How to Protect Your Property During Heavy Rain in Southern Utah

Southern Utah is built for dry weather — until it isn't. Long stretches without meaningful rainfall can make it easy to overlook where water actually travels across a property, how well drains and culverts are functioning, or whether runoff is being directed toward the house instead of away from it.

When several rounds of rain arrive in a short period, normally dry washes, drainage channels, streets and low areas can begin carrying significant amounts of water quickly. A property does not have to sit directly beside a river or inside a mapped high-risk flood zone to experience problems from heavy rain. Poor drainage, grading, clogged roof drains, blocked culverts and runoff from neighboring properties can all contribute to localized flooding. Utah emergency-preparedness officials specifically warn that flooding can occur outside designated flood zones. [1][2]

October 2026 Weather Update: Flood Watch in Effect for Southern Utah

As of Saturday, October 10, the National Weather Service has placed St. George, Lower Washington County, Hurricane, Ivins, Zion National Park and much of Southern Utah under a Flood Watch through Monday afternoon. The watch warns that excessive rainfall could cause flash flooding in dry washes, creeks, streams, low-lying areas and other flood-prone locations. [3]

The National Weather Service currently rates flash-flood potential at Snow Canyon/Red Cliffs as Probable Saturday, Expected Sunday and Probable Monday. Zion National Park carries the same rating. “Expected” means many slot canyons, dry washes and small streams may experience flash flooding. [4]

Current forecasts call for widespread rain beginning this weekend as moisture associated with Tropical Storm Rachel interacts with a larger storm system. Rainfall totals will vary significantly depending on storm track and terrain, but the National Weather Service expects widespread heavy rainfall with locally higher amounts, and current forecasts indicate Sunday will be one of the highest-risk periods for flooding in southwest Utah. [4][5]

For current conditions, warnings and road information, follow the National Weather Service and Washington County Emergency Management rather than relying on an older forecast or social-media screenshot. Washington County residents can also text WCFLOOD to 888777 for county flood information. [2]

The preparation below applies to this storm, but it is intentionally broader. These are the same things worth checking before any period of significant rain in St. George, Washington, Santa Clara, Ivins, Hurricane and the surrounding Southern Utah communities.

Start With the Most Important Question: Where Will the Water Go?

Before buying anything or making major changes, walk the property and look at it as a watershed.

Water falling on the roof has to go somewhere. So does water hitting driveways, patios, landscaping, retaining walls, neighboring lots and streets. During light rain, small drainage problems may be nearly invisible. During sustained or intense rainfall, the same low spots can collect water faster than it can infiltrate or drain away.

Look for areas where the ground slopes toward the structure, low points beside foundations, retaining walls that interrupt natural drainage, landscape beds that have gradually been built higher than the surrounding grade, and places where runoff from a driveway or neighboring property enters your lot.

If you already know where water collects during a normal storm, pay particular attention to that area before a larger event.

Clear Gutters, Roof Drains and Downspouts Before the Rain Starts

Roof drainage is one of the easiest systems to inspect before a storm.

Leaves, roofing debris, sediment and other material can restrict gutters and roof drains. When those systems cannot move water quickly enough, water may overflow in places it was never intended to go.

Check accessible gutters, scuppers and roof drains for obvious blockage. Make sure downspouts are connected and that discharge points have not been buried by landscaping or obstructed.

The goal is not simply to get water off the roof. It is to move that water to a location where it can continue away from the structure safely.

A downspout dumping directly beside the foundation can solve the roof-drainage problem while creating a ground-drainage problem.

Check Area Drains, Catch Basins and Trench Drains

Southern Utah properties commonly use area drains, catch basins and trench drains around patios, pools, driveways, retaining walls and low sections of landscaping.

Remove leaves, landscape rock, mud and other visible debris from grates before heavy rain. If a drain is already holding water on a dry day or drains unusually slowly with a small amount of test water, that deserves attention before a storm.

A clean grate does not guarantee that the underground line is open. Sediment, roots, damaged pipe or an obstructed outlet can restrict a system farther downstream.

If a drainage system has a history of backing up during storms, the period immediately before severe weather is not the time to assume it has fixed itself.

Keep Swales, Ditches, Culverts and Natural Drainage Paths Open

Washington County Emergency Management specifically recommends clearing debris from gutters, drains, ditches and waterways on your property before flooding occurs. [2]

That matters particularly in Southern Utah because many properties rely partly on surface drainage rather than underground stormwater infrastructure.

Do not fill, dam or casually redirect a drainage swale simply because it is normally dry. A shallow depression that looks unimportant most of the year may be performing exactly as designed when heavy rain arrives.

Similarly, check culvert openings beneath driveways and private roads. Sediment, tumbleweeds, landscape material and debris can dramatically reduce the amount of water a culvert can carry.

If the blockage is located within a public drainage system, roadway or other infrastructure you do not own, contact the appropriate municipality rather than altering it yourself.

Look at Grading Around the House

Water should generally move away from the structure rather than collect beside it.

Watch for settlement around foundations, additions, patios, utility trenches and previous excavation. Soil placed around newly installed pipes or underground utilities can settle over time, creating low areas that were not present when the property was originally graded.

The same is true after landscape renovations, pool construction or major utility work.

Heavy rain is often when these grading problems first become obvious.

If water is actively moving toward a foundation, garage, basement-level opening or other vulnerable area, temporary storm preparation may help. Long-term correction, however, usually means understanding why the water is arriving there and establishing an appropriate drainage path rather than repeatedly pumping away the symptom.

Turn Off Unnecessary Irrigation

This one is simple.

If significant rainfall is expected, there is generally little reason to continue irrigating landscaping at the normal schedule. Turning off unnecessary irrigation reduces additional water entering already wet soil and prevents wasting water.

After the storm, wait until the landscape actually needs irrigation again rather than automatically returning to the previous schedule.

Pay Attention to Low Openings

Walk around the structure and identify places where water could enter before it ever reaches the main floor level.

These may include garage doors, basement or lower-level entries, window wells, crawlspace openings, vents and utility penetrations.

A driveway that slopes toward a garage deserves particular attention. So does a walkout basement or below-grade patio served by a drain.

If you have had water approach one of these openings during previous storms, prepare that area before heavy rain arrives rather than waiting to see whether this storm is worse.

Sandbags Can Help — but They Need to Be Used Before Water Arrives

Washington County and Be Ready Utah both recommend considering sandbags or similar flood-protection materials for vulnerable properties. [1][2]

Sandbags are most useful when they are planned and placed before active flooding begins. They can help redirect shallow surface water away from doors and other vulnerable openings, but they are not a substitute for a functioning drainage system and they cannot safely control every flooding situation.

Do not create a barrier that redirects water onto a neighboring property or blocks a public drainage route.

If water is already moving quickly or conditions are becoming unsafe, property protection stops being the priority. Follow emergency instructions and move to a safe location.

Know Where Buried Downspouts and Drain Lines Discharge

An underground drain is only useful if it has somewhere to release the water.

If roof drains, yard drains or trench drains disappear underground, know where they terminate. Outlets can become buried under sediment or landscaping, crushed, disconnected or obstructed over time.

A system that appears perfectly normal from the surface may have nowhere for the water to go once heavy rainfall begins.

This is one reason chronic drainage problems often require more than simply cleaning the visible grate.

Stormwater and Sanitary Sewer Are Not the Same System

These terms are sometimes used interchangeably by property owners, but they perform different jobs.

A stormwater system manages rain and surface runoff.

A sanitary sewer system carries wastewater from toilets, sinks, showers and other plumbing fixtures.

Rainwater generally should not be intentionally directed into a sanitary sewer system. During major storms, excess groundwater or stormwater entering sanitary infrastructure through defects or improper connections can also increase stress on the sewer system.

If plumbing fixtures begin behaving unusually during a storm — particularly floor drains, lower-level fixtures or cleanouts — do not assume it is simply a clogged sink or toilet.

Backflow Preventers and Backwater Valves Solve Different Problems

These are also easy to confuse.

A backflow preventer protects the potable water supply from contamination caused by reversal of flow through a cross connection. This is commonly relevant to irrigation systems, commercial properties and other plumbing configurations.

A backwater valve is designed to help prevent wastewater from reversing direction through a building drain under certain conditions.

