representing the functional groups in paragraph (1) (H) and (1)(I). Before the release of the 2011 Draft Regulations, a notification limit of 10 ng/l was established by CDPH for NDMA in California. Because of this numeric limit, providing a minimum 1.2-log reduction through advanced oxidation was no longer required by the Draft Regulations released in 2011 and thereafter. Per SB 918, the Final Ground Water Recharge Regulations were established on June 2014 (a slight delay occurred compared to the anticipated completion date of Dec 2013). The main difference between 2014 Final and Previous two Drafts (2011 and 2013) are that the Final Regulations require only one method to comply with the total nitrogen limit of 10 mg/l in the recharge water. Substantial changes were made in the Final Regulations for describing reverse osmosis membrane selection criteria. The revised changes include: each membrane element used in the project has achieved a minimum rejection of sodium chloride of no less than 99.0 percent and an average (nominal) rejection of sodium chloride of no less than 99.2 percent, as demonstrated through Method A of ASTM International s method D (2008) using the following substitute test conditions: (A) tests are operated at a recovery of no less than 15 percent; 6
7 (B) sodium chloride rejection is based on three or more successive measurements, after flushing and following at least 30 minutes of operation having demonstrated that rejection has stabilized; (C) an influent ph no less than 6.5 and no greater than 8.0; and (D) an influent sodium chloride concentration of no greater than 2,000 mg/l, to be verified prior to the start of testing; and during the first month of full-scale operation the membrane produces a permeate having no TOC concentration greater than 0.25 mg/l, as verified through monitoring no less frequent than weekly. No changes were made to the AOP portion. All other specific requirements and a copy of June 2014 Ground Water Recharge Regulations can be found at Water Boards website Upcoming Regulations and Next Steps In 2013, the National Water Research Institute (NWRI) of Fountain Valley, a nonprofit organization, appointed state and national water industry experts to an independent, third-party Expert Panel to provide advice to the State of California on developing Water Recycling Criteria for indirect potable reuse (IPR) through surface water augmentation (SWA) by December and determining the feasibility of developing criteria for direct potable reuse (DPR) by December The Panel was originally formed on behalf of the Drinking Water Program of the CDPH. As of July 1, 2014, the Drinking Water Program was officially transferred from CDPH to the State Board and renamed as the Division of Drinking Water (DDW). IPR via surface water augmentation means the planned placement of recycled water into a surface water reservoir used as a source of domestic drinking water supply. Direct potable reuse is defined as the planned introduction of recycled water either directly into a public water system, as defined in Section of the Health and Safety Code, or into a raw water supply immediately upstream of a water treatment plant (NWRI, 2015). Unlike IPR, DPR does not include an environmental (natural) buffer such as groundwater or surface water (i.e. lake) but it considers incorporation of an engineered storage to provide ample time for monitoring and assessing integrity of the produced water. The developed criteria for surface water augmentation are expected to be similar to those required for the GWR via subsurface injection per the current GWR regulations. It is imperative that reuse community develop quick and reliable monitoring techniques (i.e. surrogates) to assess integrity of the produced water to ensure that drinking water is safe. One of the initial challenges with SWA is to define the maximum recycled water contribution and minimum dilution requirements for the drinking water reservoir. The other challenge is that what or how MCLs and action levels fit into the criteria since they apply at the tap and not at the delivery point to the augmented reservoir. A number of agencies (City of San Diego, City of Los Angeles) in California is considering implementation of the IPR via surface water augmentation and looking forward to see the 7
