Bull Run water will not scale this boiler

Soft water does not mean a quiet boiler

You run a steam boiler in the Portland metro on Bull Run water, and the tubes are not behaving like a hard-water boiler from somewhere else. The 2025 Portland Water Bureau report says Bull Run hardness is typically 7 to 11 ppm, about half a hardness unit per gallon, while the groundwater supply is about 80 ppm^[1]. Carbonate scale is what hard water builds. At 7 to 11 ppm, a thick scale story is the wrong story. Oxygen pitting and a dosing plan copied from a hard well are the stories that fit the analysis.

• Confirm the supply. Bull Run and the Columbia South Shore groundwater are not the same water.
• The city’s pH treatment is for taps. It is not your boiler log.
• The operating permit and the inspection clock are still the vessel rules, softness aside.

Bull Run water is soft. Portland’s groundwater supply is moderately hard, about 80 ppm.

The rule, and the analysis that sits under it

OAR 918-225-0600 requires an operating permit or a temporary authorization before a nonexempt vessel is placed in operation. The owner keeps that permit current. If payment is still out 90 days after the billing date, the late penalty may be double the fee^[2]. OAR 918-225-0570 sets the minimum inspection at every year for power boilers and every two years for low-pressure steam boilers, inside and outside, when the construction allows an internal look^[3]. Most brewery kettles are low-pressure steam. Do not assume that until you read the nameplate. A vessel over the power-boiler line is on the yearly clock.

The water fact is municipal, and it is measured. The August 2025 supplemental report lists treated Bull Run hardness at 8.7 ppm on 12 August 2025, a 12-month range of 6.3 to 11 ppm, field pH 8.8, and total alkalinity 32 ppm as CaCO3. Calcium was 2.1 ppm^[4]. The same bureau’s test-results page has shown Bull Run hardness near 7 ppm and groundwater hardness near 68 ppm in a later snapshot, with alkalinity near 29 ppm on Bull Run and near 91 ppm on groundwater^[5]. Numbers move. The split between the two sources does not.

Portland adds sodium carbonate and carbon dioxide to Bull Run water, and sodium hydroxide to groundwater, to raise pH and limit lead at the tap^[1]. That is corrosion control for plumbing, published for drinking water. A boiler program still has to deal with dissolved oxygen, condensate contamination, and the cycles you actually run. If the log is missing, the callback is about the log, not about buying a hardness booster the city water does not need.

If you skip the water check

You treat the boiler as if it were on 80 ppm groundwater, or on a valley well, and you feed a scale program into water that has almost no calcium. The tubes do not grow the scale you were dosing for. They pit where oxygen stays, and the failure shows up as pits rather than as a cake you can chip. Skipping the permit is a separate miss: the vessel is not supposed to operate without it, and a fee left unpaid past 90 days can double. An inspector who cannot get to a vessel that was scheduled is a paid return trip at the hourly rate in ORS 480.605^[2].

Who signs, who pays, how long

Why Hood River does not inherit this page

Hood River fruit and cider plants, when they sell wholesale juice, are under an Oregon Department of Agriculture license and a 21 CFR 120 plan. The number that matters there is a pasteurization hold, such as the AFDO cider guideline of 160°F for 6 seconds for most apples. That sentence is false in a Portland brewhouse. A Portland kettle boils wort. It is not documenting a juice critical limit. Bend is false here for a different reason: the NOAA station elevation and the USDA boiling table, not 8.7 ppm hardness.

Checklist for this boiler

1. Ask which source filled the boiler: Bull Run, groundwater, or a blend, and the date.
2. Put the latest hardness, alkalinity, and pH next to the bureau sheet, not next to a generic “soft water” slogan.
3. Read the nameplate pressure and pick the yearly or two-year inspection clock.
4. Find the operating permit and the last internal inspection.
5. Read the treatment log for oxygen scavenger and condensate, not only for hardness.
6. Do not import a Bend NPSH trim or a Hood River hold time.

Fee and timeline

The published money is the permit schedule. Installation is $175 under ORS 480.595. Form 2502c adds 12 percent and prints $196 for a boiler, $140 for a pressure vessel, and $56 for a beverage-service tank over five cubic feet^[6]. Annual operating fees in the statute are maxima: $110 for power boilers and $55 for other boilers, across the horsepower bands the statute lists^[7]. There is no published statewide price for the diagnostic itself or for a treatment contract. Verify that number with the contractor. The inspection timeline is the yearly or two-year rule above, plus whatever date is already stamped on your permit.

Statewide context is on the rule.