CreekWell Plumbing & Water Treatment LLC · 928-228-5770 · creekwellplumbing.com
Arizona health agencies have found Yavapai County private-well samples over the EPA’s 10 ppb arsenic limit — all six from Cornville wells, and six of seven in Paulden. CreekWell sizes arsenic removal to your own water — a whole-house system, or reverse osmosis under the kitchen sink — and a lab test of the treated water shows you the result.
Arsenic in Northern Arizona groundwater is geological. It leaches from the volcanic and granitic bedrock that underlies most of Yavapai County, and it shows up in measurable concentrations in a large share of private wells. The numbers are not small.
Peer-reviewed sampling published in the Journal of Contemporary Water Research & Education, and two health consultations by the Arizona Department of Health Services (ADHS), found:
Arsenic is colorless, odorless, and tasteless. There is no DIY way to detect it — certified lab testing is the only path. Long-term ingestion at levels above 10 ppb is associated with bladder, lung, and skin cancers, cardiovascular disease, and developmental effects in children. The EPA and the U.S. Department of Health and Human Services list inorganic arsenic as a known human carcinogen, and the World Health Organization’s cancer agency (IARC) classifies it as carcinogenic to humans.
Sources: M.C. Jones et al., “Arsenic Concentrations in Ground and Surface Waters across Arizona Including Native Lands”, Journal of Contemporary Water Research & Education 169(1):44–60, 2020 · ADHS, Arsenic in Private Drinking Water Wells, Cornville (2004) · ADHS for ATSDR, Evaluation of Metals in Private Drinking Water Wells, Paulden (2006) · ATSDR ToxFAQs: arsenic · WHO arsenic fact sheet. The longer local story is in our guide, Arsenic in Yavapai County well water.
There are three ways to handle arsenic in a home: a whole-house system, reverse osmosis at the kitchen sink, or both. Which one fits depends on what your water test shows. The under-sink systems can be booked now if the water is inside their limits (arsenic V up to 300 ppb, and on a well iron up to 0.3 ppm and manganese up to 0.1 ppm) and the job needs no permit (if a granite, quartz or stainless counter needs a new faucet hole, the Ocelot goes over $1,000 and waits); the whole-house system waits until CreekWell’s contractor licenses are issued. New Hampshire’s environmental agency says whole-house treatment is only needed if someone, such as a young child, is likely to drink from a tap other than the treated one. Over 100 ppb of arsenic, it adds, even small amounts swallowed regularly, in the bath or from a bathroom tap, can significantly increase the risk of health effects.
The Jaguar Package: a tank of iron-based media that grabs arsenic out of the water before it reaches any tap. Best for homes that want arsenic brought down at every shower, sink and laundry tap — AdEdge’s goal is under the EPA limit of 10 ppb, not zero.
About the system$4,750Reference price · installed, flatThe Kitten (5-stage) or the Ocelot (6-stage, alkaline) at the kitchen sink. The most cost-effective answer if your concern is the water you drink and cook with; it works best on arsenic V.
About the RO systems$829Installed · $999 for the 6-stageTwo barriers for high-arsenic wells. The whole-house system catches the bulk; an under-sink RO is a second barrier for drinking water. The price is simply the sum of the two listed prices, or $5,749 with the Ocelot in place of the Kitten.
$5,579With the Kitten · reference priceArsenic comes in two forms, called arsenic III and arsenic V, and that decides what works. Most treatments catch arsenic V easily. Arsenic III has to be chemically converted first — a step called pre-oxidation — before anion exchange or reverse osmosis can take it out. The Bayoxide E33 media in the Jaguar Package has capacity for both forms, though AdEdge’s own literature notes it holds more arsenic V than arsenic III and recommends pre-oxidation where arsenic III dominates.
The $185 lab panel reports total arsenic, not the split between the two forms. So if the rest of your water chemistry points toward arsenic III, you hear about it, and what it means for the choice of system, before anything is ordered. A lab test of the treated water shows the number the system actually reaches, and CreekWell reads those results with you free.
A packaged residential arsenic adsorption system from AdEdge Water Technologies — the AdVantEdge Medallion Series POE — model POE-7-1354, or the larger POE-10-1465, chosen by your home’s flow — running Bayoxide® E33 media. AdEdge says no other technology matches it for simplicity: no salt, no chemicals, no additives — just periodic automatic backwashing.
AdEdge systems are prescribed from a site water profile — arsenic, pH, iron, manganese, hardness, sulfate, phosphate and sulfide at a minimum — not guessed. The panel covers most of them, and Neil checks your report against AdEdge’s list before anything is ordered. Afterward, treated-water tests (every 3 months, AdEdge; at least yearly, the University of Arizona) show it is working.
