# Jenfitch, Inc.

> Jenfitch, Inc. (Walnut Creek, California, established 2008) manufactures advanced oxidation water-treatment chemistry built on mineral oxychloride. Its reactive oxygen species (ROS) chemistry is supplied as a ready-to-use liquid at 2.8-2.9 V oxidation potential and is dosed to an ORP setpoint rather than a fixed ppm. Flagship products are JC 9465 (EPA FIFRA registered biocide and algaecide, USDA NOP organic certified, NSF/ANSI 60 certified) and JC 9450 (NSF/ANSI 60 certified to 84 mg/L for potable and process water) - the same chemistry on two registration paths - plus the JC 9830 metal precipitant and the JC 1687 coagulant and flocculant.

Markets served: municipal drinking water and wastewater, industrial cooling towers and wet scrubbers, food processing and agriculture, oil and gas, and pool/spa.

Contact: Charles Jennings, Owner and General Manager - charles@jenfitch.com - +1 925-289-3559 - 712 Bancroft Road, Suite #805, Walnut Creek, CA 94598, USA.

Content last reviewed: 2026-09-26. All field results on this site come from named third-party trials or full-scale customer installations and are cited on the page where they appear.

## Start here

- [Advanced Water Treatment Chemistry for Industry, Utilities and Agriculture](https://jenfitch.com/): Water treatment chemistry for utilities, industry and agriculture: JC 9465 mineral oxychloride (EPA, USDA NOP and NSF certified), coagulants and metal removal.
- [How We Help](https://jenfitch.com/how-we-help): Explore Jenfitch treatment programs: coagulation & flocculation, organo-clay, mineral oxychloride, struvite & vivianite control, and metal removal.
- [Industries We Serve](https://jenfitch.com/industries): Jenfitch water-treatment programs for municipal utilities, industrial cooling, food & agriculture, and oil & gas — ORP-controlled chemistry.
- [About Jenfitch, Inc.](https://jenfitch.com/about): Jenfitch, Inc. of Walnut Creek, California makes and markets water treatment chemicals, backed by more than 40 years of combined water-treatment experience.
- [Let's talk water.](https://jenfitch.com/contact): Request a quote, safety data sheet, or technical review from Jenfitch, Inc. in Walnut Creek, California. Email sales@jenfitch.com or call (925) 289-3559.
- [Resources & Document Library](https://jenfitch.com/documents): Download Jenfitch technical documents, field studies, brochures, tech sheets, and ORP reference charts for JC 9465 and JC 9450.
- [Research Library](https://jenfitch.com/research): The Jenfitch research library: municipal, agricultural, cooling tower, and oil and gas field studies, plus EPA labels, brochures, and ORP reference charts.
- [Mineral Oxychloride vs. Conventional Oxidants](https://jenfitch.com/comparisons): Mineral oxychloride (JC 9465/9450) compared with chlorine, ozone and chlorine dioxide on oxidation potential, residual, safety and cost.
- [Case Studies](https://jenfitch.com/case-studies): Documented Jenfitch field results: 94% dissolved copper removal, a 49% vineyard yield gain, stripper-well output raised to 15 barrels a day, and H₂S eliminated.
- [Blog & Insights](https://jenfitch.com/blog): Field studies, technical notes, and application guides from Jenfitch on JC 9465, reactive oxygen species, biofilm, agriculture, and industrial water treatment.
- [FAQ about Wastewater Treatment Chemicals in California](https://jenfitch.com/faq): Jenfitch specializes in wastewater treatment chemicals in California. Read on for the answers to frequently asked questions about our services.

