Nev. Admin. Code § 445A.27618 - Reuse category A+: Water quality requirements for reclaimed water for indirect potable reuse using spreading basin or injection well
In addition to the requirements for water quality specified in section 12 , reclaimed water in reuse category A+ that is intended for indirect potable reuse achieved through the use of:
1. A spreading basin must meet the minimum requirements for bacteriological quality for reuse category A before the reclaimed water is discharged to the spreading basin. For each month such reclaimed water is retained underground, the Division may credit the reclaimed water with 1-log enteric virus reduction. The Division may credit the reclaimed water with up to 10-log Giardia lamblia cyst reduction and up to 10-log Cryptosporidium oocyst reduction for treatment within the vadose zone.
2. An injection well must pass through a minimum of three separate treatment processes for pathogen removal. A treatment process may be credited with a maximum of 6-log reduction and a minimum of 1-log reduction. For Giardia lamblia cyst reduction and Cryptosporidium oocyst reduction, the point of compliance is at the point of injection. For each month such reclaimed water is retained underground, the Division may credit the reclaimed water with 1-log enteric virus reduction. The point of compliance is the point of extraction.
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