8 uniform criteria for SWA. The implementation of IPR via SWA projects will provide an important support for future DPR projects in California and around the nation. DPR is a technically feasible method of stabilizing water supplies for municipalities and agriculture; preventing, minimizing, or correcting environmental damage resulting from interbasin water transfers; and conserving energy. However, the application of DPR on a large scale may not be easy task thereby requiring a closed collaboration among water and wastewater industry to develop a planning process to examine the potential of DPR and impediments to its implementation (Schroeder et al. 2012). One of the major steps that should be taken by the water and wastewater industry is to develop closer ties with respect to the management of available water resources. As water distribution system modifications and replacements are planned and implemented, attention should be focused on appropriate locations within an existing system where engineered storage buffers or water purification plants can be located (e.g., near existing water treatment plants or other suitable locations within the service area). Studies should be undertaken to assess what blending ratios would be acceptable with the existing water supply to protect public health, maintain water quality, and control corrosion (Schroeder et al. 2012). References James Crook Regulatory Aspects of Direct Potable Reuse in California- A White Paper. National Water Research Institute Publications. April Cindy Forbes CDPH Ground Water Recharge Regulations. Edward Schroeder, George Tchobanoglous, Harold L. Leverenz, and Takashi Asano Direct Potable Reuse: Benefits for Public Water Supplies, Agriculture, the Environment, and Energy Conservation- A White Paper. National Water Research Institute Publications. January National Water Research Institute BDOC as a Performance Measure for Organics Removal in Groundwater Recharge of Recycled Water Final Report. September 26, National Water Research Institute Final Panel Meeting Report #5: Surface Water Augmentation IPR Criteria Review. June 2-3,
Groundwater Replenishment with Purified Water Injection Provides Drought Protection & Environmental Benefits
Groundwater Replenishment with Purified Water Injection Provides Drought Protection & Environmental Benefits Santa Margarita Groundwater Replenishment Project PNW AWWA Conference 3 May 2017 Presentation
More informationThe Ozone Process for Potable Reuse Applications. Mike Oneby, Erin Mackey, Wendy Broley
The Ozone Process for Potable Reuse Applications Mike Oneby, Erin Mackey, Wendy Broley Outline Definitions US Regulations Log Removal Credits Potable Reuse Treatment Trains Case Study: City of Los Angeles
More informationIPR Case Studies and Issues for DPR
IPR Case Studies and Issues for DPR WateReuse 2013 San Diego Chapter May 8, 2013 San Diego, California Greg Bradshaw Innovative Solutions for Water and the Environment Agenda AWT, AWPF or FAT Public Perception
More informationIndependent Advisory Panel Meeting: Soquel Creek Water District s Groundwater Replenishment Study Meeting #1 February 27, 2017
Independent Advisory Panel Meeting: Soquel Creek Water District s Groundwater Replenishment Study Meeting #1 February 27, 2017 Jeff Mosher National Water Research Institute jmosher@nwri-usa.org 1 Overview
More informationIPR and DPR Drivers and Opportunities. Andrew Salveson, P.E. Vice President Water Reuse Practice Director
IPR and DPR Drivers and Opportunities Andrew Salveson, P.E. Vice President Water Reuse Practice Director 10/2011 10/2012 10/2013 Filename.ppt/2 10/2014 10/2015 10/2016 Carollo and Water Reuse Carollo ranks
More informationPOTABLE REUSE CRITERIA DEVELOPMENT
POTABLE REUSE CRITERIA DEVELOPMENT IN CALIFORNIA Bob Hultquist TYPES OF POTABLE REUSE Conventional (unplanned) waste discharges to a source of supply Indirect (IPR) replenish or augment a groundwater or
More informationDirect Potable Reuse
Success Implementation of Direct Potable Reuse December 4, 2015 Andy Salveson asalveson@carollo.com mmwd1013i1.pptx/1 Thanks to Jeff Mosher, Eva Steinle Darling, George Tchobanoglous, and Shana Epstein,
More informationWATER QUALITY STATUTORY AND REGULATORY COMPLIANCE OVERVIEW
CHAPTER 3 WATER QUALITY STATUTORY AND REGULATORY COMPLIANCE OVERVIEW Table 3-1 Proposed Project Treatment Barriers As described in Chapter 2, Project Description, the Pure Water Monterey Groundwater Replenishment
More informationSan Diego s Advanced Water Purification Demonstration Project: Performance & Integrity
Arizona Water Association Water Treatment Committee Seminar Series Next Horizons in Water Treatment Wednesday February 11 th, 2015 GateWay Community College San Diego s Advanced Water Purification Demonstration
More informationCity of San Diego Pure Water Project October 2014
City of San Diego Pure Water Project October 2014 SDCTA Position: SUPPORT Rationale for Position: Substantial study has demonstrated a potable reuse project within the City of San Diego would be safe,
More informationOcean Outfall Rule Compliance. Piloting Alternative Technologies for Recharge of the Floridan Aquifer. July 8, PD-Sw202w
Ocean Outfall Rule Compliance Piloting Alternative Technologies for Recharge of the Floridan Aquifer July 8, 2014 1 Outfall rule mandates are significant Reduce outfall nutrients by December 31, 2018 Eliminate
More informationSubsurface Desalination Intake & Potable Reuse Feasibility Studies. TAP Workshop #3 City of Santa Barbara, California October 26, 2016
Subsurface Desalination Intake & Potable Reuse Feasibility Studies TAP Workshop #3 City of Santa Barbara, California October 26, 2016 Agenda Feasibility Study Background & Objectives Update following TAP