They are not interchangeable.

If you are unsure what protection a property has, or whether a device applies to the problem you are trying to prevent, have the plumbing system evaluated rather than purchasing a device based solely on the word “backflow.”

For more information about potable-water protection, see our Backflow Testing, Repair & Installation resource.

Check Pumps Before You Need Them

Some Southern Utah properties have sump pumps, drainage pumps or lift systems protecting low areas.

A pump that has not operated in months should not be assumed to be ready simply because it worked the last time it was needed.

Where safely accessible, verify that the system has power, the discharge route is unobstructed and the pump operates normally. Be Ready Utah specifically recommends making sure sump pumps work before flooding and considering backup protection where appropriate. [1]

Never enter standing water around energized equipment to inspect a pump.

Septic Properties Need Special Attention

Heavy rainfall can saturate soil around a septic drain field and reduce its ability to accept wastewater.

During periods of saturated ground, avoid unnecessarily increasing household water use. If drains become slow, sewage odors develop or wastewater begins backing up, stop adding unnecessary water and have the system evaluated.

Do not open or enter septic tanks, and do not attempt to pump floodwater into or out of the system without appropriate professional guidance.

During the Storm: Watch the Property Safely

If it is safe to do so, heavy rain can reveal information that is difficult to learn at any other time.

From a protected location, observe where water actually travels.

Look for runoff entering the property, gutters overflowing, drains that cannot keep up, water ponding against structures, erosion near utility trenches, culverts backing up and unexpected flows across driveways or landscaping.

Photos and video can be extremely useful later when deciding how to correct a recurring drainage issue.

Do not enter moving floodwater to investigate a drain or retrieve an object. Do not drive through flooded roadways or around barricades. Washington County Emergency Management and Be Ready Utah both emphasize that conditions can change rapidly and that people should move to higher ground or evacuate when instructed. [1][2]

After the Rain: Look for What Changed

Once conditions are safe, walk the property again.

Heavy water movement can expose or create problems that were not obvious beforehand. Look for fresh erosion, settled soil, exposed pipes, damaged retaining areas, displaced landscape rock, new depressions, washed-out utility trenches and standing water that remains unusually long after the storm.

Also pay attention to changes inside the plumbing system: new slow drains, sewage odors, unusual sounds, leaks or fixtures that behaved differently during the storm.

Document any damage before making major repairs if an insurance claim may be involved.

Pay Particular Attention to Recent Underground Work

Recently disturbed soil behaves differently from soil that has been compacted and undisturbed for years.

If the property has recently had a water line, sewer line, electrical conduit, irrigation main, pool plumbing or other underground installation, inspect that route after significant rainfall.

Trench settlement is not automatically evidence that something was installed incorrectly; soils can consolidate after excavation. But significant settlement, erosion, exposed utilities or water repeatedly following the trench deserves evaluation.

For larger underground plumbing and utility issues, our Water & Sewer Line Services include in-house excavation, locating and hydrovac daylighting where appropriate.

Construction Sites, HOAs and Commercial Properties Have Additional Exposure

A larger property can collect and move a surprising amount of runoff.

Commercial sites, multifamily properties, construction sites and HOA common areas should pay particular attention to catch basins, private storm systems, parking-lot drains, culverts, detention areas, slopes, temporary erosion control and known low spots.

Construction activity can also change drainage patterns temporarily. Soil stockpiles, excavation, temporary access roads and equipment can obstruct routes that normally carry water.

Where underground utilities must be identified before excavation or drainage repairs, hydrovac daylighting can expose utilities with less risk of mechanical damage than blind digging.

Being Outside a FEMA Flood Zone Does Not Mean You Cannot Flood

Flood maps are important tools, but they do not predict every location where water can accumulate during an individual storm.

Be Ready Utah specifically warns that anywhere it can rain, it can flood, including properties outside mapped high-risk areas. [1]

Localized drainage failures, unusual rainfall intensity, construction changes, runoff from surrounding land and blocked drainage infrastructure can all create flooding away from a major river or mapped floodplain.

Property owners can use FEMA and Utah flood-hazard mapping to better understand their broader risk, but the history and drainage characteristics of the individual property matter too.

A Quick Heavy-Rain Checklist for Southern Utah Property Owners

Before significant rainfall arrives:

• Clear gutters, roof drains and accessible downspouts.

• Remove debris from area drains, catch basins and trench drains.

• Check drainage swales, ditches and private culverts for obstructions.

• Look for low areas directing water toward the structure.

• Confirm that buried drain outlets are open.

• Turn off unnecessary irrigation.

• Check vulnerable doors, garages, window wells and other low openings.

• Test existing pumps where it is safe to do so.

• Prepare sandbags or temporary barriers early if your property has a known vulnerable area.

• Secure loose outdoor items if strong winds are also forecast.

• Know where your main water shutoff is located.

• Photograph the property before the storm if flooding is a realistic concern.

• Monitor official weather and emergency updates.

Washington County Emergency Management specifically recommends assessing your property ahead of flooding, clearing gutters, drains and waterways, preparing sandbags where appropriate and staying connected to local alerts. [2]

When a Drainage Problem Becomes a Plumbing or Underground Utility Problem

Not every stormwater issue requires a plumber.

Surface grading, municipal stormwater infrastructure, landscape drainage and civil drainage design may involve landscapers, excavation contractors, engineers or the local jurisdiction depending on the problem.

Plumbing and underground utility expertise becomes particularly relevant when the issue involves building drains, sewer backups, water or sewer service lines, damaged buried piping, pumps, backflow protection, utility locating, excavation around existing utilities or suspected underground failures.

That distinction matters because the most effective repair starts with identifying where the water is coming from and what system is actually failing.

Artisan Group combines plumbing with in-house excavation and hydrovac capabilities, which allows us to investigate underground water and sewer problems without automatically handing the excavation portion of the job to another contractor.

Heavy Rain Is Useful Information

A major rain event is obviously not how anyone wants to discover a drainage problem.

But if one occurs, pay attention.

Where water flows during a significant storm tells you more about the actual drainage behavior of a property than months of dry-weather inspection can.

Once the weather clears, use that information to fix the underlying problem rather than waiting until the next storm to rediscover it.

For active flooding or an immediate threat to life or property, follow local emergency instructions and call 911 when emergency assistance is needed. For Washington County flood information, residents can text WCFLOOD to 888777. [2]

Frequently Asked Questions

Is St. George under a flood watch right now?

Yes. As of October 10, 2026, the National Weather Service has a Flood Watch in effect for St. George, Lower Washington County and much of Southern Utah through Monday afternoon. Forecasts and warnings can change, so check the National Weather Service for the latest information. [3]

When is the highest flash-flood risk?

Current National Weather Service guidance identifies Sunday as a particularly significant period, with flash flooding rated “Expected” at Snow Canyon/Red Cliffs and Zion National Park. Conditions remain capable of producing flooding before and after that period. [4]

Can my house flood even if it is not in a flood zone?

Yes. Flood maps describe identified flood hazards but cannot account for every localized drainage problem or individual storm. Utah emergency officials emphasize that flooding can occur outside mapped high-risk areas. [1]

Should I turn my sprinklers off before heavy rain?

In most cases, yes. If meaningful rainfall is expected, unnecessary irrigation adds water to soil that may already become saturated.

Should I clean a drain while it is flooding?

No. Do not enter moving or deep water to clear a drain. Floodwater can move rapidly, conceal damaged surfaces and carry debris or contamination. Address drainage systems before the storm or after conditions are safe.

Does a backflow preventer stop sewage from coming into my house?

Not generally. Potable-water backflow prevention and sanitary-sewer backwater protection are different systems designed for different hazards.

What should I do if water starts backing up through plumbing fixtures?

Reduce unnecessary water use and avoid contact with wastewater. If sewage is entering the building or a main drain appears to be backing up, the drainage system should be evaluated. During widespread flooding, conditions outside the property may also affect the system.

Who should I call about water crossing a public street or blocked public drainage?

For public drainage infrastructure, roadways or storm systems, contact the appropriate city, county or emergency authority. Do not enter floodwater or alter public drainage infrastructure yourself.