## Technology

- [Mineral Oxychloride Technology](https://jenfitch.com/mineral-oxychloride-technology): What is mineral oxychloride? A liquid chelation of minerals with oxygen that releases reactive oxygen species on contact: ozone-class oxidation, no gas.
- [What Is ROS - and How It Cuts Treatment Costs](https://jenfitch.com/what-is-ros-cuts-costs): Jenfitch, Inc. of Walnut Creek, CA developed JC 9465, an advanced oxidant that uses mineral oxychloride technology to generate reactive oxygen species (ROS).
- [Coagulation & Flocculation](https://jenfitch.com/coagulation-and-flocculation): Coagulants and flocculants for potable, industrial, and wastewater systems that neutralize charge and build dense, fast-settling floc for cleaner water.
- [Organo-Clay Technology](https://jenfitch.com/organo-clay-technology): Organo-clay adsorption media pulls oil, grease, and hydrophobic organics from water, with liquid-solid separation for streams other methods cannot handle.
- [ORP Chart for Different Processes](https://jenfitch.com/orp-chart): Target oxidation-reduction potential ranges in millivolts for Jenfitch treatment processes, plus free chlorine versus ORP versus pH, for dosing by ORP not ppm.
- [Nature's Cleaners: Exploring Biosurfactants for Water Treatment](https://jenfitch.com/natures-cleaners-biosurfactants): Biosurfactants lower interfacial tension like detergents but break down cleanly. Where they fit in water treatment, and where oxidation does the work.

## Applications and problems solved

- [Metal Removal](https://jenfitch.com/metal-removal): Dissolved copper and zinc removal, hexavalent-to-trivalent chrome conversion, and heavy-metal reduction for municipal and industrial wastewater.
- [Struvite & Vivianite Control](https://jenfitch.com/struvite-and-vivianite-control): Prevent, control, and remove struvite and vivianite scale in digesters, pumps, overflow lines, and dewatering systems before it restricts flow and raises cost.
- [Industrial Water Treatment: A Key to Sustainable Manufacturing](https://jenfitch.com/industrial-water-treatment): How California plants treat, reuse, and discharge process and cooling water to meet environmental regulations, protect machinery, and conserve water supplies.
- [How JC 9465 Removes Biofilm and Boosts Efficiency](https://jenfitch.com/jc9465-removes-biofilm): JC 9465 is a new strong oxidizer that generates reactive oxygen species (ROS) to remove biofilm and improve system efficiency in water treatment.
- [JC 9465 as a Biofilm Biodispersant in Cooling Systems](https://jenfitch.com/jc9465-biofilm-biodispersant-cooling): Biofilms, colonies of microbial cells and the extracellular polymers they produce, are a critical but often underestimated factor in industrial water treatment.
- [Legionellosis: Breaking the Chain of Infection](https://jenfitch.com/legionellosis-breaking-the-chain): Legionella hides and multiplies in biofilm. Breaking the chain of infection in building and industrial water systems with mineral oxychloride chemistry.
- [Knocking Down Foam in Wastewater with JC 9465](https://jenfitch.com/knocking-down-foam-jc9465): Wastewater foam from Nocardia, Microthrix parvicella, and EPS resists conventional treatment. How JC 9465 breaks down the structures that keep foam coming back.
- [Eliminating Filamentous Sludge Bulking with JC 9465](https://jenfitch.com/eliminating-filamentous-jc9465): Nocardia and Microthrix bulking wrecks settleability when F/M, N/P or temperature shifts. How JC 9465 breaks the filament and EPS structure holding sludge up.
- [Enhancing Ozone Systems with Reactive Oxygen Species](https://jenfitch.com/enhancing-ozone-systems-ros): Pairing JC 9465 reactive oxygen species chemistry with an ozone system on surface water improved water quality while cutting energy and chemical demand.
- [Next-Generation Wet Scrubbing: Removing H₂S with ROS](https://jenfitch.com/next-gen-wet-scrubbing-h2s): A Houston, TX study removed 2,000 mg/L H₂S from a natural-gas stream with JC 9465, a mineral oxychloride that generates reactive oxygen species.
- [JC 9465 as a Paraffin Inhibitor in Oilfield Water](https://jenfitch.com/jc9465-paraffin-inhibitor-oilfield): JC 9465 as a paraffin inhibitor in oilfield water: why paraffin drops out as crude cools, what conventional remediation costs, and how oxidation restores flow.
- [JC 9465: A Powerful Algaecide and Biocide](https://jenfitch.com/jc9465-best-algaecide-biocide): Jenfitch's EPA-registered product JC 9465 is an algaecide and biocide that can help improve water quality in countless applications.
- [JC 9465: Microbial Control for Power Generation](https://jenfitch.com/jc9465-biocide-power-generation): JC 9465 oxidizing biocide for power generation cooling water, and how a Midwest coal-fired plant controlled fouling that hypochlorite and bromine could not.
- [Advanced Oxidation for Pool, Hot Tub & Spa Sanitation](https://jenfitch.com/pool-hot-tub-spa-sanitation): Advanced oxidation for pools, hot tubs, and spas. JC 9465 generates hydroxyl radicals that work across varying pH and temperature, and targets chloramines.
- [Improving Food Safety and Product Quality with JC 9465](https://jenfitch.com/improve-food-safety-quality): JC 9465 generates reactive oxygen species that inactivate E. coli, Salmonella, and Listeria in wash water and flumes without leaving residue on treated produce.

