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Utility Service Providers Cable. Comcast Cable TV; 800-945-2288; www.xfinity.com. Gas/Electric. ... City Of Orinda 22 Orinda Way Orinda, CA 94563 Phone: 925-253-4220.
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Orinda City Offices will be closed from Friday, December 23...
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A 5 phase approach has been developed to fund the repair and...
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City Of Orinda 22 Orinda Way Orinda, CA 94563 Phone:...
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City Of Orinda 22 Orinda Way Orinda, CA 94563 Phone: 925-253-4220. Email Us More contact info > Quick Links. Government. Departments. Residents & Visitors. How Do I ...
Code of OrdinancesSupplement 21Online content updated on December 21, 2022. ORINDA MUNICIPAL CODE Codified through Ordinance No. 22-03, passed September 6, 2022. (Supp. No. 21) This Code of Ordinances and/or any other documents that appear on this site may not reflect the most current legislation adopted by the Municipality.
- Aeration
- Coagulation
- Flocculation
- Sedimentation
- Filtration
- Disinfection
- Ozonation
- Fluoridation
- Corrosion Control
Water entering the plant is sprayed into the air through nozzles, producing a fountain-like effect. Breaking the water into small drops adds oxygen and releases trapped gases that can cause objectionable tastes and odors.
EBMUD adds coagulants to the water, allowing very small particles to stick together, forming larger particles. These larger particles are removed in subsequent steps.
After coagulants are added, the water is gently mixed to cause the small particles to combine and grow large enough to settle by gravity.
The water flows into sedimentation basins where the particles settle to the bottom. This step removes most of the suspended matter in the water by gravity. Water for the next step (filtration) is collected from the top of the sedimentation basins.
Any remaining particles are trapped and removed during filtration. The almost clear water from the sedimentation basins flows into deep, concrete-walled boxes. At the bottom are filter beds made up of layers of anthracite and sand. Particles are trapped in these layers as the now-clean water flows down through the filters.
Chlorine is added to kill pathogens such as bacteria and viruses. Chlorine also improves the performance of the filters. Precisely controlled amounts of chlorine are added. Prior to leaving the treatment plant, ammonia is added to the chlorine to form chloramine, a more stable disinfectant, that lasts longer in the distribution system.
At Sobrante and Upper San Leandro water treatment plants, ozone is used for disinfection and control of taste and odor causing compounds.
Before the water leaves the plant, a small amount of fluoride is added to the water to promote dental health.
EBMUD adds calcium hydroxide (lime) and sodium hydroxide (caustic) to the water to control corrosion. Using lime and caustic helps to achieve a slightly alkaline chemical balance, preventing the water from corroding distribution pipes and consumers' plumbing. This keeps substances like lead, copper, and iron from leaching out of plumbing fixtures a...
2020 Survey Results. An online survey was conducted in May 2020 to obtain the public’s feedback on downtown Orinda. A series of 13 open-ended, rating scale, and demographic questions were asked in the survey. 728 responses were received with 97% of the respondents indicating they live in Orinda.
4 days ago · Suk Min Choi, 24, a.k.a. “Alex Choi,” of Studio City, is charged with one count of causing the placement of an explosive or incendiary device on an aircraft. Choi is scheduled to make his initial appearance this afternoon in United States District Court in downtown Los Angeles.
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