See Jason’s updates. The gpm rates were reversed, which makes more sense. The 2 larger HP pump generate a larger GPM rate.
Jennifer Cline, P.E.
City of Molalla
Public Works Director
O: 503.759.0218
F: 503.829.3676
From: Jason Clifford [mailto:jclifford@cityofmolalla.com]
Sent: Wednesday, June 24, 2015 2:15 PM
To: Jennifer Cline
Subject: RE: Transfer Pump Info
Jennifer,
I edited the pumps max flows. Two of the numbers got reversed. I highlighted them in yellow. Sorry about that.
Thanks,
Jason
From: Jennifer Cline [mailto:jcline@cityofmolalla.com]
Sent: Wednesday, June 24, 2015 12:52 PM
To: Jason Clifford
Cc: Dan Huff; Jake Ehredt; Christine Hein
Subject: RE: Transfer Pump Info
Thank you for your help on this. We are preparing to sign the consent decree soon. There will be a few small changes on our part as most of the CD follows our current NPDES permit.
I will be working on drafting the ERP for the WWTP over the next few days. I hope to have a draft out to everyone (including you to review) by Friday. We are planning to have this in place prior to signing the CD so we are not in violation from the get go.
Jennifer Cline, P.E.
City of Molalla
Public Works Director
O: 503.759.0218
F: 503.829.3676
From: Jason Clifford [mailto:jclifford@cityofmolalla.com]
Sent: Wednesday, June 24, 2015 12:04 PM
To: Jennifer Cline
Subject: RE: Transfer Pump Info
Hi Jennifer,
Pump 1: 112hp; 5800gpm at 51’ of total head; max flow is 8000gpm
Pump 2: 112hp; same as above
Pump 3: 50hp; 2400gpm at 49’ of total head; max flow is 4300gpm
Those gpm’s will vary throughout the day and night and weekends.
Pump 3 is relatively new; maybe a year to a year and a half ago. The other two I don’t know.
Hope this helps,
Jason
From: Jennifer Cline [mailto:jcline@cityofmolalla.com]
Sent: Wednesday, June 24, 2015 11:33 AM
To: Jason Clifford
Subject: Transfer Pump Info
Hi Jason,
I have a few questions regarding the transfer pumps.
Can you please provide the pump HP and maximum pump capacity rate (gpm or gph) for each pump?
Pump 1:
Pump 2:
Pump 3:
Thank you,
Jennifer Cline, P.E.
Public Works Director
117 N Molalla Ave.
PO Box 248 *
Molalla, OR 97038
O: 503.759.0218
F: 503.829.3676