Sources

[1] Be Ready Utah — Flood Preparedness. Utah Division of Emergency Management guidance covering flood risk, home preparation, plumbing check valves, sump pumps, sandbags and flood safety. Be Ready Utah

[2] Washington County Emergency Management — Flood Information. Local guidance specifically recommends clearing gutters, drains, ditches and waterways, preparing sandbags, following local alerts and texting WCFLOOD to 888777 for flood information. Washington County

[3] National Weather Service Salt Lake City — Flood Watch, October 10, 2026. The active watch includes St. George, Hurricane, Ivins, Lower Washington County, Southwest Utah and Zion National Park from Saturday through Monday afternoon. Weather.gov

[4] National Weather Service Salt Lake City — Southern Utah Flash Flood Potential Rating, October 10, 2026. Snow Canyon/Red Cliffs and Zion National Park are rated Probable Saturday, Expected Sunday and Probable Monday. National Weather Service

[5] KSL Weather — October 9–10, 2026 outlook. Current reporting identifies Sunday as a primary hazard period, with the highest flash-flood threat in southwest Utah and widespread rain continuing into Monday.

Tank vs. Tankless Water Heaters in Southern Utah: Which Is Right for Your Home?

For many Southern Utah homeowners planning to stay in their home long term, a properly sized tankless water heater is the stronger choice. Tankless systems can provide continuous hot water within their rated capacity, take up significantly less space, reduce standby energy loss and generally have a longer expected service life than traditional storage tanks. A conventional tank can still be the right choice when the goal is a straightforward replacement and the existing system already meets the household’s needs. [1][2]

The important part is properly sized.

Choosing a water heater should involve more than counting bathrooms or replacing a 50 gallon tank with another 50 gallon tank. Flow rate, temperature rise, water pressure, pipe sizing, recirculation, gas or electrical capacity, water quality and the way the home was originally plumbed can all change the answer.

That is especially important in Southern Utah, where hard water and large homes with long plumbing runs are common considerations.

Tank vs. Tankless at a Glance

Conventional TankTanklessHot water supplyLimited to stored volume and recoveryContinuous within the unit’s rated capacitySpaceRequires floor space for the tankCompact and typically wall mountedExpected lifespanCommonly about 8 to 12 yearsCommonly 15 to 20 years or more with proper maintenanceStandby heat lossYesMinimal because water is heated on demandRecirculationCompatibleAdvanced recirculation options availableHigh demand homesDepends on tank size and recoveryDepends on simultaneous flow and temperature riseHard water concernsSediment and tank corrosionScale inside the heat exchangerBest fitSimple replacement and predictable demandLong term ownership, continuous hot water, space savings and system upgrades

Expected life varies with equipment, installation, water chemistry, use and maintenance. Rheem currently describes traditional tank life as approximately 8 to 12 years and tankless life as approximately 15 to 20 years or more with proper care. [2] Rheem

Why Bathroom Count Is Not Enough

One of the most common ways tankless water heaters are marketed is by bathroom count.

A chart might suggest one size for a two bathroom house and another for a four bathroom house. That is useful as a rough starting point, but it is not how we want to make the final decision.

A four bathroom home occupied by two people may have relatively low simultaneous demand. A two bathroom home with a large primary shower, rain head, handheld shower, body sprays and a high flow tub filler can require considerably more hot water at one time.

The more useful question is:

How much hot water could this house realistically use at the same time?

EPA WaterSense showerheads are limited to 2.0 gallons per minute. Two showers operating simultaneously can therefore represent roughly 4 GPM before adding a kitchen faucet, another bathroom fixture or other hot water demand. Multiple showering devices can increase the total further. [3] EPA

That simultaneous demand matters much more than the number of bathroom doors in the house.

Tankless Sizing Is About Flow Rate and Temperature Rise

Gallons per minute are only half of tankless sizing.

The other half is temperature rise, or how much the incoming water must be heated before it reaches the desired outlet temperature.

If water enters the heater at 60°F and the system is set to provide 120°F water, the heater needs to produce a 60°F temperature rise.

The greater that temperature rise, the less water a given tankless unit can heat at one time.

Navien’s NPE 240A2 illustrates this clearly. Navien rates the unit at 11.2 GPM with a 35°F temperature rise, 7.1 GPM with a 55°F rise and 6.0 GPM with a 65°F rise. [4] It is the same water heater in every example. Navien

That is why the largest GPM number on a product page should never be treated as the amount of hot water a home will receive under every condition.

Actual tankless capacity depends on both demand and required temperature rise.

Water Pressure and Pipe Size Still Matter

A tankless water heater heats water. It does not create water pressure or correct restrictions elsewhere in the plumbing system.

If the house has undersized piping, a restrictive pressure regulator, filtration equipment, a water softener issue or another source of pressure loss, changing the water heater will not make those restrictions disappear.

There is also an important difference between static pressure and dynamic pressure.

Static pressure is what a gauge reads when the plumbing system is not flowing. Dynamic pressure is what the system can maintain while fixtures are actually running.

For a home with multiple bathrooms or high flow fixtures, what happens when several fixtures operate at once is far more useful than a single pressure reading with everything turned off.

The hot water distribution piping matters for the same reason. Pipe diameter, length and layout affect how much water can move through the system and how quickly hot water reaches distant fixtures.

Tankless Does Not Automatically Mean Instant Hot Water

This distinction is important.

Tankless means on demand heating. It does not necessarily mean instant delivery.

If the water heater is in the garage and the primary bathroom is on the opposite side of the house, the water sitting inside that hot water line has to leave before newly heated water arrives.

Installing a tankless heater does not eliminate the physical volume of water inside the piping.

This is where recirculation becomes important.

How Recirculation Changes the System

A dedicated hot water recirculation line returns water from the distribution system back toward the heater, reducing the amount of cooled water that has to be discharged before hot water reaches the fixture.

Some Southern Utah homes already have a dedicated return line. Others were not plumbed with one.

Those homes should not automatically be treated the same way.

For whole home gas tankless installations, Artisan Plumbing primarily installs Navien, and recirculation is one reason. Navien’s NPE A2 ComfortFlow system incorporates a small internal buffer tank, recirculation pump and controls into the tankless unit. Navien states that the system is designed to reduce the cold water sandwich effect and reduce hot water delivery time. [5] Navien

Recirculation still needs to be configured correctly.

Running an external pump continuously is not necessarily better. Navien’s own warranty distinguishes between controlled and uncontrolled recirculation. For qualifying residential NPE A2 installations, its published heat exchanger warranty is 15 years under standard or controlled recirculation versus 5 years under uncontrolled recirculation. [6] Navien

That is a good example of why the water heater and the plumbing around it need to be considered as one system.

Can Tankless Be Paired With a Storage Tank?

Yes.

The choice is not always limited to either a traditional storage water heater or one standalone tankless unit.

Tankless equipment can also be incorporated into a system with supplemental hot water storage.

This can be useful in more demanding applications where the plumbing design benefits from having stored hot water available while tankless equipment provides heating and recovery. The exact configuration depends on the home and its demand.

This is not an improvised concept. Navien publishes specific piping diagrams for NPE tankless systems used with one or more storage tanks. [7] Navien

For most homes, this level of design is unnecessary. But it is important because it demonstrates why large or unusual homes should not be reduced to a simple online sizing chart.

Sometimes the best answer is a water heating system, not a single appliance.

Southern Utah Hard Water Matters

Water quality needs to be part of any serious water heater discussion in Washington County.

Washington City’s drinking water information describes Southern Utah water sources as ranging from hard, at 7 to 10 grains per gallon, to very hard, above 10 grains per gallon. The hardness comes primarily from naturally occurring calcium and magnesium. [8] Digital Library of Utah

Water conditions can also vary by location and water source. The Washington County Water Conservancy District reports that more than 80 percent of the drinking water it delivers comes from surface water, with the remainder coming from groundwater. Municipalities may also blend district water with additional sources. [9] WCWCD

That means we do not assume every house in St. George, Washington or elsewhere in the county has identical water chemistry.

Hard water and tank water heaters

Minerals can accumulate as sediment in the bottom of a storage tank.

