Description
Supplied water billing/allocation credit arithmetic without inferring water quality or irrigation need.
A farm or garden budget depends on a common area, quantity, observation period, and system boundary. Recovery, exclusions, overlap, and allocation change how a share is calculated. Supplied accounting or geometry terms remain separate from measured crop performance and verified environmental outcomes.
Supplied water billing/allocation credit arithmetic without inferring water quality or irrigation need.
When to use this tool
Use Garden Water Credit Share when you need a clearly bounded area, material, resource, energy, or allocation term for supplied garden or farm records.
How to use the tool and how it works
- Enter grossUse, reusedWater, suppliedCreditFraction. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read creditedWater, netChargedUse. Use the output convention below.
Return creditedWater=reusedWater*suppliedCreditFraction and netChargedUse=grossUse-creditedWater. Require credit fraction within zero through one and reused water within nonnegative gross use.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| grossUse | Gross Use | Required. Finite number; minimum 0. |
| reusedWater | Reused Water | Required. Finite number; minimum 0. |
| suppliedCreditFraction | Supplied Credit Fraction | Required. Finite number; minimum 0; maximum 1. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| creditedWater | Credited Water | Required. Finite number. |
| netChargedUse | Net Charged Use | Required. Finite number. |
{
"input": {
"grossUse": 100,
"reusedWater": 40,
"suppliedCreditFraction": 0.5
},
"output": {
"creditedWater": 20,
"netChargedUse": 80
}
}Limitations and assumptions
- The credit fraction is a supplied accounting policy. This does not establish lawful water reuse, water quality, billing entitlement, or the true physical reduction in consumption.
- The field tables state structural bounds; the mechanics also specify cross-field constraints. Malformed inputs and unsupported domains cause errors. A successful false flag, empty branch value, or zero placeholder has the meaning stated above and is distinct from an input error.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Signed zero is exported as zero.
Alternative or Complementary methods
Verify the system boundary, units, and source records before combining this term into a resource or environmental report. Physical design and crop-performance questions require appropriate measurements and a broader model.
References
Similar or alternative tools
- Community Garden Water Bill Meter Share
Allocate bill*plotMeter/sum(allMeters)+fixedCharge/equalShares.
- City Garden Plant Spacing Edge Gap
Calculate usedLength=(plants-1)*spacing+2*endMargin and residual=bedLength-usedLength.