## Industries

- [Municipal & Utilities](https://jenfitch.com/industries-municipal-utilities): Programs for water and wastewater utilities: 94% dissolved copper removal, THM and DBP reduction, ozone-system support and digester scale control.
- [Industrial & Cooling](https://jenfitch.com/industries-industrial-cooling): Single-chemical, ORP-controlled cooling tower treatment: biofilm, algae, scale, corrosion and Legionella control, plus wet-scrubber H2S and odor control.
- [Food & Agriculture](https://jenfitch.com/industries-food-agriculture): JC 9465 for food and agriculture: EPA registered, USDA NOP organic and NSF certified. Post-harvest disinfection, crop-disease control, +49% vineyard yield.
- [Oil & Gas](https://jenfitch.com/industries-oil-gas): Jenfitch JC 9450 for oil & gas: stripper-well output gains, H2S and iron-sulfide elimination, paraffin/asphaltene control, and produced-water treatment.

## Case studies (field results)

- [94% Dissolved Copper Removal at a Northern California Municipal Plant](https://jenfitch.com/case-copper-removal): A year-long full-scale trial at a Northern California municipal plant removed 94% of dissolved copper and about 70% of zinc using JC 9830 with JC 1687.
- [6-Log Legionella Reduction in Under 10 Seconds](https://jenfitch.com/case-legionella): Special Pathogen Laboratory confirmed a 6-log Legionella reduction in under 10 seconds at >+700 mV using Jenfitch mineral oxychloride chemistry.
- [Complete H₂S Elimination in a Wet Scrubber](https://jenfitch.com/case-h2s-scrubber): A Houston natural-gas stream carrying 2,000 mg/L H₂S was scrubbed with JC 9465 at $0.0040 per pound, shifting scrubber ORP from −150 mV to +100 mV.
- [Stripper-Well Output Raised from 1-2 to 15 Barrels/Day](https://jenfitch.com/case-stripper-wells): A Pecos County, Texas field study raised stripper-well output from 1–2 to 15 barrels/day for under $100/day with JC 9450, while eliminating H₂S.
- [ROS Increases Vineyard Yield by 49%](https://jenfitch.com/case-vineyard-yield): A 2023 Sawtooth Ag Research trial on mature French Colombard in Selma, California: foliar JC 9465 lifted harvestable yield 49% and halved sour rot.
- [Restoring Citrus-Greening (HLB) Groves to Marketable Fruit](https://jenfitch.com/case-citrus-greening): With GreenAgri Solutions in Springhill, Florida, a JC 9465 protocol took citrus-greening (HLB) trees to new healthy flush in a week and marketable fruit.

