From: Jennifer Cline

Sent: Wed Dec 02 12:53:00 2015

To: Bob Sweeney

Cc: Jason Clifford; Dan Huff

Subject: RE: Plans for Filter System Construction

Importance: Normal

Attachments: image001.png; WORK ORDER (15-0167-01 02Dec2015).pdf;

 

Hi Bob,

Thank you for the work order and prompt correspondence. I am still gathering some final information on the warrantee to verify if we are covered for any part of the repairs, generally speaking. Once I have all the information gathered I will let you know how we want to proceed.

Regards,

Jennifer Cline, P.E. | Public Works Director

Licensed in OR, WA

City of Molalla

117 N Molalla Ave. | PO Box 248 * |Molalla, OR 97038

O: 503.759.0218 | F: 503.829.3676

From: Bob Sweeney [mailto:bob@envmgtsys.com]

Sent: Wednesday, December 02, 2015 12:11 PM

To: Jennifer Cline <jcline@cityofmolalla.com>

Cc: Jason Clifford <jclifford@cityofmolalla.com>

Subject: RE: Plans for Filter System Construction

Jennifer,

As discussed, I have prepared a work order to assist you with developing some options and costs. We should approach this one step at a time.

Additional assistance with project management & bidding can be performed, once we settle on a course of action.

Please review the attached Work Order and let me know if this works for you.

Thanks, BobS

From: Jennifer Cline [mailto:jcline@cityofmolalla.com]

Sent: Tuesday, December 01, 2015 2:37 PM

To: Bob Sweeney <bob@envmgtsys.com>

Cc: Jason Clifford <jclifford@cityofmolalla.com>

Subject: RE: Plans for Filter System Construction

Hi Bob,

I have attached all sections of the Westech Gravity Filters O&M manual, with exception to the Accessory Equipment section. I do not see any information anywhere on warrantee, which I would expect it to be found here.

Jennifer Cline, P.E. | Public Works Director

Licensed in OR, WA

City of Molalla

117 N Molalla Ave. | PO Box 248 * |Molalla, OR 97038

O: 503.759.0218 | F: 503.829.3676

From: Bob Sweeney [mailto:bob@envmgtsys.com]

Sent: Monday, November 30, 2015 3:57 PM

To: Jennifer Cline <jcline@cityofmolalla.com>

Cc: Jason Clifford <jclifford@cityofmolalla.com>

Subject: RE: Plans for Filter System Construction

Jennifer,

The problem you’re having seems to be fairly common with steel tanks, but not usually this soon. They were installed in or about 2007, correct?

Traditionally, the sand is vacuumed out and the inside inspected. If the structure is found to be sturdy enough, seals are replaced, surface sanded down, patched, and re-coated.

Newer materials, such as Composite Fiberglass Tanks may be cost-effective, especially if more than one is leaking.

More soon, Thanks, BobS

From: Bob Sweeney

Sent: Monday, November 30, 2015 2:49 PM

To: 'Jennifer Cline' <jcline@cityofmolalla.com>

Cc: Jason Clifford <jclifford@cityofmolalla.com>

Subject: RE: Plans for Filter System Construction

Jennifer,

Questions:

1. What is your current & projected wastewater flow?

2. The 2007 design shows a Peak Day Flow Design capacity of 8.5 MGD for 2015, with planned capacity of 10.3 MGD by 2025. Were all components for 2025 constructed?

3. Are you currently meeting your effluent quality limits?

4. Are there leaks from only 1 of the Sand Filters or more?

Thanks, BobS

From: Jennifer Cline [mailto:jcline@cityofmolalla.com]

Sent: Monday, November 30, 2015 1:49 PM

To: Bob Sweeney <bob@envmgtsys.com>

Cc: Jason Clifford <jclifford@cityofmolalla.com>

Subject: RE: Plans for Filter System Construction

Hi Bob,

Here are a few photos of the area around the gravity filter, just after the leak was discovered.

Jennifer Cline, P.E. | Public Works Director

Licensed in OR, WA

City of Molalla

117 N Molalla Ave. | PO Box 248 * |Molalla, OR 97038

O: 503.759.0218 | F: 503.829.3676

From: Bob Sweeney [mailto:bob@envmgtsys.com]

Sent: Monday, November 30, 2015 11:40 AM

To: Jennifer Cline <jcline@cityofmolalla.com>

Cc: Jason Clifford <jclifford@cityofmolalla.com>

Subject: RE: Plans for Filter System Construction

Jennifer,

Got it & will review & respond.

Thanks, BobS

From: Jennifer Cline [mailto:jcline@cityofmolalla.com]

Sent: Monday, November 30, 2015 11:21 AM

To: Bob Sweeney <bob@envmgtsys.com>

Cc: Jason Clifford <jclifford@cityofmolalla.com>

Subject: Plans for Filter System Construction

Hi,

Per our phone conversation, attached is the full plan set of the WWTP Improvements made in 2007. These plans include the construction of the sand filters. Filter #1 is in need of the repairs.

Regards,

Jennifer Cline, P.E. | Public Works Director

Licensed in OR, WA

City of Molalla

117 N Molalla Ave. | PO Box 248 * |Molalla, OR 97038

O: 503.759.0218 | F: 503.829.3676

image