More informationAppendix D Pure Water Monterey Groundwater Replenishment Project Water Quality Statutory and Regulatory Compliance Technical Report
Appendix D Pure Water Monterey Groundwater Replenishment Project Water Quality Statutory and Regulatory Compliance Technical Report Pure Water Monterey GWR Project April 2015 Draft EIR Denise Duffy & Associates,
More informationOcean Outfall Rule Compliance. Piloting Alternative Technologies for Recharge of the Floridan Aquifer. June 20, PD-Sw202w
Ocean Outfall Rule Compliance Piloting Alternative Technologies for Recharge of the Floridan Aquifer June 20, 2014 PD-Sw202w 1 City of Hollywood SRWWTP was significantly affected by the Ocean Outfall Rule
More informationCALIFORNIA S DRAFT CRITERIA FOR GROUNDWATER RECHARGE WITH RECYCLED WATER & EMERGING CONTAMINANTS. September 30, 2009
CALIFORNIA S DRAFT CRITERIA FOR GROUNDWATER RECHARGE WITH RECYCLED WATER & EMERGING CONTAMINANTS September 30, 2009 Gary Yamamoto, P.E. Division of Drinking Water and Environmental Management California
More informationPotable Water Reuse. Status of Indirect and Direct. DWR Drought Response Workshop February 26, 2015
Status of Indirect and Direct Potable Water Reuse DWR Drought Response Workshop February 26, 2015 mmwd1013i1.pptx/1 Andrew Salveson & Jeff Mosher asalveson@carollo.com mmwd1013i1.pptx/2 2 Status of Response
More informationIssues in the Provision of Sanitation Services and Wastewater Reuse Iranian/US Workshop on Water Management
Issues in the Provision of Sanitation Services and Wastewater Reuse Iranian/US Workshop on Water Management William R. Mills, General Manager, Retired (1987 2002) Orange County Water District August, 2008
More informationWater Reuse in the USA. Shivaji Deshmukh, P.E. Orange County Water District Istanbul, Turkey March 20, 2009
Water Reuse in the USA Shivaji Deshmukh, P.E. Orange County Water District Istanbul, Turkey March 20, 2009 Water Reuse in the USA Whittier Narrows Orange County Water District Irvine Ranch Water District
More informationThe Evolution of the World s Largest Advanced Water Purification Project for Potable Reuse
The Evolution of the World s Largest Advanced Water Purification Project for Potable Reuse Denis R. Bilodeau, P.E. President Orange County Water District July 30, 2018 ORANGE COUNTY WATER DISTRICT (OCWD)
More informationGuidance Framework Document for Direct Potable Reuse in Arizona
Guidance Framework Document for Direct Potable Reuse in Arizona Jeff Mosher National Water Research Institute jmosher@nwri-usa.org About NWRI 501c3 Nonprofit located in Fountain Valley, CA Experience with
More informationRandy Barnard Division of Drinking Water, Recycled Water Unit State Water Resources Control Board P.O. Box 100 Sacramento, CA
May 18, 2018 Randy Barnard Division of Drinking Water, Recycled Water Unit State Water Resources Control Board P.O. Box 100 Sacramento, CA 95812-100 Sent via email to: DDWrecycledwater@waterboards.ca.gov
More informationMeeting California s Water Needs
California Urban Water Agencies Meeting California s Water Needs Water Reuse Update March 2014 Updated October 2014 On the cover (clockwise from top-left): SFPUC s Living Machine enables building-scale
More informationIndirect Reuse with Multiple Benefits The El Monte Valley Mining, Reclamation, and Groundwater Recharge Project
ABSTRACT & POWERPOINT PRESENTATION Indirect Reuse with Multiple Benefits The El Monte Valley Mining, Reclamation, and Groundwater Recharge Project Tim Smith Principal Engineer Helix Water District La Mesa,
More informationNATIONAL WATER RESEARCH INSTITUTE. Final Panel Meeting Report #5: Surface Water Augmentation IPR Criteria Review
NATIONAL WATER RESEARCH INSTITUTE Final Panel Meeting Report #5: Surface Water Augmentation IPR Criteria Review Based on an Expert Panel Meeting Held June 2-3, 2015 (Expert Panel Meeting #5) Prepared By:
More informationMEETING HANDOUT. Meeting: Board of Directors Meeting. Date: April 21, 2017
MEETING HANDOUT Meeting: Board of Directors Meeting Date: April 21, 2017 AMENDED IN ASSEMBLY APRIL 18, 2017 AMENDED IN ASSEMBLY MARCH 23, 2017 california legislature 2017 18 regular session ASSEMBLY BILL
More informationATTACHMENT 1. MRWPCA Responses to August 22, 2016 Public Hearing Comments
ATTACHMENT 1 MRWPCA Responses to August 22, 2016 Public Hearing Comments Responses Related to Pure Water Monterey Groundwater Replenishment Project MRWPCA Letter to DDW September 16, 2016 Topics #1, #2:
More informationNext Steps in Potable Reuse for Padre Dam. WateReuse San Diego Chapter Meeting October 9, 2013
Next Steps in Potable Reuse for Padre Dam WateReuse San Diego Chapter Meeting October 9, 2013 Presentation Outline District Description IPR Program Santee Basin Status Full Advanced Treatment Demonstration
More informationRegulatory & Research Aspects of the San Gabriel Valley Indirect Reuse Replenishment Project (IRRP)
