JPD Water Consulting
Aerial view of a modern water treatment facility at dawn

Drinking Water · Wastewater · Advanced Treatment

Clarity, compliance, and control for every water system.

Practical, field-tested guidance for water treatment, water quality, wastewater, and advanced treatment, with a commitment to safe, affordable drinking water for every community.

45+
Years in water industry & education
M.S.
Civil & Environmental Engineering, USC
T5
Certified water treatment operator
Public + Private
Agencies and facility clients

What I Do

Four disciplines. One standard: water you can trust.

From the first stage of treatment to the most advanced purification technologies, every project draws on hands-on operations experience and current regulatory knowledge.

01

Water Treatment

Coagulation, flocculation, sedimentation, filtration, and disinfection: the fundamentals of safe drinking water. I help agencies and operators troubleshoot process upsets, optimize chemical dosing, and keep clearwell and distribution operations within compliance.

Coagulation & Filtration Chemical Dosing Disinfection Clearwell Operations
Cross-section illustration of layered water filtration media
02

Water Quality

Water quality is where chemistry meets public health. I provide monitoring program design, sampling protocol review, and root-cause analysis for water quality complaints and exceedances, so problems are traced to their source and corrected for good.

Monitoring Programs Regulatory Compliance Sampling & Analysis Public Health
Water sample being examined in a laboratory setting
03

Wastewater Treatment

From activated sludge and clarification to nutrient removal and biosolids handling, I support wastewater operations with process troubleshooting and capacity or permit-compliance reviews.

Activated Sludge Clarification Nutrient Removal Biosolids
Aerial view of circular wastewater treatment clarifier tanks
04
Advanced water treatment process flow diagramTreated wastewater flows through microfiltration or ultrafiltration, reverse osmosis, UV with advanced oxidation, and post-treatment stabilization to produce purified water for potable reuse. FULL ADVANCED TREATMENT PROCESS FLOWSOURCETreatedWastewaterSecondary or tertiaryeffluentSTEP 1Microfiltration /UltrafiltrationRemoves suspended solids,bacteria, and protozoaSTEP 2ReverseOsmosisRemoves salts, viruses,PFAS, and most organicsSTEP 3UV + AdvancedOxidationDisinfects and destroystrace organics (NDMA,1,4-dioxane)STEP 4Post-TreatmentStabilizationDecarbonation and limefor corrosion controlPURIFIED WATERPotableReuseGroundwater recharge,reservoir augmentation,or direct potable reuseChloramineAntiscalant + acidHydrogen peroxideLimeBackwash to headworksRO concentrate to brine disposalChemical feeds shown above each process. Side streams shown below.Advanced water treatment process flow diagram FULL ADVANCED TREATMENTSOURCETreated WastewaterSecondary or tertiary effluentIn: ChloramineSTEP 1Microfiltration / UltrafiltrationRemoves solids, bacteria, protozoaOut: Backwash to headworksIn: Antiscalant + acidSTEP 2Reverse OsmosisRemoves salts, viruses, PFAS, organicsOut: RO concentrate to brine disposalIn: Hydrogen peroxideSTEP 3UV + Advanced OxidationDisinfects and destroys trace organicsIn: LimeSTEP 4Post-Treatment StabilizationDecarbonation and lime stabilizationPURIFIED WATERPotable ReuseRecharge, reservoir, or direct reuse

Advanced Water Treatment

As water systems face emerging contaminants, drought, and stricter discharge limits, advanced treatment is becoming essential. I help agencies evaluate options, plan implementation, and operate these next-generation processes with confidence.

Membrane Filtration Reverse Osmosis UV / AOP Potable Reuse

Equity & Environmental Justice

Safe water is a right, not a privilege.

Too many underrepresented, rural, and low-income communities still live with aging infrastructure, contaminated sources, and water they can't trust. Environmental justice is at the center of how I work: making sure the communities most burdened by pollution and underinvestment get the same technical rigor and attention as any large utility.

  1. 01

    Small & disadvantaged community systems

    Practical technical assistance for small water systems and communities facing compliance challenges, contamination, or limited operating resources.

  2. 02

    Affordable, right-sized solutions

    Treatment options matched to a community's budget, staffing, and long-term capacity, not just the most expensive technology on the market.

  3. 03

    Community education & engagement

    Plain-language explanations of water quality results, risks, and treatment choices so residents and local leaders can make informed decisions.

  4. 04

    Building local workforce capacity

    Operator training and mentoring that helps communities develop and keep qualified water professionals from within.

How I Work

A straightforward path from problem to solution.

01

Assess

On-site or remote review of current processes, data, and compliance status.

02

Diagnose

Identify the root cause of process, quality, or regulatory issues.

03

Recommend

Practical recommendations that fit how your system actually operates.

04

Support & Train

Hands-on operator training and ongoing technical support.

Mountain reservoir with a dam, representing California's water supply infrastructure

About JPD Water Consulting

Four and a half decades in water, still hands-on.

JPD Water Consulting is led by Jeffry Dennis, whose career spans water industry operations and education.

Jeffry is a certified T5 Water Treatment Operator, California's highest treatment operator grade, reflecting deep technical command of complex treatment processes.

That foundation is paired with decades spent teaching the next generation of water professionals, an approach that shows up as clear, practical explanations rather than jargon-heavy reports.

He brings a strong environmental justice perspective to his work, with particular attention to underrepresented communities.

Education M.S., Civil & Environmental Engineering, University of Southern California
Certification T5 Water Treatment Operator (California)
Experience 45+ years in water industry operations & teaching
Focus Areas Water treatment, water quality, wastewater, advanced treatment, and environmental justice

Who I Work With

Trusted by cities, public agencies, and private operators alike.

Every water system is different. Whether you answer to a board of directors or a regulator, the goal is the same: safe, compliant, reliable water for everyone who depends on it.

Let's talk about your water system.

Whether you're troubleshooting a process issue, preparing for a regulatory review, or evaluating advanced treatment options, I'm glad to help. Reach out and tell me what you're working on.