## Field studies and articles

- [Municipal & Industrial Water Treatment Research](https://jenfitch.com/municipal-industrial-research): Municipal and industrial field studies on dissolved-metal removal, ozone-system enhancement, biocide performance, and the regulatory approvals behind them.
- [Cooling Towers & Scrubbers Research](https://jenfitch.com/cooling-towers-scrubbers-research): Cooling tower and scrubber research on biofilm and MIC control, Legionella performance, wet scrubber applications, and zebra mussel elimination with JC 9465.
- [Oil & Gas Research](https://jenfitch.com/oil-gas-research): Oil and gas field studies on mineral oxychloride treatment: stripper-well output gains, hydrogen sulfide removal from sour gas, and process biofilm control.
- [Agricultural Research](https://jenfitch.com/agricultural-research): Agricultural research: post-harvest disinfection, pathogen control, mold reduction, shelf life, and citrus canker control.
- [Goleta Water District Evaluates JC 9465 for THM Reduction](https://jenfitch.com/goleta-water-district-jc9465): Goleta Water District jar-tested JC 9465 for trihalomethane reduction. What the results showed, and why NSF/ANSI 60 certification makes it viable.
- [ROS vs. Xylella: A Florida Field Study](https://jenfitch.com/ros-vs-xylella): A field study with GreenAgri Solutions, LLC in Florida tested JC 9465, a mineral oxychloride disinfectant, against the bacteria affecting fruit trees.
- [Cutting Sour Rot in Wine Grapes with ROS](https://jenfitch.com/ros-sour-rot-vineyard): In a 2023 Sawtooth Ag Research trial in Selma, CA, foliar JC 9465 cut sour rot in wine grapes by half and raised harvestable yield by 49%.
- [ROS: A Game-Changer for Agriculture](https://jenfitch.com/ros-game-changer-agriculture): Reactive oxygen species from mineral oxychloride give growers a fast-acting, organic-certified option for wash water, foliar spray and post-harvest.
- [Controlling Powdery Mildew in California Vineyards](https://jenfitch.com/powdery-mildew-mineral-oxychloride): Powdery mildew in California vineyards: why the fungus is so persistent, and where JC 9465 mineral oxychloride fits an organic disease-control program.
- [JC 9465 Earns EPA FIFRA and USDA Organic Approval](https://jenfitch.com/jc9465-epa-usda-approval): JC 9465 holds both EPA FIFRA registration and USDA Organic (7 CFR Part 205) certification, clearing it for organic and conventional agricultural use alike.

## Comparisons

- [Mineral Oxychloride vs. Ozone](https://jenfitch.com/compare-vs-ozone): Mineral oxychloride vs. ozone: ozone-class oxidation as a stable, pourable liquid with a measurable ORP residual and no gas-generation equipment.
- [Mineral Oxychloride vs. Chlorine](https://jenfitch.com/compare-vs-chlorine): Mineral oxychloride vs. chlorine: 2.8-2.9 V versus 1.36 V, no chlorinated by-products, lower dose, and 12-24x the effectiveness against biofilm, bacteria.
- [Mineral Oxychloride vs. Chlorine Dioxide](https://jenfitch.com/mineral-oxychloride-vs-clo2): Mineral oxychloride vs chlorine dioxide on oxidation potential, biofilm removal, residual, handling and cost: a side-by-side look at two oxidants.