Regulatory & Research Aspects of the San Gabriel Valley Indirect Reuse Replenishment Project (IRRP) CA-NV AWWA AFC15 Session 12A Research 10:00 am October 28, 2015 Outline Background Project Description
More informationSFPUC Technology Transfer Workshop. By Stefan Cajina, Regional Engineer Division of Drinking Water State Water Resources Control Board
SFPUC Technology Transfer Workshop By Stefan Cajina, Regional Engineer Division of Drinking Water State Water Resources Control Board November 2014 What s New for the State? The Division of Drinking Water
More informationRealizing the Potential of Potable Water Reuse
Realizing the Potential of Potable Water Reuse Water Science and Technology Board 35th Anniversary December 5, 2017 Washington, DC Jeff Mosher, Water Environment & Reuse Foundation David Sedlak, University
More informationChemical Contaminants in Treated Wastewater including Groundwater Dimension
Chemical Contaminants in Treated Wastewater including Groundwater Dimension Jörg E. Drewes (Germany) Chair, IWA Water Reuse Specialist Group Water Reuse in Agricultural Irrigation and Aquifer Recharge
More informationOrange County Chapter
Orange County Chapter Potable Reuse for Inland Applications: Pilot Testing Results from a New Potable Reuse Treatment Scheme (WRRF-13-09) Ufuk G. Erdal, Ph.D., PE, CH2M HILL December 18, 2014 Outline Potable
More informationDecentralized Scalping Plants
Decentralized Scalping Plants Kirstin Byrne College of Engineering, California State University Long Beach 1250 Bellflower Blvd., Long Beach, CA 90840 (714) 580-0364; klb.byrne@gmail.com Abstract: With
More informationScience Advisory Panel for CECs in Recycled Water
Science Advisory Panel for CECs in Recycled Water July 19-21, 2017 Southern California Coastal Water Research Project http://sccwrp.org/researchareas/contaminants/ RecycledWaterAdvisoryPanel.aspx HOUSEKEEPING
More informationEl Paso s Advanced Water Purification Facility America s First Direct-to-Distribution Potable Reuse
El Paso s Advanced Water Purification Facility America s First Direct-to-Distribution Potable Reuse WESTCAS 2017 Fall Conference October 25, 2017 - Tucson, AZ Presentation Outline Water Resources and Challenges
More informationFinal Panel Meeting Report #4: Surface Water Augmentation IPR Criteria Review
NATIONAL WATER RESEARCH INSTITUTE Volume I Final Panel Meeting Report #4: Surface Water Augmentation IPR Criteria Review Based on an Expert Panel Meeting Held March 11-12, 2015 (Expert Panel Meeting #4)
More informationReuse and Desalination Technologies to Improve the Sustainability of Drinking Water Supplies
Reuse and Desalination Technologies to Improve the Sustainability of Drinking Water Supplies Marty Allen, Ph.D. 1 Director of Technology Transfer Awwa Research Foundation 1. Introduction Sustainability,
More informationReuse and Desalination Technologies to Improve the Sustainability of Drinking Water Supplies
the Sustainability of Drinking Water Supplies Marty Allen, Ph.D. 1 Director of Technology Transfer Awwa Research Foundation 1. Introduction Sustainability, in its most fundamental definition, is the ability
More informationPathogen Removal Mechanisms and Pathogen Credits in MBR-Based Potable Reuse Trains
Pathogen Removal Mechanisms and Pathogen Credits in MBR-Based Potable Reuse Trains Ufuk G. Erdal, PhD, PE 2017 NWRI Clarke Conference 10/20/2017 1 Outline Background Objectives Comparison of Pathogen Credits
More informationWater Reuse Terminology
Water Reuse Terminology Produced by the ACWA Communications Committee Recycled Water Work Group June 2016 With water reuse playing an increasingly important role in California s water supply portfolio,
More informationJeff Mosher National Water Research Institute Drought Response Workshop Newport Beach, CA May 17, 2016
Jeff Mosher National Water Research Institute jmosher@nwri-usa.org Drought Response Workshop Newport Beach, CA May 17, 2016 Our Goal: Water Resiliency and Reliability Reliable, drought-proof water supplies
More informationProp 50 Project Completion Report Project 50-4 Ray Stoyer Water Recycling Facility Demonstration Project
Prop 50 Project Completion Report Project 50-4 Ray Stoyer Water Recycling Facility Demonstration Project June 1, 2016 Presentation to IRWM Regional Advisory Committee Padre Dam s IPR Program Goals Produce
More informationWater Advisory Board. May 10, 2016
Water Advisory Board May 10, 2016 Background on potable reuse implementation and technology Indirect potable reuse (IPR) Other Water Sources Environmental Buffer Water Treatment Drinking Water Wastewater
More informationTechnical Memorandum 3 POTABLE REUSE PLANNING TOOLS AND CASE STUDIES
WateReuse Colorado Advancing Direct Potable Reuse to Optimize Water Supplies and Meet Future Demands Technical Memorandum 3 POTABLE REUSE PLANNING TOOLS AND CASE STUDIES FINAL September 2018 WateReuse
More informationIPR/Reservoir Augmentation Reservoir Storage Permitting Issues. Michael R. Welch, Ph.D., P.E.
