August 11, 2026
This week’s photo is courtesy of Mount Sopris Instruments- Denver, CO, USA
Safety Focus
Part 2 of 4: Extension Cords and Power Tools- Recognize
Today we will discuss how to properly inspect and identify problems with extension cords and electrical power tools.
OSHA is specific about doing a daily inspection. Every cord set, attachment cap, plug, and receptacle of cord sets, plus any equipment connected by cord and plug, gets visually inspected before each day's use for external defects such as deformed or missing pins or insulation damage, and for indications of possible internal damage. Anything found damaged or defective does not go used until it is repaired.
Start at the plug. A missing ground pin is the classic, and it is usually missing because somebody snapped it off to fit a two-slot receptacle. Bent or deformed blades, a loose cap, scorching or melted plastic around the blades: all of it fails.
Work down the cord. Look for cuts and abrasion through the jacket, cracked or brittle insulation, flat spots and crush marks where a truck or a load drove across it, and any place the jacket has pulled back from the plug. On this point 1926.416(e)(1) is very clear: worn or frayed electric cords or cables shall not be used. The same section bans fastening extension cords with staples, hanging them from nails, or suspending them by wire.
Then check the thing most crews walk right past, the rating printed on the jacket. OSHA's construction standard requires flexible cords rated for hard or extra-hard usage, and that rating is durably marked along the cord at intervals no greater than 24 inches. S, ST, SO, and STO are hard service designations. A cord with no legible marking cannot be shown to meet the requirement, which makes it a problem before anyone looks at the copper.
Finish at the tool. Cracked housings, missing guards, a trigger that sticks, and the strain relief where the cord enters the body. That last one matters more than it looks. Flexible cord is finely stranded for flexibility, so pulling on it can work strands loose from under a terminal screw until they reach the next conductor.
Sources:
Industry Update
USDA Money for Household Wells is Open Until September 30th
There is federal money on the table right now for the exact work most domestic well contractors do every week, and the window closes September 30th.
USDA Rural Development is accepting applications for its Rural Decentralized Water Systems Grant Program through September 30, 2026. The structure is worth understanding, because the money does not flow to homeowners or contractors directly. USDA awards grants to qualified private nonprofits, including tribally owned nonprofits, which then create a revolving loan fund or issue sub-grants to individual homeowners.
What those funds pay for is the useful part: constructing, refurbishing, and servicing individually owned household water wells and decentralized wastewater systems. Loans to homeowners carry a one percent fixed interest rate, terms up to 20 years, and a maximum of 15,000 dollars per household. Eligible areas are generally rural communities of 50,000 or fewer, plus tribal lands and colonias.
Why it matters: a rural customer who cannot finance a replacement well or a pump job is a job that does not happen. Where a nonprofit in your service area runs one of these revolving funds, that same customer can suddenly pay for the work.
The practical move is not to apply yourself, since contractors are not eligible applicants. It is to find the nonprofits already working rural housing or community development in your area, make sure they know the September 30 deadline exists, and be the contractor they call once the fund is running.
If you do end up working on one of these projects, be sure to check the American Iron and Steel requirements.
Sources:
• USDA Rural Development: Rural Decentralized Water Systems Grant Program
Knowledge Share
Part 2 of 4: Bentonite- How it Works
Today we are going to discuss what the sodium actually does when the bentonite contacts the water.
Montmorillonite is a layered mineral. Picture a stack of extremely thin plates with an exchangeable cation (a positively charged ion) sitting between each pair: sodium in Wyoming bentonite, calcium in most of the rest of the world. Water is attracted to those cations. It moves into the space between the plates, hydrates the cation, and forces the plates apart. That is what swelling actually is. Not a grain soaking up water like a sponge, but the stack itself prying open from the inside.
Researchers describe it in two stages. Crystalline swelling comes first, as water molecules build up in discrete layers around the cations through electrostatic attraction. Osmotic swelling follows, as the cation concentration between the plates draws in more water to balance itself, and that stage produces the large volume change. Sodium drives both harder than calcium does. Interlayer swelling in sodium bentonite can reach roughly twice that of calcium bentonite, which is precisely why Wyoming material became the standard.
That swelling provides three important characteristics that are paramount in water well drilling-
• Viscosity- so the fluid carries cuttings up the annulus instead of letting them settle out. This is especially important in direct/conventional mud drilling.
• Gel strength- the property that lets the mud stiffen when circulation stops and hold cuttings in suspension rather than dropping the whole load on the bit while you make a connection.
• Filter cake- the thin low-permeability skin the plates build against the borehole wall as fluid presses toward a permeable formation. That skin is what holds an unconsolidated hole open and keeps you from bleeding fluid into the formation.
What this means for your operation: All three of those benefits come from one event, sodium pulling water in between the plates. Anything in your make-up water that interferes with that exchange takes all three away at once. We will dig deeper into that subject in Part 3.
Sources:
• Journal of King Saud University, Engineering Sciences: Improving Local Bentonite Performance for Drilling Fluids Applications
• Industrial and Engineering Chemistry Research: Assessment of KCl Inhibition Efficiency in Water-Based Drilling Fluids
Industry Events
The Water Expo 2026
August 12 to 13, 2026 · Fort Lauderdale, FL
Information and Registration: The Water Expo 2026
AGWT: Mid-Atlantic and the Carolinas Groundwater Conference
August 18 to 19, 2026 · Richmond, VA
Information and Registration: AGWT Mid-Atlantic and the Carolinas Groundwater Conference
AWWA: Water Infrastructure Conference and Exposition
August 30 to September 2, 2026 · Indianapolis, IN
Information and Registration: AWWA Water Infrastructure Conference
IAH: 53rd World Groundwater Congress
September 14 to 18, 2026 · Budapest, Hungary
Information and Registration: IAH 2026 World Groundwater Congress
NGWA: Groundwater Week 2026
December 8 to 10, 2026 · Las Vegas, NV
Information and Registration: NGWA Groundwater Week 2026
If you have a conference, symposium, workshop, or water well related event that you would like mentioned, contact us at [email protected]
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