PE Civil Water Resources & Environmental

Where points go — The biggest block, and the least water-shaped: earthwork and cut-and-fill, layout, erosion and sediment control, protecting adjacent structures, excavation and work-zone safety, horizontal and vertical curves, retaining walls and construction methods. Wide rather than deep — the risk is the item you never studied, not the hard one.

Your reps — Sitework problems set in the same utility, DOT and developer projects as the water items — trench safety beside a sewer, dewatering beside a warehouse, a curve on a plant access road — so the non-water content arrives the way the exam frames it.

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Where points go — Rainfall to runoff: storm frequency and IDF curves, rational and NRCS methods, time of concentration, unit and synthetic hydrographs, losses, and detention and other stormwater controls. Method choice and time of concentration are where a correct calculation turns into a wrong answer.

Your reps — Ask the tutor why this runoff method and not the other — method choice is the decision the exam is really testing, and it's where the arithmetic goes wrong first.

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Where points go — Energy and continuity, friction by Hazen-Williams or Darcy-Weisbach, minor losses, pumps and system curves, wet wells, cavitation, and pipes in series, parallel and loops.

Your reps — Problems built around real pump stations, force mains and distribution loops, and a tutor you can ask to walk the energy line so you see where each loss enters.

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Where points go — Uniform flow, specific energy and critical depth, sub- and supercritical flow, hydraulic jumps and energy dissipation at culvert outlets and drops, and storm drainage from gutters and inlets to storm sewers.

Your reps — Culverts, drop structures, gutters and storm sewers drawn as exhibits — including plan-reading items where you pick the element on the drawing, not just compute a number.

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Where points go — Collection systems and lift stations, then the full treatment train: preliminary, primary, secondary and activated sludge, nutrient removal, solids handling, disinfection and advanced treatment.

Your reps — Treatment-train problems from bar screens to biosolids hauling, with process schematics you read the way the exam presents them.

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Where points go — The balances everything else rests on: mass balances, hydraulic and solids loading rates, and flow measurement. Short to state, easy to set up wrong — a sign or a units slip here propagates.

Your reps — Mass-balance and loading problems across treatment, reservoirs and industrial discharges, where you can ask the tutor to check your control volume, not just your number.

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Where points go — Demand and storage, distribution, then treatment: sedimentation, coagulation and flocculation, filtration and membranes, disinfection and by-products, hardness and softening, and other targeted removal.

Your reps — Treatment and distribution problems drawn from utilities of different sizes — softening chemistry, sedimentation basins, disinfection — plus schematic items for the treatment train.

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Where points go — Oxygen sag and stream recovery, TMDLs and load allocation, and biological and chemical contaminants in surface water and groundwater.

Your reps — Receiving-water problems that start from a real discharge — an effluent, a lagoon, a storm-drain outfall — and ask what the stream does next.

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Where points go — Quantity take-offs, cost estimates, schedules and critical paths, and comparing alternatives on present worth and lifecycle cost. Most candidates have met engineering economics before; network scheduling (float, crashing, precedence relationships) is the part worth drilling on its own.

Your reps — Take-off, estimating, scheduling and economic-comparison problems set on water projects, so planning practice doesn't feel like a detour.

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Where points go — Soil classification from boring logs and test data, soil properties and phase relationships, concrete, piping materials, and test methods and specification conformance.

Your reps — Boring-log and lab-data problems that ask you to classify and decide, not only to compute.

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Where points go — Aquifer properties, groundwater flow, and well and drawdown analysis, including pumping tests.

Your reps — Well, pumping-test and dewatering problems — including hydrogeologic sections you read to answer.

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Where points go — Lateral earth pressure, consolidation and compaction, bearing capacity, settlement and slope stability — a few questions, each drawing on a geotechnical method water engineers may not use daily.

Your reps — Earth-pressure, consolidation, bearing and slope problems on the structures a water project actually builds — tank foundations, pump-station walls, embankment dams.

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