IPR/Reservoir Augmentation Reservoir Storage Permitting Issues Michael R. Welch, Ph.D., P.E. Focus of today s discussion: Present overview of reservoir-related regulations for indirect potable reuse/reservoir
More informationAdvanced Oxidation with UV Light and Peroxide for Indirect Potable Water Reuse
Advanced Oxidation with UV Light and Peroxide for Indirect Potable Water Reuse David Murray, Brown and Caldwell Robert Chalmers, CDM Mehul Patel, OCWD October 27, 2010 Pacific Northwest Clean Water Association
More informationThe National Trend towards Direct Potable Reuse
The National Trend towards Direct Potable Reuse RMWEA/RMSAWWA JTAC March 19, 2015 Larry Schimmoller/CH2M Hill Global Technology Leader for Water Reuse John Rehring/Carollo Vice President Agenda Introduction
More informationWater Reliability for Tucson s Future
Water Reliability for Tucson s Future Water Supply Water Quality Water Operations Customers & Systems Water Conservation & Efficiency Water Resources Research Center March 9, 2015 Water Reliability means
More informationSummary of Florida s Indirect Potable Reuse Regulations Part V
Summary of Florida s Indirect Potable Reuse Regulations 62-610 Part V David Ammerman, Carollo Engineers, Inc. Jeff Greenwell, Hillsborough County MARCH 16, 2018 Florida Administrative Code Chapters Chapter
More informationGroundwater Recharge Permits Past, Present, Future
Groundwater Recharge Permits Past, Present, Future January 22, 2008 Southern California Alliance of POTW (SCAP) Hoover Ng, Water Replenishment District Presentation Outline WRD Past - Montebello Forebay
More informationDeveloping the Design Basis for the World s Largest Full-Scale UV/HOCl AOP System
Developing the Design Basis for the World s Largest Full-Scale UV/HOCl AOP System David Hokanson, Ph.D., P.E. 1, Yan Qu, Ph.D. 1, Aleks Pisarenko, Ph.D. 2, Shane Trussell, Ph.D., P.E. 2, Anthony Van 3
More informationAPPENDIX C 2012 RECYCLED WATER FEASIBILITY STUDY PUBLIC COMMENT RESPONSES
APPENDIX C 2012 RECYCLED WATER FEASIBILITY STUDY PUBLIC COMMENT RESPONSES Prepared by: Dennis Delzeit, P.E., Project Manager Reviewed by: Tom Falk, P.E., Dudek Date: April 26, 2012 1. Can the treated effluent
More information8-5. Special Committee on Desalination and Recycling. Board of Directors. 3/9/2010 Board Meeting. Subject. Description
Board of Directors Special Committee on Desalination and Recycling 3/9/2010 Board Meeting Subject Authorize (1) Joint Groundwater Replenishment Study; (2) a professional services agreement to conduct the
More informationTransforming Wastewater to Drinking Water: How Two Agencies Collaborated to Build the World s Largest Indirect Potable Reuse Project
Transforming Wastewater to Drinking Water: How Two Agencies Collaborated to Build the World s Largest Indirect Potable Reuse Project Adam Hutchinson, P.G., C.HG. Recharge Planning Manager April 13, 2017
More informationAPPENDIX A. Significant Policies, Rules, and Regulations
Introduction APPENDIX A Significant Policies, Rules, and Regulations The development of recycled water is strongly influenced by political, regulatory, and economic factors. Recycled water policies shape
More informationRecycled Water Managed Aquifer Recharge in California
Recycled Water Managed Aquifer Recharge in California Segunda Jornada Technicas sobre la Recarga Artificial de Acuiferos y Reuso De Agua Torre de Ingeneria, UNAM, Mexico D.F. 28 y 29 de agosto de 2013
More informationIncreasing Acceptance of Direct Potable Reuse as a Drinking Water Source in Ventura, CA
Increasing Acceptance of Direct Potable Reuse as a Drinking Water Source in Ventura, CA Proposers Client Catherine Iantosca, MESM 2016 Ryan Kintz, MESM 2012 Sustainable Water Markets Fellow Environmental
