Swap the water-filter cartridge on schedule at an invited Toppenish home (2026-07-19)

A nitrate filter only protects a family while its cartridge is fresh. In the Lower Yakima Valley, homes that got filters often miss the change date because cartridges cost money and the date slips by. A quarterly swap round keeps installed filters actually working. Standard: Manufacturer cartridge-life specifications under EPA point-of-use filter guidance; SDG 6 (Clean Water and Sanitation). Proof: before/after cartridge photos plus the updated date card Method (Manufacturer cartridge-life specifications under EPA point-of-use filter guidance; SDG 6 (Clean Water and Sanitation).): 1. Confirm the host's invitation and check the date card on the installed filter. 2. Shut the supply valve and swap in the correct replacement cartridge per the manufacturer's instructions. 3. Flush the new cartridge for the required time and confirm clean flow. 4. Update the date card with today's date and the next change date. 5. Photograph the old cartridge, the new cartridge in place, and the updated date card, GPS-tagged and dated. Done when: before/after cartridge photos plus the updated date card

Where

Invited homes with installed filters, Toppenish, WA 98948

Pay

$160 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. You see which before you claim, never after.

Proof

before/after cartridge photos plus the updated date card

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

Level

entry

Open until

2026-10-19

How this work is done

A documented method, so this packet comes out the same whoever does it. Typically 30–60 minutes. Method of record: EPA drinking-water sampling (3Ts / LCR first-draw where lead is in scope)

Bring

• GPS-capable phone
• test kit for each named analyte (nitrate/coliform/arsenic/lead as specified)
• clean sample bottle + label
• nitrile gloves
• camera

Steps

1. 1. Navigate to the sampling point; confirm GPS is inside the posting radius; record the waypoint.
2. 2. Photograph the tap or wellhead with a legible timestamp.
3. 3. If first-draw is required, sample after >=6h stagnation; if flushed, run the tap 2-3 minutes first, then sample.
4. 4. Fill the bottle without touching the inside; cap immediately.
5. 5. Run each test per kit instructions; wait the exact develop/incubation time; read and record every value with units.
6. 6. Record coliform as present/absent after the stated incubation window.
7. 7. Enter all readings, units, GPS, time, and photos into the proof record; sign it.

If it does not match the plan

• Nitrate > 10 mg/L -> tag 'exceeds EPA MCL'; advise no infant consumption pending certified-lab confirmation.
• Total coliform present -> advise disinfection + retest; recommend lab confirmation.
• Arsenic > 10 ppb or Lead > 15 ppb -> tag exceedance; recommend certified-lab confirmation before any consumption guidance.

What counts as done

• GPS waypoint recorded inside the posting radius
• Timestamped photo of the exact sampling point
• Each required analyte recorded with a numeric value + units (or present/absent)
• Sampling type (first-draw vs flushed) explicitly noted

Proof is measured against these, not judged by taste.