The steel tank itself is also protected by an anode rod. Bradford White describes the anode as a sacrificial component that gives up its electrons to help protect the carbon steel tank, with water chemistry affecting how quickly that anode is consumed. [10] Bradford White For The Pro®

Eventually, a conventional storage tank remains a vessel that can corrode and leak.

Hard water and tankless water heaters

Tankless removes the large storage vessel, but it does not eliminate mineral maintenance.

Scale can form inside the heat exchanger and reduce heat transfer and performance.

That is why water treatment and appropriate maintenance matter in Southern Utah regardless of which system is selected.

Tankless should not be sold as maintenance free. Its advantage is a different system design with a longer expected service horizon when it is installed and maintained properly.

Why We Generally Favor Gas Tankless for Long Term Ownership

For many homeowners who expect to remain in their home for years, gas tankless has several meaningful advantages.

It eliminates the large storage tank, takes up very little floor space, provides continuous hot water within its rated capacity and avoids the standby losses associated with keeping a tank full of water hot throughout the day.

DOE reports that on demand water heaters can be 24 to 34 percent more energy efficient than conventional storage water heaters in households using 41 gallons or less of hot water per day. For households using around 86 gallons per day, DOE estimates an 8 to 14 percent advantage. [1] The Department of Energy's Energy.gov

Current ENERGY STAR requirements for certified gas tankless water heaters require a UEF of at least 0.95. [11] Navien’s NPE 240A2, for example, is rated at 0.95 UEF and uses condensing technology with dual stainless steel heat exchangers. ENERGY STAR

Tankless also has a longer expected useful life. ENERGY STAR currently cites a life expectancy of about 20 years for gas tankless water heaters, while manufacturer guidance commonly places traditional tanks around 8 to 12 years. [2][12] ENERGY STAR

Those advantages are why we see tankless as the stronger long term direction for many gas equipped Southern Utah homes.

When a Traditional Tank Still Makes Sense

A conventional tank is not automatically the wrong choice.

If a homeowner wants a straightforward replacement, the current tank system works well for the household, hot water demand is predictable and there is little reason to redesign the surrounding plumbing, another tank may be completely appropriate.

Ownership horizon matters too.

Someone planning to remain in a home for fifteen years may place significant value on the longer expected life, space savings and additional capabilities of a tankless system.

Someone expecting to move relatively soon may reasonably prioritize a simpler replacement.

For conventional tank installations, Artisan Plumbing uses Rheem or Bradford White, with the specific equipment selected according to the fuel type, available space, capacity and conditions of the home.

We do not believe one storage tank is the correct answer for every house.

What About Electric Tankless?

For electric tankless applications, Artisan Plumbing primarily installs Rheem.

Electric tankless has some of the same advantages as gas tankless. It is compact, heats water on demand and eliminates the traditional storage tank.

The major consideration is electrical capacity.

Heating several gallons of water per minute instantaneously with electricity can require a substantial electrical load. As one example, Rheem lists a 208 volt configuration of its 36 kW RETEX 36 at 127 amps with four recommended 40 amp breakers. [13] Rheem

That does not make electric tankless impractical. It simply means the electrical service, panel capacity and desired hot water demand need to be evaluated before selecting equipment.

Gas tankless and electric tankless solve the same basic problem in very different ways.

What Artisan Looks at Before Recommending Tank or Tankless

For a Southern Utah home, we want to understand the whole system, including the number of occupants, realistic simultaneous fixture use, shower and tub flow rates, required temperature rise, dynamic water pressure, pipe sizes, plumbing layout, water heater location, existing recirculation, gas or electrical capacity and water quality.

We also want to know what the homeowner is trying to accomplish.

Running out of hot water is one problem. Waiting too long for hot water at a distant bathroom is another. Poor water pressure is another. Hard water scale is another.

Changing the water heater can solve some of those problems, but it cannot automatically solve all of them.

That distinction is what allows the equipment to be selected around the home rather than expecting the home to work around the equipment.

Tank or Tankless: The Bottom Line

For many gas equipped homes in St. George and throughout Southern Utah, particularly when the homeowner plans to stay long term, we believe a properly designed tankless system is the stronger long term choice.

For whole home gas tankless installations, Artisan Plumbing primarily installs Navien. For electric tankless applications, we primarily use Rheem. When a traditional storage water heater makes more sense, we install Rheem or Bradford White based on the needs of the home.

But the brand and model come after the plumbing is evaluated.

Bathroom count alone is not enough.

A good water heater decision accounts for how much hot water the house actually uses, how quickly that water needs to be heated, how it moves through the plumbing, what happens to pressure under demand, whether recirculation is present and how Southern Utah water will affect the equipment over time.

The best water heater is the one designed to work with the house around it.

Frequently Asked Questions

Is a tankless water heater worth it in St. George, Utah?

For many homeowners who plan to stay in their home long term, yes. Tankless can provide continuous hot water within its rated capacity, save space, reduce standby energy loss and offer a longer expected service life. The home’s plumbing, gas or electrical capacity, recirculation and water quality should still be evaluated before converting.

How many bathrooms can one tankless water heater handle?

There is no reliable answer based on bathroom count alone. A tankless heater should be sized according to simultaneous flow demand and temperature rise. A two bathroom home with several high flow shower fixtures can require more capacity than a four bathroom home with modest simultaneous use.

Does tankless give you instant hot water?

Not automatically. Tankless heats water on demand, but hot water still has to travel through the piping between the heater and the fixture. Plumbing layout and recirculation determine how quickly hot water arrives.

Does Southern Utah hard water affect tankless water heaters?

Yes. Mineral scale can accumulate inside a tankless heat exchanger. Traditional tanks are also affected by hard water through sediment accumulation and the interaction between water chemistry, the tank and its sacrificial anode. Proper maintenance and water treatment should be considered with either system.

Can a tankless water heater be used with a storage tank?

Yes. Manufacturers publish system designs that combine tankless heating with supplemental storage for certain applications. This can be useful in homes with unusual demand or more complex water heating requirements. The configuration should be designed specifically for the application. Navien

Sources

1. U.S. Department of Energy, Energy Saver: Tips on Saving Money and Energy in Your Home. DOE reports the efficiency ranges for on demand water heaters compared with conventional storage water heaters. The Department of Energy's Energy.gov

2. Rheem Manufacturing Company, Water Heater Lifespan: When to Repair vs. Replace and Tank vs. Tankless Water Heater Lifespan Comparison. Current manufacturer guidance places traditional tanks around 8 to 12 years and tankless equipment around 15 to 20 years or more with proper care. Rheem

3. U.S. Environmental Protection Agency, WaterSense Showerhead Specification and Technical Guidance. WaterSense labeled showerheads are limited to 2.0 GPM and EPA guidance addresses multiple showering devices. EPA

4. Navien, NPE 240A2 Technical Specifications. Manufacturer flow ratings illustrate the relationship between temperature rise and available GPM. Navien

5. Navien, NPE A2 ComfortFlow System. Navien documents the integrated buffer tank, recirculation pump and controls used in applicable NPE A2 models. Navien

6. Navien, NPE A2 Residential Warranty. Manufacturer warranty terms distinguish controlled recirculation from uncontrolled recirculation. Navien

7. Navien, NPE 2 Piping Applications. Navien publishes application drawings for tankless systems used with one or more storage tanks. Navien

8. Washington City, Utah, Annual Drinking Water Quality Report. The city describes Southern Utah water sources as ranging from hard to very hard because of naturally occurring calcium and magnesium. Digital Library of Utah

9. Washington County Water Conservancy District, Water Quality. WCWCD describes the region’s surface and groundwater sources and notes that retail providers may blend district water with other sources. WCWCD

10. Bradford White, Water Heater Anode Rods. Bradford White explains the sacrificial anode process and the role water chemistry plays in tank protection. Bradford White For The Pro®

11. ENERGY STAR, Residential Water Heater Key Product Criteria. Current criteria require qualifying gas fired instantaneous water heaters to achieve at least 0.95 UEF. ENERGY STAR

12. ENERGY STAR, Save More with ENERGY STAR Gas Tankless Water Heaters. ENERGY STAR cites approximately 20 years of life expectancy for gas tankless equipment. ENERGY STAR

13. Rheem, RETEX 36 Electric Tankless Water Heater Specifications. Manufacturer electrical specifications demonstrate the electrical demand associated with larger whole home electric tankless systems.