More informationEngineering and Operations Committee Item 6b September 10, 2018
Engineering and Operations Committee Item 6b September 10, 2018 CA Recycled Water Regulatory Framework Demonstration Project Activities Regulatory Collaboration Testing Approach Independent Scientific
More informationWater Tomorrow: Foundational Actions Funding Program Metropolitan Water District of Southern California February 23, 2017
Water Environment & Reuse Foundation s Direct Potable Reuse Initiative Jeff Mosher Chief Research Officer Water Environment & Reuse Foundation jmosher@werf.org Water Tomorrow: Foundational Actions Funding
More informationDirect Potable Reuse
mmwd1013i1.pptx/1 Regional and National Updates for Direct Potable Reuse Presented by Danny Murphy. Authored by Andy Salveson. Many thanks to Clean Water Services asalveson@carollo.com mmwd1013i1.pptx/2
More informationSection 1: Introduction
Section 1: Introduction The Salt and Nutrient Management Plan (SNMP) for the Antelope Valley (AV) has been prepared in cooperation with the water and wastewater agencies, the cities of Lancaster and Palmdale,
More informationPotential Regional Recycled Water Supply Program:
Metropolitan Water District of Southern California Potential Regional Recycled Water Supply Program: Historical Review and 2015 Update Version 1.8 WORKING DRAFT Table of Contents 1 Introduction... 1-1
More informationWater Reuse: Solution for Water Supply
Water Reuse: Solution for Water Supply Chamindra Dassanayake (CD), PhD, P.E. Kevin Alexander, P.E. August 22, 2014 The Membrane Technology Consultants Overview Water Reuse Definitions Drivers Mature Technology
More informationWATER RECYCLING AND POTABLE REUSE
WATER RECYCLING AND POTABLE REUSE WHITE PAPER Bay Area Water Supply and Conservation Agency July 2017 Table of Contents 1. Introduction 1 2. Terminology 2 a. Common Terms... 2 3. Regulatory Framework...
More informationDPR: Sustainable Water for California s Future. Jennifer West WateReuse California November 9, 2016
DPR: Sustainable Water for California s Future Jennifer West WateReuse California November 9, 2016 Promotes responsible stewardship of California's water resources by maximizing the safe, practical and
More informationAGENDA 1. DETERMINATION OF A QUORUM
SPECIAL MEETING OF THE WATER RESOURCES COMMITTEE OF THE BOARD OF DIRECTORS WATER REPLENISHMENT DISTRICT OF SOUTHERN CALIFORNIA 4040 PARAMOUNT BOULEVARD, LAKEWOOD, CALIFORNIA 90712 9:30 A.M., THURSDAY,
More informationAs Needed Technical Engineering and Environmental Services for East County Regional Potable Reuse Project. Pre Proposal Meeting August 27, 2015
As Needed Technical Engineering and Environmental Services for East County Regional Potable Reuse Project Pre Proposal Meeting August 27, 2015 Presentation Outline Introductions Padre Dam MWD Description
More informationDirect Potable Reuse. Drivers, Regs, and Economics. RMWEA/RMSAWWA JTAC Luncheon. John Rehring, P.E. Denver, CO March 19, 2015
Direct Potable Reuse Drivers, Regs, and Economics RMWEA/RMSAWWA JTAC Luncheon Denver, CO March 19, 2015 John Rehring, P.E. Potable Reuse Indirect Potable Reuse Environmental Buffer DPR mmwd1013i1.pptx/2
More informationPROGRESS REPORT ON PRELIMINARY BRINE DISPOSAL SCREENING ANALYSIS
PROGRESS REPORT ON PRELIMINARY BRINE DISPOSAL SCREENING ANALYSIS MAY 2015 SUMMARY In 2002, the California Regional Water Quality Control Board-Los Angeles Region ( Regional Board ), a state agency, adopted
More informationRecycled Water Intertie Study. Final Report
Recycled Water Intertie Study Final Report Prepared by: In Association with: John Robinson Consulting, Inc. March 2015 This page intentionally left blank. Page 1 of 176 Table of Contents Executive Summary...
