Install a certified under-sink water filter at an invited McFarland home

McFarland families who distrust the tap pay bottled-water prices on farm wages. A certified under-sink filter matched to the home's own test results gives the kitchen tap back to the family and cuts a standing monthly cost. This is the doing step the tap test points to. Standard: NSF/ANSI 53 certified point-of-use filtration; SDG 6 Clean Water and Sanitation. Proof: Photos of installed unit, running tap, dry fittings with GPS/date Method (NSF/ANSI 53 certified point-of-use filtration; SDG 6 Clean Water and Sanitation.): 1. Match an NSF/ANSI-certified under-sink filter to the home's recorded test results. 2. Shut the cold-supply valve, relieve pressure, and install the unit per the manufacturer's instructions. 3. Restore supply, flush the cartridge for the required time, and check all fittings for drips. 4. Write the cartridge model and next swap date where the host will see it. 5. Photograph the installed unit and running tap and record completion with GPS and date. Done when: Photos of installed unit, running tap, dry fittings with GPS/date

Where

Host-invited home near Browning Rd & Perkins Ave, McFarland, CA 93250

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. You see which before you claim, never after.

Proof

Photos of installed unit, running tap, dry fittings with GPS/date

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

Level

intermediate

Open until

2026-09-01

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.