Fall Plumbing Maintenance in Southern Utah: What Homeowners Actually Need to Do

Fall plumbing maintenance in Southern Utah is relatively simple, but a few items deserve attention before freezing temperatures arrive. Homeowners should know where their main water shutoff is, disconnect hoses, protect exposed plumbing and irrigation components, keep annual water heater maintenance current, and make sure household water pressure is within a safe range.

St. George winters are mild compared with northern Utah, but freezing temperatures are still part of our climate. Historical Utah Climate Center data for St. George puts the average first fall freeze around October 29, with a median date of November 1.[1]

Southern Utah also has another plumbing concern that does not disappear with the seasons: hard water. That makes fall a useful time to address both cold weather preparation and routine maintenance before winter.

Know Where Your Main Water Shutoff Is

Every homeowner should know where the main water shutoff is before there is an emergency.

If a supply line fails, a pipe breaks, or a water heater begins leaking, shutting off the water quickly can greatly reduce property damage. Utah State University Extension specifically recommends that adults and older children know where the main shutoff is and how to use it.[2]

Locate the valve and make sure it is accessible rather than buried behind storage or landscaping.

There is one important caveat. If an older shutoff valve is badly corroded, leaking, difficult to operate, or has not been moved in years, do not force it simply for the sake of testing it. A questionable valve is better evaluated and repaired before an emergency than discovered during one.

Disconnect Garden Hoses Before Freezing Weather

Even a frost proof hose bib can be damaged if a hose or other attachment prevents it from draining correctly.

A standard frost proof faucet is designed so that the actual shutoff point sits farther inside the structure. When the faucet is turned off and the hose is removed, the remaining water can drain from the exposed portion of the faucet.

If a hose, splitter, timer, or other restriction remains attached, water can stay trapped inside. When that water freezes and expands, the faucet tube can split.[3]

Before freezing temperatures arrive:

• Disconnect garden hoses

• Remove splitters, timers, and other attachments that prevent drainage

• Check hose bibs for dripping or looseness

• Look for damaged insulation or exposed piping nearby

A leaking hose bib should be repaired rather than simply covered for winter.

Check Plumbing in Garages and Other Vulnerable Areas

The plumbing most vulnerable to a Southern Utah freeze is often outside the conditioned living area of the home.

Pay particular attention to:

• Garages

• Workshops

• Casitas

• Outdoor kitchens

• RV hookups

• Utility areas

• Pool equipment areas

• Exterior water lines

• Plumbing near exterior doors or openings

Look for exposed water lines, missing or deteriorated insulation, leaking fittings, and areas where cold air can reach plumbing.

The goal is not to insulate every pipe in the house. It is to identify the portions of the plumbing system that are genuinely exposed to colder conditions.

Prepare Irrigation and Backflow Equipment for Winter

Southern Utah irrigation should be adjusted for our actual climate rather than following a winterization schedule written for much colder regions.

The Washington County Water Conservancy District recommends reducing irrigation to no more than once per week from November through February and notes that irrigation is typically unnecessary in December and January.[4]

When irrigation use winds down, homeowners should know where the irrigation shutoff is located and make sure exposed components are protected from freezing.

Utah State University recommends shutting off the irrigation water supply, releasing pressure from the system, opening drain valves where applicable, and draining water from components that can freeze.[5]

Pay particular attention to exposed backflow assemblies, valves, and above ground piping. A short period of freezing weather can damage these components even when underground irrigation piping is adequately protected.

The exact winterization process depends on how the system was designed. Some systems drain easily. Others require additional steps.

Make Annual Water Heater Maintenance Part of Your Routine

Water heater maintenance is particularly important in Washington County because of our hard water.

The City of St. George currently advises residents using water softeners to generally start around an 18 grain setting and adjust higher if needed, up to 22 grains.[6] That is a useful indication of the mineral load local plumbing and water heating equipment routinely encounter.

Heating hard water encourages mineral scale and sediment to accumulate inside water heating equipment.

How Often Should a Tank Water Heater Be Flushed in Southern Utah?

For Southern Utah homes, annual maintenance is a practical minimum.

Inside a traditional tank water heater, mineral sediment settles at the bottom of the tank. Over time, that buildup can interfere with heat transfer, contribute to noise, and affect water heater performance.

Bradford White identifies sediment as a significant concern, particularly in hard water areas, and includes tank draining and flushing as part of regular water heater maintenance.[7] Rheem also recommends routine flushing and notes that hard water can require more frequent service.[8]

In especially hard water conditions, annual service may not always be enough. The appropriate interval can depend on the home's water treatment, water usage, equipment, and the amount of sediment present.

How Often Should a Tankless Water Heater Be Descaled in Southern Utah?

Tankless water heaters should also receive at least annual maintenance in our area.

Tankless does not mean scale free. Instead of settling at the bottom of a storage tank, minerals can accumulate inside the heat exchanger.

Navien recommends descaling at least once per year and specifically notes that higher mineral content, higher water temperatures, and greater hot water use may require more frequent descaling.[9]

A proper tankless maintenance service may also include cleaning filters, inspecting the condensate system on condensing units, checking for leakage or corrosion, and evaluating the overall condition of the installation.

For Washington County homeowners, annual water heater maintenance should be viewed as routine preventive maintenance rather than something to postpone until the unit begins showing symptoms.

If You Have a Tankless Water Heater, Keep Freeze Protection in Mind

Many modern tankless water heaters have built in freeze protection, but it has limitations.

For example, Navien instructs homeowners to keep the unit connected to electricity during freezing conditions because its internal freeze protection requires power. The manufacturer also notes that built in freeze protection does not protect exterior water piping or the condensate drain line on a condensing system.[10]

That makes garage and exterior installations especially important to evaluate before freezing weather.

If a tankless water heater will be shut down at a vacant or seasonal property during winter, proper winterization generally requires more than simply turning the unit off. Follow the manufacturer's procedure for the specific equipment.

Check Your Home's Water Pressure

High water pressure can feel like a benefit at the faucet, but excessive pressure puts unnecessary stress on the plumbing system.

The plumbing code adopted in Utah limits static water pressure to 80 psi. When incoming pressure exceeds that level, an approved pressure reducing valve is required to regulate pressure entering the home's plumbing system.[11]

A pressure reducing valve can wear out over time. When it does, household pressure may gradually increase without producing one obvious failure.

Excessive pressure can place additional stress on:

• Faucet cartridges

• Toilet fill valves

• Appliance supply lines

• Water heater components

• Shutoff valves

• Other fixtures and connections throughout the home

A simple pressure test provides useful information about the condition of the home's water supply system and can identify a failing regulator before it causes other problems.

Look for Small Leaks Before They Become Larger Problems

Fall is also a good opportunity to look at the plumbing you can easily see.

Check under sinks, around toilets, at appliance connections, around the water heater, and anywhere there has been previous plumbing work.

Watch for:

• Moisture

• Water staining

• Mineral deposits

• Corrosion

• Warped cabinetry

• Dampness

• Dripping valves or fittings

Small leaks often leave evidence before they become significant failures.

If You Suspect a Hidden Leak, Check the Water Meter

There is no reason to perform a lengthy water meter test as part of every fall checklist. It becomes useful when there is actually a reason to suspect a hidden leak.

Possible signs include an unexplained increase in the water bill, hearing water when no fixtures are running, unexpected moisture, or water use that does not make sense.

The EPA's WaterSense program recommends reading the water meter, using no water for approximately two hours, and then checking the meter again. If the reading changes while no water was intentionally used, there is likely water moving somewhere in the system.[12]

The meter cannot tell you where the leak is, but it can help confirm that further investigation is warranted.

Possible sources include toilets, irrigation, fixtures, appliance connections, water heaters, or concealed water lines.

What Does Not Need to Become a “Fall Plumbing Task”

Not every plumbing service belongs on a seasonal checklist.

A garbage disposal does not require a fall inspection simply because the weather changed. Neither does a sewer camera inspection, whole home repipe evaluation, or arbitrary inspection of every drain.

Those systems should be evaluated when there are symptoms, known risks, or a legitimate maintenance reason to inspect them.

A useful fall plumbing check should focus on conditions that actually change as Southern Utah moves into winter and preventive maintenance the plumbing system already needs.

