Water Resource Construction · Est. 4 Generations · West Palm Beach, FL

Florida's water security is built from the ground down.

Florida Design Drilling is a self-perform water infrastructure contractor. We design, drill, construct, test and rehabilitate the deep wells that supply, store and protect drinking water for millions of Floridians, and we build and upgrade the treatment plants they feed. From surficial supply wells to Class I injection wells 4,000 feet down, and from new design-build facilities to inside-the-fence plant work, one self-perform contractor carries it all.

4,000+ ftCompletion depths
Class IDeep injection well specialists
100+ yrsFamily drilling heritage
9 rigsPurpose-built, engineered in-house

Spud In · How to Read This Page

We think in layers. This page is built like a well log.

Beneath every Florida community sits a mile-deep column of sand, clay and limestone, and each layer does a different job for the people living above it. It's how we see the state, so it's how we organized this site: every section that follows is tagged with the formation and depth where that work happens, from the surficial sands to the Boulder Zone.

Surficial · 0–200 ft · Why This Work Matters

Florida's water challenges run deep. So do we.

The American Society of Civil Engineers estimates $625 billion is needed to repair the nation's drinking water infrastructure. Nowhere is the pressure greater than Florida, where record growth, aging wellfields and tightening water-quality standards are converging at once. For the utilities and communities facing that pressure, we build the deep infrastructure that solves it.

RenewalAging infrastructure

Wellfields built decades ago are reaching end of life

Legacy wells, at-risk plants and buried infrastructure across Florida need replacement, rehabilitation or retirement. We help utilities get the most out of the assets they have: restoring well capacity, proving mechanical integrity, and upgrading and rehabilitating treatment plants from inside the fence, on programs often supported by WIFIA and State Revolving Fund dollars.

GrowthSupply & resilience

A growing Florida needs new sources of water

A thousand new residents a day, plus water-intensive industry, means traditional wellfields alone can't keep up. Utilities are turning to alternative water supply: brackish wellfields feeding desalination plants, aquifer storage & recovery, and reclaimed-water systems. Building those assets is what we do every day.

ProtectionWater quality

Cleaner water standards require deeper solutions

New water-quality rules, including PFAS limits, are pushing utilities toward advanced treatment like reverse osmosis. Those plants produce concentrate that has to go somewhere safe, and in Florida that means the Class I deep injection well: engineered, permitted under FAC 62-528, and completed thousands of feet below the deepest drinking water source. Few contractors are qualified to build them. We are.

SOURCE: ASCE INFRASTRUCTURE REPORT CARD

Spotlight · Everglades Restoration

America's Everglades will be restored one well at a time.

The Comprehensive Everglades Restoration Plan is the largest ecosystem restoration effort ever undertaken, and one of its cornerstone technologies is the aquifer storage & recovery well. Under the Lake Okeechobee Watershed Restoration Project, dozens of ASR wells will bank wet-season water deep in the aquifer instead of releasing it to the coasts, protecting the St. Lucie and Caloosahatchee estuaries and holding that water in reserve for dry years.

55+ASR wells planned in the LOWRP program
~1B galBankable per well, per year, at ~5 MGD
~1 ftOf Lake Okeechobee storable underground per year
$150M+State funding already committed

This is generational work: a statewide buildout of exactly the wells we specialize in, large-diameter ASR and recharge wells into the Upper Floridan aquifer, exploratory and monitor wells, cycle testing and the hydrogeologic data programs that prove each site. Restoring the Everglades is, at its core, a drilling program. Florida Drilling builds this class of well for water managers and utilities across the state.

Upper Floridan · 900–1,400 ft · Capabilities

Self-perform, full lifecycle,
from the Boulder Zone to inside the fence.

SVC-01

Class I Deep Injection Wells

Turnkey construction of municipal and industrial Class I wells to 4,000+ ft under FAC 62-528: the disposal backbone for RO concentrate, reclaimed water and PFAS treatment residuals.

SVC-02

Aquifer Storage & Recovery

ASR wells that bank seasonal water underground, from utility drought reserves to the Everglades restoration programs reshaping how Florida stores water at basin scale.

SVC-03

Public Supply Wellfields

Deep and surficial potable supply wells, brackish Floridan wellfields for RO plants, and complete wellhead facilities, delivered bid-build or as full design-build wellfield programs.

SVC-04

Well Rehabilitation & Renewal

Mechanical integrity testing, casing repair, redevelopment and rehabilitation programs that restore capacity and extend asset life on wells already in service.

SVC-05

Treatment Plant Design-Build

Design-build delivery of water and wastewater treatment facilities, pairing wellfield expertise with vertical plant construction so one contractor carries the project from source to finished water.

SVC-06

Inside-the-Fence Plant Services

Upgrades, expansions and rehabilitation inside operating treatment plants: pumps, process piping, structures and equipment replacement, executed around live operations without interrupting treatment.

SVC-07

Testing, Inspection & Compliance

Aquifer performance testing, single- and dual-packer testing, coring, geophysical logging coordination and MIT: the regulatory evidence utilities need, delivered in-house.

SVC-08

Water Facilities & Utilities

Pump stations, wellhead equipment, above- and below-ground piping, chlorination and disinfection: the general contracting that ties the wellfield into the plant.

Ground Level · 0 ft · Inside the Fence

Every plant, at every stage of its life.

Treatment plants don't get built once and forgotten. They're repaired, upgraded, expanded and eventually replaced. We work across that entire arc as a self-perform contractor inside operating facilities: mechanical, process piping, structures and equipment, executed around live treatment that can never stop running.