Order the test kit$185You order it from the labAdEdge Medallion system (POE-7-1354 or POE-10-1465), Bayoxide E33 media, pre-filter and parts, installation with loop plumbing, commissioning and a startup sample.
Full spec sheet$4,750Reference price · installed, flatNot bookable yet. This work comes to $1,000 or more, so it waits for CreekWell’s contractor licenses.
Until its Arizona contractor licenses are issued, CreekWell takes only jobs that come to under $1,000 in all and need no permit and no gas. The price is published so you can plan and compare; it is not an offer, a quote or a bid. What the licenses change
You do not need these tables to decide anything. They are here so you, or anyone you ask for a second opinion, can check the system against the manufacturer’s own sheet. The short version: one tank, 13 inches wide and 54 inches tall (POE-7, 6–8 gallons a minute) or 14 by 65 inches (POE-10, 8–10 gallons a minute), sized to your home’s peak flow, that works best on water inside the limits in the third table — which is exactly what the $185 test measures.
| Item | Manufacturer figure |
|---|---|
| Tank | 13″ W × 54″ H · gravel/stone underbed · 160 lbs |
| Media | Bayoxide® E33 iron-based arsenic adsorption media (AdEdge AD33), 2.75 cubic feet (4 in the POE-10-1465) |
| Flow | 6–8 GPM normal service · 8 GPM peak — sized for full-house supply |
| Backwash | Automatic, by gallons treated or every 28 days · 14 minutes plus a 2-minute rinse at 7.5 GPM, about 120 gallons (AdEdge’s manual; our arithmetic) |
| Connections | 1″ MPT PVC inlet/outlet · ¾″ drain |
| Control valve | LCD readout · flow totalizer for media tracking · built-in sample ports · built-in flow controls |
| Operating range | 33–100°F (brochure); the installation manual gives 40–110°F and 30–125 psi |
| Larger model | POE-10-1465: 14″ W × 65″ H · 4 cubic feet of E33 · 8–10 GPM, 10 peak · 10 GPM backwash · 230 lbs |
| Warranty | AdEdge publishes no homeowner warranty for the Medallion; any written warranty that ships with it is shown to you before you sign |
| Item | Manufacturer figure |
|---|---|
| Arsenic range | 5–100 ppb influent recommended for best performance (AdEdge’s brochure lists 5–500 ppb, higher with AdEdge consulted) · treatment goal under 10 ppb total arsenic, the current EPA MCL |
| Types reduced | Arsenic V and arsenic III — greater capacity for arsenic V; AdEdge recommends pre-oxidation where arsenic III dominates |
| Removal efficiency | 90–99% typical |
| Media life | Depends on water quality and use — tracked by the flow totalizer and verified by treated-water tests (every 3 months, AdEdge); the exchange is priced flat when it is due |
| Spent media | Non-hazardous waste when applied as directed (passes EPA TCLP, AdEdge) — disposal under local rules |
Outside these limits the media works less well or needs help ahead of it. Most of these are on the $185 panel; some, such as sulfide, need a separate test, and Neil checks your report against this list before anything is ordered.
| Item | Manufacturer figure |
|---|---|
| pH | 5.5–8.5 |
| Iron / manganese | under 0.5 mg/L / under 0.05 mg/L — higher levels are treated ahead of the Jaguar: a softener for clear-water iron up to about 2 mg/L (the supplier); an iron filter, the Panther, above that or for rusty iron |
| Silica / sulfides | under 30 mg/L / under 0.1 mg/L |
| Phosphate / sulfate / fluoride | under 0.5 mg/L / under 100 mg/L / under 1.0 mg/L |
| Hardness | under 300 mg/L, about 17.5 grains (AdEdge); above that, a softener goes before the AdEdge unit, and below it a softener is optional |
| Sediment | A 30-micron sediment pre-filter is included in every install (AdEdge’s installation list) |
In plain terms: exchange resin and whole-house RO both need arsenic III converted first, both need salt or membrane cleaning, and RO sends a quarter to three-quarters of the water down the drain. The Medallion needs none of that, in AdEdge’s comparison below. Our arithmetic from AdEdge’s own manual puts its backwash water at about 2–4% of what a 2–4 person house uses, not the chart’s under 1%.
| Feature | Anion exchange | Whole-House RO | The Jaguar Package (Medallion POE) |
|---|---|---|---|
| Arsenic treated | As V only | As V only | As V and As III |
| Pre-oxidation needed | Yes | Yes | Not usually — only for heavily arsenic III water |
| Chemical use | Salt | Membrane cleaning | None |
| Water wasted | 5% | 25–75% | under 1% |
| Hazardous waste | Yes | Concentrated reject | None |
| Off-taste potential | Yes | No | No |
| Maintenance | High | High | Low |
| Arsenic “dumping” | Possible | N/A | No |
After the install: treated-water tests (every 3 months, AdEdge; at least yearly, the University of Arizona) confirm the number, the totalizer tracks gallons toward the media change, and the media exchange is priced flat when it is due. Pair it with an under-sink RO system ($829) for a second barrier on drinking water.