Southern Utah Fall Plumbing Checklist

Before colder weather arrives:

• Locate your main water shutoff and make sure it is accessible

• Make sure the adults in the home know how to shut off the water

• Disconnect garden hoses, splitters, and timers

• Check exterior hose bibs for leaks or damage

• Inspect exposed plumbing in garages, casitas, outdoor kitchens, and other vulnerable areas

• Prepare irrigation and exposed backflow equipment for freezing conditions

• Complete annual maintenance on tank and tankless water heaters

• Make sure tankless freeze protection can operate where applicable

• Check household water pressure

• Look for visible signs of leaks

• Use the water meter as a diagnostic tool if a hidden leak is suspected

Some of these tasks are simple for homeowners to handle themselves. Others require equipment, experience, or a closer evaluation of the plumbing system.

Common Fall Plumbing Questions in Southern Utah

Do pipes actually freeze in St. George, Utah?

Yes. Southern Utah has relatively mild winters, but freezing temperatures still occur. Historical St. George climate data places the average first fall freeze around October 29.[1] Plumbing in garages, exterior walls, outdoor kitchens, utility spaces, and other exposed locations can be particularly vulnerable.

Do I need to disconnect a hose from a frost proof faucet?

Yes. Standard frost proof faucets need to drain after they are turned off. A hose or attachment left connected can trap water inside the faucet and allow it to freeze and split.[3]

How often should I flush my water heater in Southern Utah?

Annual maintenance is a practical minimum for both tank and tankless water heaters in Washington County because of our hard water. Depending on the equipment, water treatment, mineral content, and household usage, more frequent service may be appropriate.[7][8][9]

Can a tankless water heater freeze?

Yes. Some tankless units have built in freeze protection, but that protection generally requires electricity and does not necessarily protect connected piping or condensate drains. Manufacturer instructions for the specific unit should always be followed.[10]

What water pressure is too high for a house?

Utah's adopted plumbing code limits static residential water pressure to 80 psi. When supply pressure exceeds that level, a pressure reducing valve is required.[11]

How can I tell if I have a hidden water leak?

If you suspect a leak, turn off all intentional water use and compare your water meter reading over approximately two hours. If the reading changes, water is likely moving somewhere in the system and the source should be investigated.[12]

Fall Plumbing Readiness in Southern Utah

Good fall plumbing maintenance is not about creating a long list of seasonal services homeowners do not need. It is about identifying the few areas where colder weather and Southern Utah's water conditions create legitimate risks.

Artisan Plumbing's Fall Plumbing Readiness Service focuses on those practical items, including water pressure, shutoff valves, vulnerable exterior plumbing, visible leaks, and annual water heater maintenance.

We evaluate what is actually there, explain what we find, and recommend repairs or maintenance where there is a reason to do it.

Artisan Plumbing serves St. George, Washington, Hurricane, Ivins, Santa Clara, and surrounding Washington County communities.

435 900 5600

Sources

[1] Utah Climate Center, Utah State University. St. George Freeze Details. Historical St. George freeze data through 2025.

[2] Utah State University Extension. Advice to Prevent Frozen Pipes. Guidance on freeze protection and knowing the location of the home's main water shutoff.

[3] Woodford Manufacturing. How a Standard Frost Proof Faucet Works. Manufacturer guidance on faucet drainage and freeze damage caused by attached hoses or improper drainage.

[4] Washington County Water Conservancy District. Watering Guide. Seasonal irrigation recommendations for Washington County.

[5] Utah State University Extension. Irrigation System Maintenance. Peer reviewed guidance for winterizing residential irrigation systems.

[6] City of St. George Water Services. Water Distribution. Current local guidance for residential water softener settings.

[7] Bradford White. Spring Cleaning for Your Water Heater: A Maintenance Guide. Manufacturer guidance regarding sediment, hard water, and regular tank flushing.

[8] Rheem. How to Keep Your Tank and Tankless Water Heaters Running at Peak Performance and How Often to Flush Your Water Heater. Manufacturer maintenance guidance addressing annual service and hard water conditions.

[9] Navien. How to Descale Your Tankless Water Heater and Tankless Water Heater Maintenance Tips. Manufacturer guidance recommending at least annual descaling and additional maintenance in higher mineral content water.

[10] Navien. Preventing a Frozen Tankless Water Heater. Manufacturer guidance regarding electrical power, internal freeze protection, exterior piping, and condensate drains.

[11] Utah State Construction Code and 2021 International Plumbing Code, Section 604.8. Utah's adopted plumbing code limits static water pressure to 80 psi and requires pressure regulation where incoming pressure exceeds that level.

[12] U.S. Environmental Protection Agency WaterSense. Home Maintenance and Fix a Leak Week. Guidance for using a water meter to help identify suspected household leaks.

Why More Plumbing Contractors Should Be Looking at Hydrovac

Below the Surface | Artisan Group

There’s an opportunity right beneath your feet.

Plumbing contractors know how to repair the water main, replace the sewer line, or make the underground connection. The problem is that getting to the plumbing can turn a relatively straightforward job into an excavation project. Sometimes that means tying up a crew and equipment on a small dig. Other times, it means hours of careful excavation around existing utilities, difficult access, or working through Southern Utah’s summer heat.

Your crew may be perfectly capable of handling the excavation. That doesn’t necessarily mean it is the best use of their time or resources.

Hydrovac gives plumbing contractors another option. Instead of owning another specialized piece of equipment or committing a crew to a dig that is consuming the job, you can bring in hydrovac for the excavation that calls for it, get the pipe exposed, and move your crew into the plumbing work.

You don’t have to own the machine to put it to work.

Stop Treating Every Underground Job Like a Trenching Job

An excavator is built to move dirt efficiently. Hydrovac uses pressurized water to loosen soil and a vacuum to remove the material, allowing more controlled excavation around buried infrastructure.

That makes it particularly useful when a contractor needs to expose a water main, locate a sewer connection, verify a utility crossing, or remove soil around existing pipes and conduits. It can also provide working room around an underground repair without requiring the same approach used to open an entire trench.

Hydrovac is not a replacement for an excavator, and treating it that way misses the point. Conventional equipment remains the right choice for bulk excavation on many projects. Hydrovac becomes useful when the excavation reaches the point where targeted exposure and greater control matter more than moving a large volume of material.

On the same project, there may be a place for both.

The Locate Marks Don’t Tell You Everything

A painted line on the ground is not a verified utility depth.

Before crossing an existing facility, a contractor may need to establish where it actually sits underground. Utility daylighting, sometimes called potholing, creates a targeted excavation that allows the facility’s location and depth to be physically verified before the larger excavation continues.

Utah’s excavation procedures require additional precautions when working near marked underground facilities.[1] OSHA also recognizes appropriately adjusted hydro vacuum equipment as an acceptable means of locating underground installations under specified conditions.[2]

Hydrovac is not damage proof. Water pressure, operating technique, utility condition, soil conditions, and the type of facility being exposed still matter. It does, however, give a contractor a way to uncover existing infrastructure and gather information that surface markings alone cannot provide.

That information can change how the rest of the project proceeds. Knowing the actual depth and position of an existing line can affect trench alignment, elevation, clearance, equipment selection, and the sequence of work before a larger excavation is opened.

When the Dig Isn’t Worth Tying Up Your Crew

Not every underground repair warrants committing your own crew and equipment to hours of excavation.

Sometimes it is a relatively small exposure in a difficult location. Sometimes the crew is carefully working around existing infrastructure. Sometimes Southern Utah weather makes an otherwise simple hand excavation a much more demanding part of the day. In other cases, the excavation is simply taking longer than the plumbing work it was supposed to support.

That does not mean your crew cannot handle it. The better question is whether they should.

Bringing in hydrovac for targeted excavation can get the line exposed and establish the working room your plumbers need so they can move into the repair or installation. On the right project, it keeps a relatively small excavation from consuming the schedule and resources of the larger plumbing job.

Hand digging will always have its place, and hydrovac will not make every excavation faster or easier. The opportunity is recognizing when the excavation has become a disproportionate part of the job and bringing in specialized equipment to handle it.

Hydrovac Capability Without Hydrovac Ownership

This is where the business case becomes more interesting for plumbing contractors.

