Printable FE Environmental Lookup Map
FE Environmental Handbook 10.6 Page Guide
Environmental splits between water, air, and solid waste, and the handbook keeps those apart. Most lost time on this exam comes from searching the wrong one of the three. Each topic below is matched to the pages that hold its design relations.
FE Environmental pulls from three lanes at once — Environmental Engineering (pp. 324-366), Fluid Mechanics (pp. 187-214), and the water content inside Civil Engineering (pp. 271-323). The trap is searching only the Environmental section for hydraulics or open-channel relations that really live in Fluid Mechanics. Identify whether a problem is treatment, hydrology, or hydraulics before you open the handbook.
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On this page: topic weights, high-value handbook page ranges, search cues, pages worth memorizing, and a first-week lookup drill.
Topic Weight, Page Starts, and Quick Searches
Use this as one map: start with the official topic weight, jump to the broad handbook lane, then try the common PDF starts and quick-search terms. These are study shortcuts, not official NCEES weightings or guaranteed formula matches.
| NCEES FE Environmental Topic | Questions | Handbook 10.6 Pages to Start With | Common PDF Starts | Handbook Quick Search Terms | ROI |
|---|---|---|---|---|---|
| Mathematics | 5-8 | Mathematics pp. 42-69 | PDF pp. 44, 53, 55 | Calculus, Linear Algebra, Complex Numbers, Integral | Shared |
| Probability and Statistics | 4-6 | Probability and Statistics pp. 70-91 | PDF pp. 72, 73, 82 | Normal Distribution, Probability, Descriptive Statistics, Standard Deviation | Shared |
| Ethics and Professional Practice | 5-8 | Ethics and Professional Practice pp. 10-20 | PDF pp. 10, 11, 20 | Ethics, Public Safety, Intellectual Property, Conflicts of Interest | Shared |
| Engineering Economics | 5-8 | Engineering Economics pp. 241-248 | PDF pp. 241, 242, 243 | Time Value of Money, Depreciation, NPV, Net Present Value | Shared |
| Fundamental Principles | 7-11 | Environmental Engineering pp. 324-366; Chemistry and Biology pp. 92-100 | PDF pp. 333, 340, 345 | Fundamentals, CSTR, Detention Time, Mass Balance | High |
| Environmental Chemistry | 7-11 | Chemistry and Biology pp. 92-100; Environmental Engineering pp. 324-366 | PDF pp. 92, 93, 98 | Chemistry, Acid-Base Chemistry, Reaction Kinetics, Stoichiometry | High |
| Health Hazards and Risk Assessment | 4-6 | Safety pp. 21-41; Environmental Engineering pp. 324-366 | PDF pp. 27, 29, 35 | Risk Assessment, Risk Assessment Toxicology, Carcinogen, CDI | Medium |
| Fluid Mechanics and Hydraulics | 12-18 | Fluid Mechanics pp. 187-214; Civil Engineering pp. 271-323; Environmental Engineering pp. 324-366 | PDF pp. 191, 193, 195 | Open Channel, Diagram, Pumps, Reynolds Number | High |
| Thermodynamics | 3-5 | Thermodynamics pp. 149-186 | PDF pp. 153, 155, 156 | Energy Balance, Behavior of Ideal Gases, Energy Balances, First Law | Medium |
| Surface Water Resources and Hydrology | 9-14 | Civil Engineering pp. 271-323; Fluid Mechanics pp. 187-214; Environmental Engineering pp. 324-366 | PDF pp. 334, 339, 351 | Surface Water, Rational Method, Runoff, Hydrology | High |
| Groundwater, Soils, and Sediments | 8-12 | Environmental Engineering pp. 324-366; Civil Engineering pp. 271-323 | PDF pp. 336, 337, 351 | Groundwater, Confined Aquifer, Groundwater Flow, Darcy's Law | High |
| Water and Wastewater | 12-18 | Environmental Engineering pp. 324-366 | PDF pp. 344, 351, 358 | Water Treatment, Disinfection, Diagram, Activated Sludge | High |
| Air Quality and Control | 8-12 | Environmental Engineering pp. 324-366 | PDF pp. 324, 325, 331 | Air Quality, Gaussian Plume, Diagram, Criteria Pollutants and NAAQS | High |
| Solid and Hazardous Waste | 7-11 | Environmental Engineering pp. 324-366; Safety pp. 21-41 | PDF pp. 338, 339, 365 | Solid Waste, RCRA, Hazardous Waste, Landfill | High |
| Energy and Environment | 4-6 | Thermodynamics pp. 149-186; Environmental Engineering pp. 324-366; Engineering Economics pp. 241-248 | PDF pp. 360, 361, 362 | Energy, Power Plant, Thermal Efficiency, Greenhouse Gas | Medium |
Pages Worth Memorizing by Location
- Environmental Engineering pp. 324-366: the main FE Environmental lookup lane for water, wastewater, air, groundwater, waste, risk, and environmental chemistry.
- Fluid Mechanics pp. 187-214 and Civil Engineering pp. 271-323: use these with hydraulics, hydrology, open-channel flow, pumps, and groundwater setups.
- Chemistry and Biology pp. 92-100: useful for pH, equilibrium, stoichiometry, biology, and chemistry-heavy treatment questions.
- Ethics, Safety, and Economics: small page ranges that can turn into quick points if you know where they live.
Sections People Waste Time On
- Searching the whole PDF for broad words like "water" or "air" instead of using terms like "BOD," "Manning," "Darcy," or "Gaussian plume."
- Looking only in Environmental Engineering when the controlling flow relation lives in Fluid Mechanics or Civil Engineering.
- Starting calculator work before converting concentration, flow, detention time, and mass-rate units.
- Reading the handbook passively instead of solving with the handbook open and timing each lookup.
First-Week Lookup Drill
- Time yourself finding the water-treatment design relations. They carry more questions than any other Environmental block.
- Locate the air-dispersion relations twice: once from Air Quality, once by searching “plume”. Note which route is faster.
- Find the groundwater and Darcy relations. They sit under Water Resources rather than Geotechnical, which trips up candidates coming from Civil.
- Search with short terms from this guide, such as "Water Treatment", "Air Quality", "Groundwater", "Surface Water", "Calculus", "Chemistry". Search the medium rather than the process; “groundwater” lands faster than “transport”.
- For any problem that could be water, air, or waste, name the medium first. The three use different relations for questions that read almost identically.
How FE Test Prep Uses This Workflow
Our FE Environmental practice problems label the problem type, include quick formula references, and show the loading and dosage arithmetic step by step. Environmental rewards knowing which medium a question is about before you start searching. Water, air, and waste use different relations for problems that read similarly.
Turn Lookup Practice Into Questions
Start with 20 free FE Environmental questions or open the full app for topic drills, exam simulations, calculator walkthroughs, and analytics.
Sources: NCEES FE Environmental CBT Exam Specifications effective beginning July 2020, NCEES exam reference handbook guidance, and FE Test Prep's independent FE Handbook 10.6 navigation review updated 2026-05-23. This is an independent FE Test Prep study guide, not NCEES material. Use the official NCEES handbook assigned to your exam date during preparation and on exam day. If a page range looks off while you practice, use the app's Report Issue button or the Contact/Errata links below.