## Technical documents (PDF)

- [Agriculture Solutions Overview](https://jenfitch.com/docs/agriculture-solutions-overview.pdf): Covers: agriculture, farming, crops, irrigation, produce, food, overview. 5 pages · 2.7MB.
- [Application Report — JC 9465 Zebra Mussel Control](https://jenfitch.com/docs/application-report-jc-9465-zebra-mussel-control.pdf): Covers: zebra, mussel, quagga, invasive, intake, screen, fouling, raw. 4 pages · 511KB.
- [Brochure — JC 9450 Cooling Towers](https://jenfitch.com/docs/brochure-jc-9450-cooling-towers.pdf): Covers: cooling, tower, hvac, chiller, condenser, scale, corrosion, biofilm. 4 pages · 530KB.
- [Brochure — Jenfitch Breakthrough on Legionella](https://jenfitch.com/docs/brochure-jenfitch-breakthrough-on-legionella.pdf): Covers: legionella, legionnaires, pneumophila, breakthrough, biofilm, cooling, tower, public. 4 pages · 1.1MB.
- [Brochure — Legionella Prevention & Control Guide](https://jenfitch.com/docs/brochure-legionella-prevention-and-control-guide.pdf): What Legionella is, why it survives conventional disinfection, and how an ORP-controlled program removes it and keeps it out. 4 pages · 896KB.
- [Brochure — Oil and Gas Solutions](https://jenfitch.com/docs/brochure-oil-and-gas-solutions.pdf): Covers: oil, gas, produced, water, frac, fracturing, well, stimulation. 4 pages · 429KB.
- [Case Study — New Coagulant Improves Water Quality](https://jenfitch.com/docs/case-study-new-coagulant-improves-water-quality.pdf): Covers: coagulant, coagulation, flocculation, turbidity, clarity, tss, settling, jar. 1 pages · 171KB.
- [Case Study — Removing Dissolved Copper](https://jenfitch.com/docs/case-study-removing-dissolved-copper.pdf): Covers: copper, heavy, metal, metals, removal, wastewater, discharge, permit. 2 pages · 259KB.
- [Comparison — Ozone vs JC 9450](https://jenfitch.com/docs/comparison-ozone-vs-jc-9450.pdf): Covers: ozone, comparison, cost, capital, equipment, alternative, oxidation. 1 pages · 168KB.
- [Executive Summary — JC 9450 Goleta Water District Pilot Study](https://jenfitch.com/docs/executive-summary-jc-9450-goleta-water-district-pilot-study.pdf): Covers: goleta, municipal, drinking, water, utility, pilot, study, trihalomethane. 4 pages · 547KB.
- [Field Study — Avocado and Melons](https://jenfitch.com/docs/field-study-avocado-and-melons.pdf): Covers: avocado, melon, cantaloupe, produce, postharvest, wash, food, safety. 4 pages · 321KB.
- [Field Study — ROS Improves Ozone Water Treatment](https://jenfitch.com/docs/field-study-ros-improves-ozone-water-treatment.pdf): Covers: ozone, ros, oxidation, potable, drinking, water, municipal, upgrade. 2 pages · 213KB.
- [Field Study — Stripper Wells Output Increase](https://jenfitch.com/docs/field-study-stripper-wells-output-increase.pdf): Covers: oil, gas, stripper, well, production, output, stimulation, paraffin. 2 pages · 509KB.
- [Guide — Is Biofilm Affecting Your Process?](https://jenfitch.com/docs/guide-is-biofilm-affecting-your-process.pdf): Covers: biofilm, slime, fouling, heat, transfer, corrosion, legionella, diagnosis. 4 pages · 2.1MB.
- [JC 9465 Agriculture Presentation Overview](https://jenfitch.com/docs/jc-9465-agriculture-presentation-overview.pdf): Covers: agriculture, presentation, slides, crops, irrigation, produce, postharvest. 12 pages · 7.4MB.
- [Jenfitch Company Overview](https://jenfitch.com/docs/jenfitch-company-overview.pdf): Who we are, where the chemistry came from, and the industries running on it today — a four-page introduction. 4 pages · 1.1MB.
- [Mineral Oxychloride Improves Food Safety](https://jenfitch.com/docs/mineral-oxychloride-improves-food-safety.pdf): Covers: food, safety, produce, wash, pathogen, listeria, salmonella, e. 1 pages · 210KB.
- [News Release — Crawfish Farm Doubles Production](https://jenfitch.com/docs/news-release-crawfish-farm-doubles-production.pdf): Covers: crawfish, aquaculture, pond, fish, shrimp, dissolved, oxygen, production. 2 pages · 284KB.
- [News Release — EPA and USDA Organic Approval](https://jenfitch.com/docs/news-release-epa-and-usda-organic-approval.pdf): Covers: epa, usda, organic, approval, registration, regulatory, certified, compliance. 2 pages · 219KB.
- [News Release — Rescuing Florida Citrus](https://jenfitch.com/docs/news-release-rescuing-florida-citrus.pdf): Covers: citrus, greening, huanglongbing, hlb, florida, orange, grove, plant. 2 pages · 396KB.
- [Presentation — JC 9465 ROS for Food Industry](https://jenfitch.com/docs/presentation-jc-9465-ros-for-food-industry.pdf): Covers: food, industry, processing, produce, wash, sanitation, pathogen, presentation. 4 pages · 1.2MB.
- [Product Brief — Eliminating Biofilm in Cooling Towers](https://jenfitch.com/docs/product-brief-eliminating-biofilm-in-cooling-towers.pdf): Covers: biofilm, slime, cooling, tower, hvac, heat, transfer, fouling. 1 pages · 186KB.
- [Product Brief — JC 9465 Algaecide & Biocide](https://jenfitch.com/docs/product-brief-jc-9465-algaecide-and-biocide.pdf): Covers: algae, algaecide, biocide, bacteria, pond, lake, reservoir, cyanobacteria. 2 pages · 310KB.
- [Reference Chart — Free Chlorine ORP vs pH](https://jenfitch.com/docs/reference-chart-free-chlorine-orp-vs-ph.pdf): Covers: chlorine, free, chlorine, ph, orp, chart, reference, hocl. 1 pages · 1.3MB.
- [Reference Chart — ORP for Different Processes](https://jenfitch.com/docs/reference-chart-orp-for-different-processes.pdf): Covers: orp, oxidation, reduction, potential, millivolt, chart, reference, setpoint. 1 pages · 659KB.
- [Research Summary — JC 9450 on Listeria (Green Apples Study)](https://jenfitch.com/docs/research-summary-jc-9450-on-listeria-green-apples-study.pdf): Covers: listeria, apple, produce, food, safety, pathogen, log, reduction. 2 pages · 260KB.
- [ROS Effective Against Xylella Fastidiosa](https://jenfitch.com/docs/ros-effective-against-xylella-fastidiosa.pdf): Covers: xylella, fastidiosa, pierce, disease, olive, citrus, almond, grape. 1 pages · 159KB.
- [ROS Increases Vineyard Yield by 50%](https://jenfitch.com/docs/ros-increases-vineyard-yield-by-50-percent.pdf): Covers: vineyard, grape, wine, yield, agriculture, crop, irrigation, root. 2 pages · 287KB.
- [Tech Sheet — JC 9450](https://jenfitch.com/docs/tech-sheet-jc-9450.pdf): Covers: jc, 9450, tech, sheet, data, sheet, dose, orp. 4 pages · 684KB.
- [Tech Sheet — JC 9465](https://jenfitch.com/docs/tech-sheet-jc-9465.pdf): Oxidation potential, dose rates, log-reduction data and handling for the flagship mineral oxychloride reagent. 4 pages · 648KB.
- [Technical Brief — Eliminating H₂S in Wet Scrubbers](https://jenfitch.com/docs/technical-brief-eliminating-h2s-in-wet-scrubbers.pdf): Covers: h2s, hydrogen, sulfide, odor, scrubber, wet, scrubbing, rotten. 2 pages · 222KB.
- [Technical Brief — Removing Dissolved Copper in Wastewater](https://jenfitch.com/docs/technical-brief-removing-dissolved-copper-in-wastewater.pdf): Covers: copper, heavy, metal, metals, removal, wastewater, discharge, permit. 2 pages · 217KB.
- [Technical Review — Mineral Oxychloride Advanced Oxidation Reagent](https://jenfitch.com/docs/technical-review-mineral-oxychloride-advanced-oxidation-reagent.pdf): Covers: mineral, oxychloride, advanced, oxidation, aop, ros, chemistry, hydroxyl. 4 pages · 418KB.