Buying a hydrovac is only the beginning of the investment. Once you account for a purchase or lease payment, insurance, maintenance, repairs, storage, a suitable tow vehicle for trailer mounted equipment, operator requirements, water supply, slurry handling and downtime, ownership can be difficult to justify for a company that only needs the equipment periodically.

Depending on the vehicle combination and how it is operated, commercial transportation requirements can add another layer of registration and compliance.[3] Then there is the simplest equipment problem of all: when your machine is down, it is your problem to solve.

For a contractor using hydrovac every day, those costs may make sense. For a plumbing company that encounters the right application a few times a month, or only on certain types of underground projects, the economics can look very different.

That does not mean you need to pass on work that would benefit from hydrovac.

A plumbing contractor can estimate the complete project, subcontract the specialized excavation, and retain the plumbing scope. When the project is priced correctly, the subcontracted excavation can be incorporated into the overall job while leaving room for the contractor’s coordination, project responsibility, overhead, and intended margin. Profitability is not automatic, but neither is equipment ownership a prerequisite for offering the capability.

The better question is not, “Should we buy a hydrovac?” It may be, “How often do we actually need one, and what is the most profitable way to have access to it when we do?”

Look at the Job Cost, Not Just the Equipment Rate

Hydrovac can carry a higher hourly equipment rate than other excavation methods. Looking at that number by itself does not tell you which approach will produce the best result for the project.

A contractor should look at the complete operation. How long will the excavation take? How many people will it occupy? What equipment needs to be mobilized? Can an excavator handle the bulk work while hydrovac handles the utility exposure? What are the material handling and disposal requirements? How quickly can the plumbing crew move into its scope once the excavation is complete?

There will be plenty of jobs where conventional excavation makes more sense. A small dig in open ground may not justify specialized equipment, while dense caliche or rock can make hydrovac inefficient or unsuitable for portions of a project.

There are other jobs where a relatively small excavation is holding up an otherwise productive plumbing crew. In those cases, the relevant comparison is not simply the hourly rate of one machine against another. It is the cost and operational impact of completing that portion of the project using each available method.

The right excavation method should support the economics of the entire job.

Working With an Excavation Contractor Who Understands Plumbing

Subcontracting the excavation only works well if the excavation crew understands what your plumbers need when the digging is finished.

A pipe being visible is not necessarily the same as a pipe being ready to work on. Your crew may need clearance beneath the line, room for a coupling, access to a connection, or enough exposed pipe to remove and replace a damaged section. The location and shape of the excavation can affect whether the plumbing crew can actually perform the work efficiently once they arrive.

Those details are easier to address before excavation begins than after the equipment has left the site.

This is where Artisan Group is different from a hydrovac operator that only sees the excavation scope. Artisan operates full service plumbing and excavation divisions alongside our hydrovac equipment. We understand what it takes to expose the pipe, but we also understand what the plumber needs to do next.

When another plumbing contractor hires Artisan for hydrovac or excavation support, we are not there to take over the plumbing job or the customer relationship. Our job is to understand your scope, coordinate with your crew, and perform the excavation with the work that follows in mind.

Tell us what you are repairing or installing, what needs to be exposed, and what your guys need to complete the work. We can provide hydrovac as a standalone service, combine it with conventional excavation when the project calls for both, and then hand the site back to your crew for the plumbing work.

Having full service plumbing and excavation divisions gives us an understanding of both sides of that handoff. We know why the excavation matters because our own plumbers work on the other side of it.

For plumbing contractors, that creates a straightforward opportunity: take on the right underground work, bring in specialized excavation when it makes sense, and keep your own people focused where they are most productive.

You handle the plumbing. We understand what you need from the excavation.

Need Hydrovac Support on an Underground Project?

Artisan Group provides hydrovac excavation for plumbing contractors and other trades throughout St. George, Washington, Hurricane, Ivins, Santa Clara, and surrounding Washington County communities.

If you have a project that requires utility exposure, potholing, targeted excavation, or a combination of hydrovac and conventional excavation, send us the project location, scope, and anticipated schedule. We can look at what needs to be exposed and determine whether hydrovac is the right fit for that portion of the job.

Explore Our Hydrovac Excavation Services →

Sources

1. Blue Stakes of Utah 811. Excavator’s Guide. Utah utility marking, tolerance zone, and excavation procedures.

2. Occupational Safety and Health Administration. Use of Hydro Vacuum Excavation Equipment and Other Acceptable Means to Locate Underground Utility Installations. October 23, 2003.

3. Federal Motor Carrier Safety Administration. Do I Need a USDOT Number? Commercial vehicle requirements vary based on vehicle configuration, weight, operation, and jurisdiction.

What’s in Southern Utah’s Drinking Water? Local Test Results Explained.

Southern Utah's drinking water contains more than just minerals. Public testing in Washington County documents arsenic, fluoride, dissolved solids, and substances formed during water treatment.

We compared local water quality reports with EPA standards, national data, and Environmental Working Group (EWG) health guidelines to see what the results actually mean.

KEY TAKEAWAY

Southern Utah's reported water quality varies by source and municipality. Water can meet federal drinking water standards while still containing measurable substances that homeowners may prefer to filter.

St. George's historical arsenic average, for example, was substantially higher than the national utility average, even though the reported average was below the federal limit. [3]

Pentair reverse osmosis drinking water system installed by Artisan Plumbing in Southern Utah.

What Do Washington County Drinking Water Reports Show?

The 2025 reports from Washington City and Ivins provide a snapshot of several commonly discussed drinking water contaminants.

Arsenic

• Washington City: 1.3–3.8 ppb

• Ivins: 1.0–8.5 ppb, reported as running annual averages

• EPA limit: 10 ppb

Fluoride

• Washington City: 0.028–0.253 ppm

• Ivins: Not detected to 2.12 ppm

• EPA primary limit: 4 ppm

Total Dissolved Solids

• Washington City: 210–656 ppm

• Ivins: 118–936 ppm

• EPA secondary guideline: 500 ppm

Total Trihalomethanes

• Washington City: 5–48 ppb

• Ivins: 5.9–12.6 ppb

• EPA limit: 80 ppb

Sources: Municipal water quality reports and EPA standards. [1, 2, 5]

These results combine measurements from different water sources and sampling locations. They do not represent the exact water quality at every household faucet.

Arsenic: How Does Southern Utah Compare?

Arsenic occurs naturally in some groundwater. Several local supplies use treatment or blending to reduce concentrations before water reaches customers. [2]

EWG's historical data provides a national comparison for 2021–2023:

• St. George: 9.58 ppb

• Washington City: 2.02 ppb

• National utility average: 0.624 ppb

• EPA legal limit: 10 ppb

• EWG health guideline: 0.004 ppb

Sources: EWG and EPA. [3, 4, 5]

St. George's reported historical average was substantially higher than EWG's national utility average.

Why is EWG's guideline so much lower than EPA's limit?

EPA's enforceable standards consider health risks and treatment feasibility. EWG uses additional health-based benchmarks, including California's public health goal for arsenic.

Exceeding an EWG guideline does not automatically indicate a federal drinking water violation. [3, 5]

These comparisons reflect historical utility data, not current measurements at individual homes.

Dissolved Minerals and Hard Water

Southern Utah's mineral content is a familiar issue for homeowners.

Total dissolved solids (TDS) measure minerals, salts, and other dissolved material. Higher concentrations can affect taste and contribute to mineral deposits.

Washington City and Ivins both reported source measurements above EPA's 500 ppm secondary guideline. That guideline primarily addresses aesthetic concerns rather than a specific health risk. [1, 2, 5]

TDS alone does not indicate whether water is safe or unsafe.

Water hardness is a separate measurement associated primarily with calcium and magnesium. A water softener addresses hardness, while drinking water filtration can reduce additional dissolved substances.

Chlorine and Disinfection Byproducts

Chlorine is used to control harmful microorganisms in public drinking water.

Ivins reported chlorine concentrations of 0.1–0.4 ppm in 2025, below EPA's maximum residual disinfectant level of 4 ppm. [2, 5]

However, chlorine and other disinfectants can react with naturally occurring material in water, forming disinfection byproducts.