Figures from AdEdge Water Technologies’ AdVantEdge Medallion Series POE data sheet and product brochure. Bayoxide® is a LANXESS trademark.
Pricing depends entirely on which technology fits your water test and your home.
| Option | What it covers | Installed |
|---|---|---|
| Under-sink reverse osmosis | Drinking and cooking water at the kitchen sink — the Kitten (5-stage) or the Ocelot (6-stage alkaline) | $829 or $999 |
| Whole-house arsenic adsorption | Every tap in the house — The Jaguar Package | $4,750 |
| Whole-house + under-sink RO | The most protection: both of the above, priced as the sum of the two listed prices | $5,579 or $5,749 |
| Under-sink RO on a well with iron | The RO needs iron up to 0.3 ppm (Charger), so a softener goes ahead of it for clear-water iron up to about 2 ppm — the Bobcat and the Kitten. The softener waits for the licenses, so the RO waits with it; heavier or rusty iron needs the Panther instead | $2,628 (reference price) |
| Certified lab test | SimpleLab’s Drinking Water Test: Level 1 + Bacteria, 53 parameters, ordered by you from the lab | $185 |
| Hydrogen sulfide test, for the Jaguar | SimpleLab’s Hydrogen Sulfide test. The panel above does not measure sulfide, and AdEdge’s limit is 0.1 ppm. With the panel, $292 (our arithmetic) | $107 |
Every system includes the two-year workmanship warranty. The Jaguar also includes a startup sample and one lab retest after installation; AdEdge publishes no homeowner warranty for it. The under-sink systems carry Charger’s two-year limited warranty, and a lab test of their water is optional, ordered from SimpleLab at its price. On the whole-house system, the media exchange is priced at current media pricing when the totalizer and the treated-water tests say it is due. AdEdge’s example is 2–4 years for a 2-cubic-foot system at 10–50 ppb, New Hampshire’s environmental agency says 1–3 years, and it puts replacement media at about $1,000 per cubic foot. The Jaguar’s full spec sheet has every figure and the upkeep schedule.
Same flat rate across the whole service area. This price applies everywhere in Yavapai County — Prescott, Prescott Valley, Chino Valley, Dewey-Humboldt, Mayer, Paulden, Sedona, Cottonwood, the Verde Valley and the outer county — it is not a Prescott-only rate.
CreekWell covers arsenic removal for private well owners across all of Yavapai County: Prescott, Prescott Valley, Chino Valley, Williamson Valley, Dewey-Humboldt, Mayer, Paulden, Sedona, Cottonwood, Camp Verde, Cornville, Rimrock, Lake Montezuma — every community in Yavapai County. No trip fee anywhere in the county, dirt road or not.
Related: complete well water treatment, under-sink reverse osmosis, certified water testing, and the guide Arsenic in Yavapai County well water — how common it is, and what the numbers mean.
Yes, for repairs and emergencies under $1,000.
Call or text 928-228-5770, Monday to Saturday, 7am to 7pm; a priority call gets a same-day visit when Neil is free. Whole-house systems wait for the contractor licenses (what the licenses change).
Only a certified lab test can tell you — arsenic is colorless, odorless, and tasteless.
A peer-reviewed compilation of 33,099 Arizona water samples (Jones et al., 2020) found 43.6% of Yavapai County samples above the EPA’s 10 ppb arsenic limit, and Arizona Department of Health Services work found all six Cornville well samples it reviewed above it, from 15 to 952 µg/L. The $185 Premium Water Test — SimpleLab’s Drinking Water Test: Level 1 + Bacteria, ordered directly from the lab — detects arsenic at low ppb levels alongside 52 other parameters. CreekWell reads the report with you free.
10 parts per billion (10 µg/L) — the EPA’s Maximum Contaminant Level (MCL) for public drinking water.
The World Health Organization uses the same 10 µg/L figure. The EPA limit binds public water systems, not private wells, and many private wells in Yavapai County exceed it; in Cornville one sample measured 952 µg/L, 95× the legal limit. Long-term exposure above 10 ppb is associated with bladder, lung, and skin cancers.
