Clear the trash from Sand Creek's banks before it washes downstream (2026-07-19)

Sand Creek carries Commerce City's windblown and dumped trash into the South Platte with every storm pulse. A monthly bank cleanup along the public greenway stretch — bags, tires, foam — is direct load reduction for the whole downstream river system. Standard: South Platte urban waters stewardship practice; SDG 6 and SDG 15. Proof: Before/after photos + bag/bulk count Method (South Platte urban waters stewardship practice; SDG 6 and SDG 15.): 1. Work the public-access bank stretch collecting litter into bags, sorting recyclables. 2. Stage tires and bulk items at the agreed pickup point. 3. Keep to stable upper banks — never enter the water or steep cut banks. 4. Log bags and bulk items. 5. Photograph the stretch before and after with date and GPS. Done when: Before/after photos + bag/bulk count

Where

Public bank stretch, Sand Creek Greenway near Dahlia St access, Commerce City, CO 80022

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 photos + bag/bulk count

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

Level

entry

Open until

2026-08-19

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 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.