One group, total trihalomethanes (TTHMs), has an EPA limit of 80 ppb.

EWG's historical comparison shows:

• St. George average: 35.4 ppb

• National utility average: 29.1 ppb

• EWG health guideline: 0.15 ppb

These figures reflect 2021–2023 testing. [3]

Disinfection serves an important public health purpose. Some homeowners nevertheless choose additional filtration for the water they drink.

Is Fluoride Added to Southern Utah's Water?

Utah prohibited adding fluoride to public drinking water beginning May 7, 2025. [6]

Fluoride can still occur naturally in groundwater.

Ivins City confirms that it does not add fluoride. Its 2025 report includes source measurements reaching 2.12 ppm. [2]

EPA's primary fluoride limit is 4 ppm, while its secondary threshold is 2 ppm.

The city's reported maximum does not mean every home receives water at that concentration. [2, 5]

PFAS and Microplastics: What Do We Know?

PFAS, often called forever chemicals, are manufactured compounds found in various consumer and industrial products.

Ivins participated in EPA's national monitoring program in 2024. Its report states that none of the 29 PFAS compounds tested were detected. Lithium was detected at concentrations reaching 180 ppb. [2]

A nondetection means a substance was not detected above the applicable reporting threshold. It does not necessarily establish absolute zero.

Microplastics remain a testing gap.

We did not identify published quantitative microplastics measurements in the municipal reports examined.

EPA's 2023–2025 national monitoring program covered 29 PFAS compounds and lithium, not microplastics. [7]

The available reports therefore cannot establish whether microplastics are present or absent in local drinking water.

What Can Southern Utah Homeowners Do?

Municipal reports provide valuable information, but they cannot establish the exact contaminant concentrations at an individual household faucet.

Homeowners can identify their water supplier, review its latest testing results, and consider testing their own drinking water.

For those interested in additional filtration, a properly selected reverse osmosis system can reduce specific contaminants and dissolved substances. The reduction capabilities depend on the system's certification and performance. [8, 9]

Reverse osmosis can supply filtered water for drinking, cooking, refrigerator dispensers, and ice makers, depending on the system's capacity and plumbing configuration.

Understanding your water gives you the information needed to decide whether additional filtration makes sense for your home.

Sources and Research Methodology

This article was researched by Artisan Plumbing using municipal drinking water reports, EPA regulations, and EWG's Tap Water Database.

Municipal comparisons use verified 2025 testing from Washington City and Ivins. St. George's national comparisons use historical 2021–2023 data.

[1] Washington City — 2025 Annual Drinking Water Quality Report

https://washingtonutah.gov/publicworks/water/ccr/CCR2025.pdf

[2] Ivins City — 2025 Water Quality Report, published June 2026

https://ivinsutah.gov/reports-studies/

Select the 2026 Water Quality Report.

[3] Environmental Working Group — St. George City Water System

https://www.ewg.org/tapwater/system.php?pws=UTAH27015

[4] Environmental Working Group — Washington City Water System

https://www.ewg.org/tapwater/system.php?pws=UTAH27021

[5] U.S. EPA — Drinking Water Regulations and Contaminants

https://www.epa.gov/sdwa/drinking-water-regulations-and-contaminants

[6] Utah Department of Environmental Quality — Fluoride in Utah's Drinking Water

https://deq.utah.gov/drinking-water/fluoride-drinking-water

[7] U.S. EPA — Fifth Unregulated Contaminant Monitoring Rule

https://www.epa.gov/dwucmr/fifth-unregulated-contaminant-monitoring-rule

[8] NSF — Reverse Osmosis Drinking Water Treatment Systems

https://www.nsf.org/knowledge-library/nsf-ansi-58-reverse-osmosis-drinking-water-treatment-systems

[9] U.S. EPA — Point-of-Use Reverse Osmosis Systems

https://www.epa.gov/watersense/point-use-reverse-osmosis-systems

Research note: Results may reflect different water sources and sampling locations. This article does not establish contaminant concentrations at individual addresses. Unresolved Hurricane arsenic measurements and unverified newer St. George measurements have been excluded.

Last reviewed: September 2026.

Why We Created the Artisan Resource Library

Over the years, I have spent a lot of time answering questions. Some come from homeowners trying to understand what is happening in their house. Some come from other contractors working through an unusual project. Others come from apprentices or young people who are interested in the trades and want to learn.

I have spent a good portion of my life learning how things work. Some of that happened in college and technical school, but much of it has happened where it does for most people in construction: in the field, working alongside other people, solving problems and learning from experience.

That process never really ends. Construction changes. Codes change. Products and technology improve. Every project is a little different, and there will always be someone who knows something you don't. I think being good at a trade has as much to do with continuing to learn as it does with what you already know.

At some point, it made sense to create a place where we could share more of those conversations. That is what this Resource Library is intended to be.

I hate seeing people get taken advantage of simply because they don't understand plumbing or construction. You shouldn't have to know the trades to feel confident making decisions about your own property. Whether you are buying your first home, have owned one for decades or suddenly find yourself responsible for repairs you have never dealt with before, you should be able to understand the problem in front of you, the options available and what you are paying for.

There is a lot of information we encounter every day that is useful well beyond a single service call or project. Rather than keeping that information inside our own company or repeating the same conversations one on one, we want to make more of it available to anyone who can use it.

Always Learning

At Artisan Group, we place a lot of value on continuing education, but that extends beyond formal classes and code books. We are always paying attention to new tools, fittings, materials, suppliers, equipment and methods that could help us do better work.

Sometimes the improvement is simple. A better fitting or a more serviceable layout can make life easier for the person who has to work on that system ten years from now. Other changes are much larger. Hydrovac technology has given us another way to approach excavation around existing utilities and sensitive areas. Advances in tankless water heating and water treatment continue to create new options for homes and businesses. Better equipment and diagnostic tools can change how quickly and accurately we find a problem in the first place.

We don't believe newer automatically means better. We do believe in understanding what is available and being willing to change when there is a safer, more reliable or more effective way to do something.

That same mindset means learning from other people in the industry. Construction is too broad for any one person to know everything. We work with contractors, suppliers, manufacturers and tradespeople whose experience is different from ours, and some of the most useful knowledge in this business gets passed from one person to another.

The Next Generation

Education is also important inside our own company. I had people who took the time to teach me, and today I have the opportunity to do the same for apprentices and younger people entering the trades. I want them to see construction as a skilled profession with real opportunity, but also to understand the responsibility that comes with becoming good at it.

That means learning more than how to complete a task. It means understanding why something is done a certain way, knowing when to ask questions, caring about safety and considering the person who will own, use or eventually service the work you leave behind.

We believe the way we take care of our team ultimately affects the way our team takes care of everyone else. If we expect high standards in the field, our responsibility is to give our people the training, equipment, support and working environment that allow them to meet those standards. Building a good company and building good tradespeople are closely connected.

Our Community

Southern Utah is our home. It is where we are raising our family, building our business and developing relationships that extend well beyond an individual project.

The work puts us in people's lives under just about every circumstance. Sometimes we arrive when a home is flooding or an underground line has failed and someone needs help making sense of a stressful situation. Other times, we get to be part of something exciting: a new home, an upgrade someone has planned for years or an unusual project that gives us a genuinely difficult problem to solve.

The scale changes too. One day the right solution might involve a relatively simple plumbing repair. Another might require excavation, hydrovac equipment or several parts of our company working together on a complicated project. I enjoy the technical side of all of it, particularly the jobs that require us to think, adapt and solve something difficult.

But the longer I do this, the more I appreciate that the equipment and technical work are only part of it. This business has introduced us to homeowners, tradespeople, apprentices, suppliers, contractors and neighbors we might never have known otherwise. Those relationships matter to us, and we want to build Artisan in a way that reflects that.

That is also what I want this Resource Library to reflect. We will talk about plumbing, water, excavation, construction, new technology, maintenance and the trades. Some subjects will be basic homeowner questions. Others will get considerably more technical. When we find something interesting, learn something useful or come across a question worth answering, this gives us a place to share it.

We certainly don't know everything, and we don't intend to write as though we do. We are going to keep learning from the people around us, share what we know and hopefully make some of that information useful to somebody else.

Derek Vogel
Artisan Group