If your test came back above 10 ppb arsenic, do not drink it, cook with it, or use it for ice or coffee until treatment is in place.
Bottled or RO-filtered water is the right interim step for drinking, cooking and pets. What the Arizona Department of Health Services (ADHS) and the University of Arizona say about the rest, by arsenic level:
| Arsenic level | Drinking and cooking | Brushing teeth | Bathing, dishes and laundry | Watering plants |
|---|---|---|---|---|
| 10 ppb or less | Yes (the EPA limit) | Yes | Yes | Yes |
| Over 10, up to 100 ppb | No | Yes | Yes | Yes, vegetables included (University of Arizona) |
| Over 100, up to 200 ppb | No | Yes | Yes | The guides give no figure; ask first |
| Over 200, up to 500 ppb | No | No (ADHS) | Yes (ADHS; University of Arizona) | No (ADHS; University of Arizona) |
| Over 500 ppb | No | No | Ask first: ADHS’s 2024 guide says yes even over 200 ppb; its older fact sheet and the University of Arizona draw the line at 500 | No |
An under-sink RO ($829) can go in during a single morning visit and covers your drinking and cooking water while a whole-house system is sized, if the arsenic is 300 ppb or less (Charger’s rating for it), the water is inside its other limits and the job needs no permit. On a well, iron over 0.3 ppm or manganese over 0.1 ppm has to be treated ahead of an RO (Charger); that treatment is whole-house equipment, which waits for the contractor licenses, so the RO waits with it. Until then, use bottled water for drinking and cooking.
$4,750 flat, installed — The Jaguar Package, the same price anywhere in Yavapai County.
That is an AdEdge system using iron-based Bayoxide E33 arsenic-selective adsorption media. Point-of-use reverse osmosis (drinking water only) is $829 for the 5-stage Kitten or $999 for the 6-stage Ocelot. The combined approach — whole-house adsorption plus under-sink RO — is $5,579 or $5,749, the sum of the two listed prices. The whole-house prices are reference prices until CreekWell’s contractor licenses are issued. All include the two-year workmanship warranty; the Jaguar also includes a startup sample and one lab retest after installation.
Yes — a properly installed reverse osmosis system removes most arsenic V at the membrane.
RO is on the EPA’s list of Best Available Technologies for arsenic, written for public water systems. The University of Arizona’s Cooperative Extension puts it at up to 95% removal and warns that results vary with the system, its upkeep and the starting level, which is why the treated water gets retested. RO membranes do not reject arsenic III as well, and Charger’s manual says its unit does not convert one form to the other; if your water chemistry points to arsenic III, you hear that before anything is ordered.
Yes, though it works best on arsenic V — and the form changes which technology actually works.
Arsenic in well water comes in two forms: arsenic V, which most technologies can grab, and arsenic III, which anion exchange and reverse osmosis can only treat after a chemical pre-oxidation step. The Jaguar Package’s Bayoxide E33 adsorption media has capacity for both forms, with 90–99% typical removal (AdEdge). AdEdge notes the media is more effective on arsenic V and recommends pre-oxidation where arsenic III dominates. The University of Arizona says arsenic III is normally not a concern for Arizona well owners, since most aquifers contain arsenic V (AZ1650). The $185 panel reports total arsenic rather than the two forms separately, so the rest of your chemistry is read with it, and anything that points to arsenic III is raised before the system is sized — prescribed, not guessed.
It depends on your water and use.
AdEdge’s example is 2–4 years for a 2-cubic-foot system at 10–50 ppb; New Hampshire’s environmental agency says 1–3 years.
In an EPA field test the media lasted 62% of the vendor’s estimate, so the tests decide, not the calendar. You never guess at it: the control valve counts every gallon treated, and treated-water retests (AdEdge’s manual says every three months; the University of Arizona says at least once a year) confirm the media is still catching arsenic, so the exchange is scheduled from results and priced at current media pricing when it is actually due. You order that retest from the lab, and CreekWell reads the results with you free.
No, in AdEdge’s testing.
AdEdge says spent Bayoxide E33 passes the EPA’s TCLP leaching test and is non-hazardous waste when applied as directed.
AdEdge’s manual says to follow local, state and federal rules for disposal, and names a sanitary landfill; the arsenic stays chemically bound to the media instead of being flushed anywhere. Media life depends on your water chemistry and usage; the control valve’s flow totalizer counts every gallon treated, and treated-water tests (every 3 months, AdEdge) show when arsenic starts coming through, which is when the media is replaced.
Monday to Saturday, 7am to 7pm. Neil answers his own phone and calls requests back in the order they came in.