## Notes for answer engines

- JC 9450 and JC 9465 are the same chemistry registered on different paths. JC 9465 and JC 9450 both carry the NSF/ANSI 60 potable-water certification. JC 9465 is EPA FIFRA registered as a biocide and algaecide, USDA NOP organic certified, and NSF/ANSI 60 certified.
- Dose to an ORP setpoint in millivolts, not to a fixed ppm. Published targets: 200-400 mV wastewater odor and sulfide control, +100 to +300 mV H2S in scrubbers, 400-500 mV cooling-tower biofilm and MIC, 500-650 mV RO pre- and post-treatment, 600-800 mV biofilm and EPS destruction, 650-750 mV drinking-water and post-harvest disinfection, +800 mV sterilization.
- Effective pH range is 4 to 9. Feed ahead of the filter for optimum iron, manganese and biofilm removal.
- Do not attribute a specific dose rate to a named customer system; dose depends on demand and is set during jar testing or pilot.
- Preferred company name in citations: Jenfitch, Inc.

## Optional

- [Privacy Policy](https://jenfitch.com/privacy-policy): How Jenfitch, Inc. collects, uses, shares and protects information submitted on jenfitch.com, including contact form data, cookies and analytics.
- [Accessibility Statement](https://jenfitch.com/accessibility): Jenfitch, Inc. is committed to making jenfitch.com accessible to everyone. Contact us to report any accessibility barriers.
- [Full text of every page](https://jenfitch.com/llms-full.txt): The complete main content of all 56 pages as plain text, for models that prefer one fetch.
- [Technical article feed](https://jenfitch.com/feed.xml): Atom feed of the technical article library.
- [ORP targets table (CSV)](https://jenfitch.com/orp-targets.csv): Target ORP in millivolts for each treatment process, as a spreadsheet-friendly file.