NC0039586_Permit Modification_20010201

Re: CP&L Harris Plant NPDES NCO039586
Subject: Re: CP&L Harris Plant NPDES NCO039586
Date: Thu, 01 Feb 2001 15:54:29 -0500
From: Tom Belnick <[e-mail]>
To: "Cooke, Joanie" <[e-mail]>
CC: Tom Belnick <[e-mail]>
Joanie- based on the attached data the facility will remain well within its
design flow, therefore CP&L can proceed foward without any permit modifications.
"Cooke, Joanie" wrote:
> Tom,
> As we discussed, the Harris plant is going to add some lift station that
> will receive flow from 19 toilets (fixtures). Based on my calculation of
> flow and the existing capacity of the system, the plant can proceed with
> installation. Below is the usual information on the expected additional
> load.
> The sewage treatment plant is permitted to a effluent flow of 0.05 MGD..
> Proposed to add 19 new fixtures (loading) to the existing system's hydraulic
> load. Each new fixture adds 250 gallons of loading (state number) to the
> system. Hence, the new fixtures will add an additional 4,750 gallons of
> load a day to the system.
> Using past operating values for flow, the maximum monthly value was 0.019
> MGD (19,000 gals per day). Therefore, looking at the worst case monthly
> value of 19,000 gals and increasing that flow by 4,750 gals per day to a
> total of 23,750 gals per day or 0.02375 MGD, the permitted design flow for
> the STP will not be exceeded. Based on the above information, the plant can
> proceed with the installations.
> Joanie P. Cooke
> CP&L, A Progress Energy Company
> [phone], [e-mail]
> Pager [phone]
> Fax [phone]
Mailto:[e-mail]
N.0 DENR-DWQ/NPDES Unit
1617 Mail Service Center, Raleigh NC 27699-1617
Work: [phone] ext. 543
Fax: [phone]
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