Environmental Water & Wastewater
For more than 20 years, the team behind RP Constructors and Civil Engineers & Constructors (CEC) has designed and built water and wastewater systems for cities, rural water systems, and industry. Wells, treatment plants, pipelines, pump stations, tanks — engineered and built by the same people.
Engineer and builder. Same room, same phone number.
CEC’s licensed professional engineers do the reports, the process design, the permitting, and the drawings. RP’s crews build it and self-perform the civil, mechanical, and process piping. No handoff, no finger-pointing between the engineer’s office and the contractor’s trailer, and no six-month gap between the study and the shovel. When the state reviewer has a question, the person who designed it and the person building it are on the same call.
What We Engineer and Build
Engineering & Permitting
- Preliminary engineering reports, basis of design, and alternatives analysis
- Source water characterization, bench testing, and pilot testing
- State construction permits, water allocation permits, and SRF documentation
- Design-build, construction manager at risk, design-bid-build, and emergency response
Source & Wells
- Well siting, test wells, and aquifer testing
- Well houses, pitless units, and raw water collection mains
- Well rehabilitation and replacement
Water Treatment
- Iron and manganese removal — aeration, chemical oxidation, detention, pressure and gravity filtration
- Softening, disinfection, and corrosion control
- Reverse osmosis and membrane systems for process water
- Expansions, rehabs, and equipment replacement inside operating plants
Conveyance & Pumping
- Transmission and distribution mains
- Booster stations, pressure zones, and pressure-reducing stations
- River, rail, and highway crossings
Storage
- Ground storage tanks, clearwells, and standpipes
- Elevated tank foundations and site work
- Tank and foundation rehabilitation, including settlement repair
Wastewater Treatment & Industrial Pretreatment
- Wastewater treatment plant construction and upgrades
- Industrial pretreatment systems for food processing and rendering
- Lagoon construction, repair, and closure
Pump Stations & Force Mains
- Lift stations and booster stations
- High-pressure force main installation
- Station rehabilitation and upgrades
Sewer Cleaning, Televising & Condition Assessment
- Hydro-jet cleaning of sanitary and storm sewers, force mains, and lift station wet wells
- CCTV inspection coded to NASSCO PACP standards, so the data plugs straight into your asset management and capital plan
- Condition assessment reports with defect ratings and prioritized repair recommendations
Stormwater Management & Drainage
- Storm sewer systems and detention basins
- Erosion control and flood mitigation
- Green infrastructure and water quality improvements
Bypass Pumping & Pipeline Rehabilitation
- Temporary bypass systems
- Trenchless pipe rehabilitation and lining
- Manhole and sewer structure rehabilitation
Two Kinds of Clients. Two Kinds of Jobs.
Municipal
Public water supplies and treatment plants for cities, rural water systems, and sanitary districts. We know what the state reviewer will ask for, how the SRF process runs, and how to explain a $12 million plant to a council that has to vote on it.
Industrial
Process water and pretreatment for food processing, rendering, and data centers. Different job: the spec is boiler feed, cooling, or food-contact water, and the objective is uptime and cost of ownership, not just a permit. Most of our industrial work is design-build inside operating plants — tie-ins scheduled around production, no surprises on the plant floor.
Water Problems We Solve
Iron and manganese in the well water, stained laundry and fixtures, complaints at city hall. We characterize the source, pilot the treatment, and build the plant — aeration, oxidation, detention, filtration — sized for winter, when the chemistry is slowest.
Lime softening or ion exchange, chosen on operating cost and residuals disposal, not on what is easiest to draw.
Expansion, a new treatment train, or a second source — evaluated on lifecycle cost, then built while the existing plant stays in service.
Filters, aerators, chemical feed, controls, and electrical replaced in a sequence that keeps water in the tank the whole time.
Test wells, aquifer testing, and a new well field — with the water allocation permit started early, not last.
New ground storage, clearwell, or standpipe. Foundation and settlement repair on the one you already have.
Boiler feed, cooling, or food-contact water from an onsite well or a city connection — treated to the spec the process needs, at a cost the plant can carry.
Compliance deadlines for lead and copper, PFAS, radionuclides, or disinfection byproducts. We tell you what actually has to change, what it costs, and what can wait.
Water treatment piping and process equipment.
How We Deliver
One contract, one team, one schedule. Our most common delivery model for water and industrial work.
We join early, price the job as it is designed, and hold the number.
CEC designs it and you bid it — or RP bids the work another engineer designed.
Not ready to build? Start with a preliminary engineering report or a pilot test and get a real number before you commit.
Force main breaks, plant failures, flood damage. We mobilize, bypass, and repair.
“I’ve used RP Constructors on multiple occasions and their work is top notch. It makes my life working for a general contractor a lot easier when I’m able to team up with a sub-contractor that I know I can trust and RP Constructors definitely fits that bill.”
– Ryan Bolinger, W.A. Klinger
In 2017, RP Constructors won a bid to build a pretreatment facility for Prestage Foods of Iowa. The $12 million project had a timeline of 12-18 months.
Our team installed a high-capacity industrial wastewater system designed to handle large-scale operations while ensuring compliance with stringent environmental regulations.
The job called for tight engineering and clean execution — force mains, lift stations, and the rest of the pretreatment system — and our crews self-performed it. Prestage got a system that keeps the plant running and keeps the downstream water clean.
Source to storage. One team.
Brown water, a plant at capacity, a letter from the state — call us. The engineer who takes the call is the one who’ll build it.