Survey the San Joaquin River floodplain buffer corridor near Grayson, the Grayson Community Services District corridor near Laird Street / River Road, Grayson, CA 95363

The riverbank corridor bordering this stretch of the San Joaquin River floodplain has thin or missing native vegetation in places, and no baseline exists naming where a buffer planting would do the most good for bank stability and flood-flow attenuation. Standard: US EPA Rapid Bioassessment Protocols + USDA NRCS Conservation Practice Standard (CPS) 391 Riparian Forest Buffer, applied to the San Joaquin River floodplain corridor around Grayson; SDG 6.3/6.6/15.1. Proof: photo transect + bank-condition tag by segment + GPS boundary + ranked follow-on list Method (EPA dry-weather / AMD field screening, ~30-60 min): 1. Navigate to the outfall/reach; record GPS; photograph it, capturing any visible flow or staining. 2. Note whether flow is present in dry weather (yes/no). 3. Measure and record pH, conductivity, and each specified analyte per kit instructions. 4. Log any color, odor, floc, or aquatic-life observation. 5. Enter all readings with units, GPS, time, and photos into the proof record; sign. Equipment: GPS phone, pH meter or strips, conductivity meter, ammonia + iron test kit as specified, surfactant screen if specified, gloves, camera Done when: pH + conductivity recorded with units; Each specified analyte recorded with a value; Dry-weather flow present? recorded yes/no; GPS waypoint + timestamped photo

Where

the Grayson Community Services District corridor near Laird Street / River Road, Grayson, CA 95363

Pay

$110 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

photo transect + bank-condition tag by segment + GPS boundary + ranked follow-on list

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

Level

intermediate

Open until

2026-09-07

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 dry-weather / AMD field screening

Bring

• GPS phone
• pH meter or strips
• conductivity meter
• ammonia + iron test kit as specified
• surfactant screen if specified
• gloves
• camera

Steps

1. 1. Navigate to the outfall/reach; record GPS; photograph it, capturing any visible flow or staining.
2. 2. Note whether flow is present in dry weather (yes/no).
3. 3. Measure and record pH, conductivity, and each specified analyte per kit instructions.
4. 4. Log any color, odor, floc, or aquatic-life observation.
5. 5. Enter all readings with units, GPS, time, and photos into the proof record; sign.

If it does not match the plan

• Dry-weather flow present with elevated conductivity/ammonia/surfactants -> flag suspected illicit discharge for the responsible agency.
• pH < 6 with visible iron floc -> tag suspected acid mine drainage; recommend metals lab panel.

What counts as done

• pH + conductivity recorded with units
• Each specified analyte recorded with a value
• Dry-weather flow present? recorded yes/no
• GPS waypoint + timestamped photo

Proof is measured against these, not judged by taste.