City of Morgan Hill Sewer System Master Plan 2017

City of Morgan Hill Sanitary Sewer Flow Monitoring and Inflow/Infiltration Study

Table 3. List of Flow Monitoring Sites

Pipe Diameter (in)

Metering Site

Location

Site 1 Site 2 Site 3 Site 4 Site 5 Site 6 Site 7 Site 8 Site 9

18

Behind Residence Inn, off Madrone Pkwy. Butterfield Blvd., south of Jarvis Dr. Intersection of Main Ave. and Monterey Rd. E. Dunne Ave, just east of Butterfield Blvd. Intersection of Barrett Ave. and Railroad Ave. Intersection of Barrett Ave. and Railroad Ave. Intersection of Edes St. and Monterey Rd. W. Edmundson Ave., just west of Monterey Rd.

19.75

15 12 24

17.75

21

17.5

15

Hale Ave., north of Wright Ave.

Site 10

11.75

Easement west of Monterey Rd., north of California Ave.

Table 4. Flow Monitoring Basin Information

Flow Metering Basin

Metering Basin Size (acres)

Basin Flow Calculation

Q 1(Basin) Q 2(Basin) Q 3(Basin) Q 4(Basin) Q 5(Basin) Q 6(Basin) Q 7/8(Basin)

= Q 1(Site) = Q 2(Site) = Q 3(Site) = Q 4(Site) = Q 5(Site) = Q 6(Site)

Basin 1 Basin 2 Basin 3 Basin 4 Basin 5 Basin 6

817 910 345 823 807 765 284 481

– Q 1(Site) – Q 9(Site)

– Q 2(Site)

– Q 3(Site)

– Q 4(Site)

1,918

= Q 7(Site)

+ Q 8(Site)

Basin 7/8

Basin 7 4 Basin 8 4

Q 7(Basin) = Q 7(Site) Q 8(Basin) = Q 8(Site)

= Q 9(Site)

Q 9(Basin) Q 10(Basin)

Basin 9 Basin 10

1,094

454

= Q 10(Site)

City of Morgan Hill Collection System

= Q Harding

9,500

Q System

4 Basin 7 and 8 sizes in acres assume that cross-connections between the basins were not active during this flow monitoring study. Report analyses assume non-active cross-connections and analysis results are shown for informational purposes only and should be used per the discretion of the reader.

12-0248 AEG CofMorganHill FM Rpt.docx

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