Grade 12 Worksheet
Elderton Filtration Plant: Loading, Backwash, Detention
A grade 12 worksheet computing filter loading rates as a density, sedimentation-basin detention time, and a turbidity check for a fictional water treatment plant.
Water Math · Grade 12
Students practice grade-level mathematics on real utility quantities such as flow rates, tank volumes, and water bills, using the same formulas that appear on operator licensing exams.
67 materials written for this grade · refine by type, topic, or standard in the catalog
Grade 12 Math problem set
Fallowfield Water Utility: Revenue and an Inclining Block Rate
A grade 12 problem set on utility finance, covering a fictional utility's revenue need with a fixed charge and a three-tier inclining block rate.
Grade 12 Worksheet
Glenmarr Hydroelectric Station: Storage and Power Output
A grade 12 worksheet using unit analysis to convert reservoir storage and turbine flow and compute a fictional dam's power output.
Grade 12 Math problem set
Grayling Ford Filter Backwash: Rates, Volumes, and Tank Sizing
A grade 12 problem set on filter operations at a fictional plant: loading rates with a filter offline, backwash flow and volume, rise rate, and sizing a wash-water tank.
Grade 12 Lesson plan
Haleboro's Aging Mains: Replacement Rate and Backlog
A grade 12 lesson where students compute a water system pipe replacement rate, cycle, funding gap, and backlog, then link the results to an infrastructure grade.
Grade 12 Math problem set
Halloway Standpipe: Storage, Fire Flow, and Pressure
A grade 12 problem set sizing a fictional town's standpipe, converting elevation to service pressure, and checking whether stored water meets a two-hour fire-flow demand.
Grade 12 Quiz & test questions
Kelverton Well 3 PFAS Compliance: Averages and Precision
A grade 12 quiz on PFAS compliance math: the running annual average, comparison to the 4.0 ppt limit, blending, reporting precision, and the rule's compliance timeline.
Grade 12 Lesson plan
Kettleridge Reservoir Hydrograph: Reading a Drought Year
A grade 12 lesson where students read key features off a fictional reservoir's water-level graph and compute average rates of change across a drought and recovery.
Grade 12 Worksheet
Marchwood Softening Plant: Hardness, Alkalinity, and Lime Dose
A grade 12 operator-math worksheet on lime softening: hardness in grains and mg/L as CaCO3, removal efficiency, lime feed in pounds per day, and detention time.
Grade 12 Quiz & test questions
Marston Regional Water: Hydraulics and Distribution Test
A grade 12 unit test mixing multiple-choice, short-answer, and computation items on pressure, head, tank volume, and pipe flow for a fictional regional water system.
Grade 12 Lesson plan
Merristone Water Demand: Linear Versus Exponential Growth
A grade 12 math lesson where students build linear and exponential population models from two data points, project water demand, and test it against a plant's capacity.
Grade 12 Lesson plan
Norbourne Jar Test: Comparing Two Coagulants with Simulation
A 55-minute grade 12 lesson using a fictional plant's jar test to compare two coagulants, then a randomization simulation to judge whether the difference is real.
Grade 12 Worksheet
Northgate Business Park: Detention Basin and Pipe Flow
A grade 12 worksheet applying the rational method and the continuity equation to size a fictional business park's storm outlet pipe and detention basin.
Grade 12 Worksheet
Ospreyfield Digester Gas: Volatile Solids to Kilowatt-Hours
A grade 12 worksheet tracing a fictional plant's sludge from volatile solids destroyed to biogas, energy density in BTU per cubic foot, and generated electricity.
Grade 12 Math problem set
Ostwick Recovery Facility: Nutrient Loading and Phosphorus Recovery
A grade 12 problem set on nutrient loads at a recovery facility: nitrogen and phosphorus loading, removal efficiency, and phosphorus recovered as fertilizer.
Grade 12 Worksheet
Operator Unit Conversions at the Oswell Water Authority
A grade 12 math worksheet drilling the flow, volume, weight, and concentration conversions on operator-certification exams, all built around one fictional utility.
Grade 12 Project
Quarryhill Water Works: Non-Revenue Water Audit and Plan
A grade 12 four-session project where teams audit a fictional utility's water losses, value them, and propose a loss-reduction plan within a fixed budget.
Grade 12 Math problem set
Quillbeck Solvent Plume: Darcy Velocity and Travel Time
A grade 12 problem set applying Darcy's law to a fictional spill site, finding seepage velocity, sorption-slowed plume travel time to a well, and solvent mass flux.
Grade 12 Project
Ravelston Field Cistern: A Rainwater Harvesting Design Proposal
A four-session grade 12 project sizing a cistern for a fictional school field, using a budget inequality and cylinder geometry under height and footprint limits.
Grade 12 Worksheet
Ridgemoor Well Field: Drawdown, Specific Capacity, and Storage
A grade 12 worksheet on a fictional well field: drawdown, specific capacity, and density reasoning for water stored per square foot and per acre of aquifer.
Grade 12 Math problem set
Stonebriar Reservoir: Sediment Inflow and Lost Storage
A grade 12 problem set converting a fictional watershed's sediment yield into lost reservoir storage, then comparing linear and exponential models of capacity loss.
Grade 12 Worksheet
Sunmere Brackish RO Plant: Recovery, Rejection, and Energy Use
A grade 12 worksheet on a fictional brackish desalination plant, chaining flow, salt-balance, and energy calculations for a reverse osmosis system.
Grade 12 Worksheet
Talbrook Water Authority Staffing: Operator Hours and Payroll
A grade 12 worksheet on staffing a fictional plant around the clock: coverage hours, full-time equivalents, overtime versus a new hire, and cost per connection.
Grade 12 Worksheet
Thistledown GAC Contactors: PFAS Removal and Reporting Precision
A grade 12 worksheet on a fictional town's carbon filters, computing PFOA and PFOS removal efficiency and reporting results at the precision the lab method allows.