01

Rehabilitate

Pump and equipment replacement, process piping, structural repairs and refurbishment on operating plants, keeping aging facilities reliable without interrupting service.

02

Upgrade

Process and compliance upgrades that bring plants to current standards: new treatment trains, electrical and controls, and the retrofits tightening regulations demand.

03

Expand

Capacity additions for growing service areas: new basins, trains, high-service pumping and storage, tied into live plants with careful sequencing and shutdown planning.

04

Design-Build New

Full design-build delivery of new water and wastewater treatment facilities, with single-point responsibility from process design through startup and commissioning.

Building now: two design-build plants for the Village of Indiantown, a full replacement of its 60-year-old WWTP and a new brackish RO WTP fed by wells we're drilling ourselves, plus the design-build Floridan wellfield and injection wells serving Port St. Lucie's new 10 MGD Rangeline RO facility. Design-build delivery on both sides of the fence.

2 DB Plants + 1 DB Wellfield · One Company · In Construction
Aerial view of the cleared Village of Indiantown RO water treatment plant site with equipment mobilizedIndiantown RO WTP · Site work underway

USDW Base · ~1,800 ft · The Fleet

Nine rigs.
Engineered in-house.

Nine rigs, designed, built and maintained in-house and purpose-engineered for Florida's geology and Florida's neighborhoods. The heart of the fleet is all-electric: quiet enough for urban and residential sites, transportable on legal-weight loads, with on-site water management that keeps every project compliant with DEP discharge requirements. The result is a fleet that drills the state's deepest wells from some of its tightest sites. That capability can't be rented.

Confining Unit · Built Like an Institution

What engineers, owners and partners check first.

Workforce depth

Experienced deep-well crews don't scale on demand. Ours are developed in-house across generations, with rig-specific training and a leadership bench that has run this work for decades.

Safety culture

Engineered well-site setups, self-contained crew facilities and documented operating procedures on every project. Safety is a design input, not a compliance afterthought.

Funding-backed backlog

Our backlog is anchored by municipal utilities executing WIFIA-, SRF- and rate-funded capital programs: mandated work with dedicated dollars behind it.

Bonding & financial strength

Bonding capacity to run multiple large, complex projects concurrently, with professionalized accounting and project controls on a modern construction ERP.

Regulatory fluency

Deep working knowledge of FAC 62-528, UIC permitting, FDEP coordination and the testing regimes that keep projects moving through approval.

Self-perform advantage

Rigs, fabrication facilities, testing capability and crews under one roof: schedule certainty and quality control that subcontracted models can't match.

Lower Floridan · Selected Work

Representative projects.

10+Class I injection wells completed
4,000+ ftDeepest completions
26"Largest final casing set
FL + SE U.S.Licensed across the Southeast
Design-Build Wellfield · City of Port St. Lucie

Rangeline WTP Floridan Wellfield

Design-build of the source and disposal backbone for the City's new 10 MGD Rangeline reverse osmosis facility: six Floridan aquifer supply wells, two injection wells and a monitor well. These are the wells that make an ~$80M plant possible in one of America's fastest-growing cities.

Design-Build WWTP · Village of Indiantown

Wastewater Treatment Plant Replacement

Design-build replacement of a treatment plant that served the Village for more than 60 years without major upgrade. The new facility is built for 7,000+ residents and the growth ahead, targeted operational in 2027.

RO WTP + Wellfield · Village of Indiantown

Reverse Osmosis Water Treatment Plant

New RO water treatment plant treating brackish Floridan aquifer supply, with the deep wells that feed it drilled by the same contractor. Wellfield to finished water, one team.

Class I DIW · Martin County

Deep Injection Well, 3,300 ft

Pilot hole, casing program and dual-zone monitor well for a Class I injection system supporting regional water management and reuse.

Provenance · McVille, N.D. to West Palm Beach, FL

The trade is the inheritance.

Before Florida Drilling, there was Ringdahl Well Drilling of McVille, North Dakota: Carl Ringdahl, a cable-tool rig, and a phone number that was just "31." The boys in the bandanas grew up on the rig floor. Their sons and grandsons still run the company. They just drill a mile deeper now.

Early Ringdahl drilling rig with driller in overalls and a child watching, North DakotaThe early years · McVille, N.D.
Ringdahl Well Drilling truck-mounted rig, July 1956July 1956 · Ringdahl Well Drilling
Carl Ringdahl with two grandsons in front of his Bucyrus-Erie water well rig, 19681968 · The next generation in overalls
Noah and Dan Ringdahl with the crew on the rig floor todayToday · 3rd & 4th generation

The rigs went from Bucyrus-Erie spudders to all-electric masts we engineer ourselves, and the wells went from farmstead water to 4,000-foot Class I completions. What didn't change is who's running them.

Leadership

Four generations of drillers.
One institutional-grade team.

Dan RingdahlChief Executive Officer

Third-generation drilling contractor and co-owner, setting company strategy and leading major programs and client relationships across the Southeast.

Noah RingdahlPresident

Fourth-generation drilling contractor. B.S. Mechanical Engineering, UCF; formerly process mechanical engineer at CH2M Hill. Vice President of the Florida Ground Water Association.

Stephen LevyChief Operating Officer

Leads company-wide operations, project delivery and organizational performance across all divisions.

Mike BlackSenior Vice President

Geologist. Oversees well construction and plant programs from hydrogeologic planning and permitting through completion, working directly with clients’ engineers.

Let's build something deep.

Now hiring drillers, derrickhands, operators, welders and mechanics statewide. Learn a trade that can't be automated, on some of the most advanced drilling rigs in the Southeast.

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Florida Drilling crew on an operating rig site