Measure open water evaporation on Prairie Creek, Sugar Creek and the Wabash alluvial aquifer.

Evaporation is the biggest loss in a dry system and almost the only one nobody meters. On a named public open water surface near Lebanon, a canal reach, a reservoir shore, a pond or a public pool, take the month's evaporation two ways and print both: the published rate for the nearest station or reservoir from the agency that publishes it, and a direct reading from a pan or a marked float staff read at the same hour daily, corrected for rainfall. Then multiply by the surface area from public imagery and say, in gallons, what the month cost.

Where

public streets, creek crossings and city parks, Lebanon, Boone County, IN · Open the map

Pay

$75 proposed

This packet is not funded yet, so this figure is a proposed price and not money waiting in escrow. If a buyer funds it, approved proof settles that price onchain. If nobody funds it, approved proof earns provable credit toward the work instead of cash — recorded, and readable any time at vealth.net/labor/credit/(your wallet). You see which before you claim, never after.

Proof

published rate with its source, a daily direct reading series corrected for rainfall, the measured surface area with its method, and the monthly volume with both numbers side by side

This is exactly what gets it approved. Nothing settles without it.

Level

intermediate

Open until

2026-12-01

Posted by

0x034F…6c89

The creator wallet. Its signature is what approves proof and settles the wage.

How this work is done

A documented method, so this packet comes out the same whoever does it.

Bring

• an evaporation pan or a marked float staff, set on public ground with permission
• a ruler or hook gauge readable to a tenth of an inch, and a fixed time of day for reading
• the agency's published evaporation rate for the nearest station or reservoir
• public aerial imagery for the surface area measurement
• the local daily rainfall record from a named public source
• hand tools, stakes, mulch and regionally native shrubs and small trees for the shade rung, with an 811 locate before any digging

Steps

1. 1. Name the open water surface exactly: a canal reach with its district and mileposts, a reservoir with its operating agency, a pond with its park, or a public pool with its facility. Get written permission for anything placed on a bank.
2. 2. Find the agency's published evaporation rate for the nearest station or for the reservoir itself, and record the agency, the period and the units.
3. 3. Set the pan or the marked staff on public ground, record its GPS location, and read it at the SAME hour every day, writing the raw reading before any correction.
4. 4. Subtract the day's rainfall from a named public source, keep the raw and corrected columns side by side, and never discard a reading that looks wrong; annotate it instead.
5. 5. Measure the open water surface area from public imagery, record the imagery date and the method, and state the area as a measurement with its uncertainty rather than as a fact.
6. 6. Compute the month's evaporation in gallons twice, once from the published rate and once from the direct series, print both, and state the difference plainly without explaining it away.
7. 7. For a shade packet, confirm the district's written permission and the setback it requires, honor the 811 locate, plant the row set back from the water line at the agency's spacing, stake and mulch, and record the first year watering plan with a named steward and the water source that plan uses.

What counts as done

• The published evaporation rate used, the station or reservoir it is for, the agency that publishes it, and the period it covers
• The direct reading series: the pan or marked staff used, its location with GPS, the daily readings at a fixed hour, and the rainfall subtracted with its source
• The open water surface area measured from public imagery, with the method and the imagery date
• The month's evaporation in gallons computed both ways, printed side by side, with the difference stated and not explained away

Proof is measured against these, not judged by taste.