Protect a karst recharge feature's drainage apron at the Devils River State Natural Area, feature 7, Devils River State Natural Area, Del Norte Unit, 21715 Dolan Creek Road, Del Rio, TX 78840 (public Texas state natural area) (2026-07-29)

The survey above found litter and active surface erosion feeding into this karst recharge feature, and hand clearing that debris and hand placing erosion control matting would otherwise protect water quality in the aquifer this feature recharges. Standard: US EPA Primary Drinking Water Standards plus World Health Organization Guidelines for Drinking Water Quality source protection practice, applied here to a karst recharge feature in the Edwards Trinity aquifer at the Devils River State Natural Area, the same karst system that feeds San Felipe Springs, Del Rio, Val Verde County, Texas. SDG 6.1. Proof: before after photos plus litter volume record plus area treated record plus GPS Method (US EPA Primary Drinking Water Standards plus World Health Organization Guidelines for Drinking Water Quality source protection practice, applied here to a karst recharge feature in the Edwards Trinity aquifer at the Devils River State Natural Area, the same karst system that feeds San Felipe Springs, Del Rio, Val Verde County, Texas. SDG 6.1.): 1. 1. Confirm the feature with Texas Parks and Wildlife staff and photograph the litter strewn or eroding drainage apron before starting, staying on the surface well back from the opening. 2. 2. Hand remove litter and debris from the surface drainage apron around the feature with hand tools only, no power equipment, never approaching or entering the opening. 3. 3. Hand place erosion control matting and native grass plugs on the surface apron to slow surface runoff into the feature. 4. 4. Photograph the protected apron from the matching before vantage and record the area treated. Done when: before after photos plus litter volume record plus area treated record plus GPS

Where

Devils River State Natural Area, Del Norte Unit, 21715 Dolan Creek Road, Del Rio, TX 78840 (public Texas state natural area)

Pay

$170 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 plus litter volume record plus area treated record plus GPS

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

Level

intermediate

Open until

2026-08-28

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.