Title 16 — BUILDING REGULATIONS\›Part 8 — Local Modifications to CHAPTER 5 - NONRESIDENTIAL MANDATORY MEASURES›Division 5.3 — WATER EFFICIENCY AND CONSERVATION
Palo Alto Municipal Code § 5.307 Cooling Tower Water Use
Palo Alto Municipal Code · 2026-10 edition · updated 2026-10-19 · Palo Alto
Cite as: Palo Alto Municipal Code § 5.307 · Text as of 2026-10-19
5.307.1. Cooling Tower Water Use in High-rise Residential or Non-Residential Buildings.¶
Cooling tower water use must meet the conditions as follows and as outlined in Palo Alto Municipal Code Section 16.08.100. Projects are required to perform a potable water analysis at the site to meet the maximum concentration of parameters noted in Table 5.307.1.
Table 5.307.1
| Ca (as CaCO3) | 600 ppm |
|---|---|
| Total alkalinity | 500 ppm |
| SiO2 | 150 ppm |
| Cr | 300 ppm |
| Conductivity | 3300 Us/cm |
Calculate maximum number of cycles that can be achieved with these levels of concentration shall be included in the plumbing design plans.
(Ord. 5678 § 2 (part), 2025)
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