Lay erosion-control matting on a gentle canyon-floor bank

Bare soil on the Los Laureles Canyon floor washes downstream fast during Tijuana's rainy season, carrying sediment across the border into the Tijuana River Estuary. A biodegradable erosion mat pinned over a gentle, already-flattened bank section holds soil in place while new plantings establish roots. This work is limited to gentle, stable ground. Standard: UNEP watershed restoration guidance; SDG 15 (Life on Land) Proof: Photo of the pinned erosion mat on the gentle bank Method (UNEP watershed restoration guidance; SDG 15 (Life on Land)): 1. Confirm the bank section is gentle-grade and dry before starting. 2. Clear loose rocks and debris from the surface. 3. Roll out the erosion mat and pin it flush to the soil. 4. Overlap mat sections by a few inches to avoid gaps. 5. Photograph the pinned matting and record the install date. Done when: Photo of the pinned erosion mat on the gentle bank

Where

Gentle canyon-floor bank, Los Laureles Canyon, Tijuana, Baja California 22203

Pay

$260 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 of the pinned erosion mat on the gentle bank

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

Level

intermediate

Open until

2026-09-18

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.