More informationUsing Municipal Reclaimed Water for Cooling Water Applications: Review of Two Case Studies
Using Municipal Reclaimed Water for Cooling Water Applications: Review of Two Case Studies McIlvaine Company Hot Topic Hour on Power Plant Cooling Towers and Cooling Water Issues Thursday Feb. 16, 2012
More informationThe Role of Potable Reuse as a Sustainable Water Supply Alternative
California Nevada Section Annual Fall Conference October 23, 2014 Reno, NV The Role of Potable Reuse as a Sustainable Water Supply Alternative Jeff Mosher, NWRI Executive Director Fountain Valley, CA jmosher@nwri-usa.org
More informationFrom No to Go. Getting a Direct Potable Reuse (DPR) Project Approved and Operational in Texas
From No to Go Getting a Direct Potable Reuse (DPR) Project Approved and Operational in Texas Wichita Falls Overview Population 104,000 Serves Total 150,000 customers 104,000 City of WF 36,000 Potable Wholesale
More informationAs such, the following phases and Tasks will be completed as part of this Scope of Work:
Scope of Work Document as prepared by Hazen and Sawyer, P.C. Development of Operation and Maintenance Plan and Training and Certification Framework for Direct Potable Reuse (DPR) Systems (WRRF-13-13) In
More informationOklahoma Department of Environmental Quality Water Quality Division. Patty S. Thompson, P.E. Water Pro Conference September 30, 2015
Oklahoma Department of Environmental Quality Water Quality Division Patty S. Thompson, P.E. Water Pro Conference September 30, 2015 In 2010, several things happened in Oklahoma to bring about an interest
More informationExpanding Potable Reuse Opportunities with a New Approach
Expanding Potable Reuse Opportunities with a New Approach October 3 rd 2013 Shane Trussell, Ph.D., P.E., BCEE Background - California Water Systems Fueled California economy All had unintended consequences
More informationNOTICE OF PREPARATION. California Office of Planning and Research, Responsible Agencies, Trustee Agencies, and Other Interested Parties
COUNTY SANITATION DISTRICTS OF LOS ANGELES COUNTY 1955 Workman Mill Road, Whittier, CA 90601-1400 Mailing Address: P.O. Box 4998, Whittie r, CA 90607-4998 Telephone: (562) 699-7411, FAX: (562) 699-5422
More informationWastewater ENVIRONMENTAL SETTING. Wastewater Collection
4.15.3.1 ENVIRONMENTAL SETTING Wastewater Collection The City owns, operates, and maintains the local sewer lines that collect wastewater generated within the City. The existing sewer lines include a gravity
More informationTexas Municipal League Water Conference
Texas Municipal League Water Conference January 8, 2015 Darron Leiker City Manager Wichita Falls, Texas Water Supply Summary Population served w/ water ~ 150,000 Includes 15 wholesale customers Area cities
More informationCITY OF SCOTTSDALE WATER CAMPUS ADOPTED NANOCOMPOSITE RO MEMBRANES FOR INDIRECT POTABLE REUSE. Abstract
CITY OF SCOTTSDALE WATER CAMPUS ADOPTED NANOCOMPOSITE RO MEMBRANES FOR INDIRECT POTABLE REUSE Dian Tanuwidjaja, LG Chem, 21250 Hawthorne Blvd., Suite 330, Torrance, CA 90503 dtan@lg-nanoh2o.com, Ph: 424-218-4020
More informationDRAFT Master Water Reclamation Plan. City Council Meeting March 28, 2017
DRAFT Master Water Reclamation Plan City Council Meeting March 28, 2017 Presentation Overview Tonight s Overall Goals Acknowledge Input City has Received Reminder: Where We are in the Process Present the
More informationCHANGING ATTITUDES AND MANAGEMENT OF RECLAIMED WATER. Don Vandertulip, PE, BCEE Vandertulip WateReuse Engineers
CHANGING ATTITUDES AND MANAGEMENT OF RECLAIMED WATER Don Vandertulip, PE, BCEE Vandertulip WateReuse Engineers July 17, 2015 Discussion Context 1950 1970 1990 2010 1950 s Drought Return Flows 1968 Water
More informationEvaluation of Direct Potable Reuse for the State of California
Preface P.1 Interest in Direct Potable Reuse Planned potable reuse is a strategy used to augment public water supplies with highly treated municipal wastewater (or advanced treated water ). One form of
More informationArmy Water Reuse Policy A Decision Document
Army Water Reuse Policy A Decision Document Environment, Energy & Sustainability Symposium Denver, CO 14-17 June 2010 Richard J. Scholze U.S. Army Corps of Engineers Construction Engineering Research Laboratory
More informationCity of Redlands Wastewater Treatment Plant. Redlands, CA LOCATION: Carollo Engineers; CH2M HILL MBR MANUFACTURER: COMMENTS:
FACILITY: City of Redlands Wastewater Treatment Plant LOCATION: Redlands, CA GEO. AREA: Southern California STATUS 07/14: Operational CONSTRUCTION: ENGINEERING: Carollo Engineers; CH2M HILL MBR MANUFACTURER:
More informationOverview of Water Reuse
Overview of Water Reuse James Crook, Ph.D., P.E. Environmental Engineering Consultant Boston, Massachusetts USA Atlanta, Georgia 11 July 2006 Drivers for Reuse Principal driver is water stress (need for
More informationIndirect Potable Reuse for Groundwater Recharge Succession Strategy for Recycled Water
EASTERN MUNICIPAL WATER DISTRICT Indirect Potable Reuse for Groundwater Recharge Succession Strategy for Recycled Water Paul D. Jones II, P.E. General Manager, Eastern Municipal Water District March 11,
More informationWhere is it? Groundwater Replenishment System Map
What is the Ground Replenishment (GWR) System? Orange County Ground Replenishment System s Environmental Impact Assessment GWR is a new project (approved October 2002) of the Orange County Water District
More informationBrackish Desalination Water Supply Planning for Resiliency and Growth
Brackish Desalination Water Supply Planning for Resiliency and Growth Joe Mouawad, P.E. November 17, 2016 1 emwd.org EMWD Overview Established in 1950 Unique agency, serving: Water/wastewater/recycled
More informationA WHITE PAPER Potable Reuse Operator Training and Certification Framework January table of contents //
A WHITE PAPER Potable Reuse Operator Training and Certification Framework January 2016 table of contents // 1 Executive Summary 2 Introduction 3 Operator Certification Survey 4 Current Operator Certification
More informationSouth Orange County Wastewater Authority JPA, Ten Member Agencies El Toro Water District Trabuco Canyon Water District Moulton Niguel Water District i
New Recycled Water Regulations June 2009 Presented at SARBS technical conference 06/11/09 Brennon Flahive bflahive@socwa.com Environmental Compliance Administrator South Orange County Wastewater Authority
More informationReclaimed Water. While the number and capacity of reclaimed water facilities is increasing, much of the potential as a resource remains underutilized.
Reclaimed Water Issue Definition The Florida Department of Environmental Protection (FDEP) defines reclaimed water as water that has received at least secondary treatment and basic disinfection and is
More informationLOW FOULING REVERSE OSMOSIS MEMBRANES: EVIDENCE TO THE CONTRARY ON MICROFILTERED SECONDARY EFFLUENT
LOW FOULING REVERSE OSMOSIS MEMBRANES: EVIDENCE TO THE CONTRARY ON MICROFILTERED SECONDARY EFFLUENT ABSTRACT Kevin L. Alexander, P.E., Separation Processes, Inc., San Marcos, CA Steve Alt, Separation Processes,
More informationNotice of Public Hearing. Notice of Public Hearing
2015 URBAN WATER MANAGEMENT PLAN Table 8-2: Notification to Cities and Counties Retail: Notification to Cities and Counties City Name 60 Day Notice Notice of Public Hearing Dana Point Mission Viejo County
More informationCity of Wichita Falls Water Conservation and Emergency Direct Potable Reuse. Daniel K. Nix Utilities Operations Manager
City of Wichita Falls Water Conservation and Emergency Direct Potable Reuse Daniel K. Nix Utilities Operations Manager The Last Drought 1995-2000 Lessons Learned City constructed Reverse Osmosis Plant.
More informationDesalination. Section 10 SECTION TEN. Desalination
SECTION TEN Desalination Section 10 Desalination SECTION 10 Desalination West Basin s experience in recycled water treatment includes substantial knowledge on methods used for the removal of salt from
More informationIntegrated Ozone Enhanced Biofiltration for Water Reuse
Integrated Ozone Enhanced Biofiltration for Water Reuse Abigail Antolovich WateReuse AZ Conference 2016 Flagstaff, AZ Agenda Potable Reuse Overview Advanced Treatment for Water Reuse Performance Data The
More informationEvaluation of Risk Reduction Principles to Direct Potable Reuse
Evaluation of Risk Reduction Principles to Direct Potable Reuse WateReuse Research Association Webinar November 14, 2013 Andy Salveson, P.E. Erin Mackey, Ph.D., P.E. Acknowledgements Sponsor. o WateReuse
More informationLeague of California Cities City Attorneys Conference
League of California Cities City Attorneys Conference May 4, 2018 San Diego, CA Municipal Water Reuse In An Increasing Complex Regulatory Environment Prepared by Stephanie Hastings Dylan Johnson Brownstein
More informationCity of San Diego Public Utilities Department. Validating Monitoring Technologies to Ensure Integrity in Potable Reuse
City of San Diego Public Utilities Department Validating Monitoring Technologies to Ensure Integrity in Potable Reuse Project Proposal Metropolitan Water District of Southern California MWD Foundational
More information