Install a certified nitrate-reducing under-sink filter at an invited Orosi-area home

Carbon pitchers do nothing for nitrate, so Cutler and Orosi families with bad readings need the right technology: a certified reverse-osmosis under-sink unit. Installed and flushed correctly, it gives an East Orosi kitchen its first trustworthy tap in years while system consolidation grinds forward. The wrong filter here is worse than none, because it buys false comfort. Standard: NSF/ANSI 58 reverse-osmosis certification for nitrate reduction; California SAFER interim-solution practice; SDG 6 Clean Water. Proof: Photos of installed RO unit, running tap, dry fittings, dated schedule with GPS/date Method (NSF/ANSI 58 reverse-osmosis certification for nitrate reduction; California SAFER interim-solution practice; SDG 6 Clean Water.): 1. Confirm the home's recorded nitrate result and bring an NSF/ANSI 58 certified reverse-osmosis unit. 2. Shut the cold supply, mount the unit and storage tank in the cabinet, and connect per the manufacturer's instructions. 3. Install the dedicated faucet only if a sink hole exists — no new counter drilling under this packet. 4. Flush and pressurize per spec, then check every fitting dry. 5. Explain the membrane and cartridge schedule to the host and write the dates on the unit. 6. Photograph the installed unit and running dedicated tap and record with GPS and date. Done when: Photos of installed RO unit, running tap, dry fittings, dated schedule with GPS/date

Where

Host-invited home near Avenue 416, Orosi, CA 93647

Pay

$420 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 RO unit, running tap, dry fittings, dated schedule with GPS/date

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

Level

intermediate

Open until

2026-09-02

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.