COFFEE SHOPS IMPACT ON THE WATER RENEWAL SYSTEM By: Zach Conde, - - PowerPoint PPT Presentation

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COFFEE SHOPS IMPACT ON THE WATER RENEWAL SYSTEM By: Zach Conde, - - PowerPoint PPT Presentation

Nov 13, 2022 40 likes •725 views

COFFEE SHOPS IMPACT ON THE WATER RENEWAL SYSTEM By: Zach Conde, City of Boise Pretreatment Program AREA OF IMPACT Population 223K in the City of Boise 25K In the City of Eagle 12K In the City of Garden City Total of 265K

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COFFEE SHOPS IMPACT ON THE WATER RENEWAL SYSTEM

By: Zach Conde, City of Boise Pretreatment Program

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 2

AREA OF IMPACT

  • Population
  • 223K in the City of Boise
  • 25K In the City of Eagle
  • 12K In the City of Garden City
  • Total of 265K in our area
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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 3

PUBLICLY OWNED TREATMENT WORKS (POTW)

  • 900 + miles of pipe within the City
  • West Boise Water Renewal Facility
  • Current design flow is 24 million

gallons per day (MGD)

  • Typical flow is 17 MGD
  • Lander Street WRF
  • Design flow is 17 MGD
  • Typical flow is 11 MGD
  • Current total system design flow
  • ~40 MGD
  • Typical flow is 28 MGD
  • Biological plants…FOG impacts

West Boise Lander

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 4

PRETREATMENT PROGRAM TODAY

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 5

ORG CHART

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 6

INTERJURISDICTIONAL AGREEMENTS

EAGLE
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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 7

SIGNIFICANT INDUSTRIAL USERS

  • 17 total SIUs in jurisdictional area
  • 15 in Boise
  • 1 in Garden City
  • 1 in West Boise Sewer District
  • 0 in Eagle Sewer District
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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 8

MINOR INDUSTRIAL USERS

  • Restaurants
  • Breweries
  • Auto Shops
  • Machine Shops
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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 9

DENTAL PRACTICES

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 10

STORMWATER

Hotline Complaints, Airport MS4, High Risk Industrial, Routine Inspections

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 11

OTHER TASKS

...COFFEE SHOP STUDY

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 12

COFFEE SHOPS

  • Prior to 2015 no grease abatement required for stand alone coffee shops
  • Why would they need grease abatement? It’s JUST COFFEE!!
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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 13

DOWNSTREAM ACCUMULATIONS

In 2015, our crews & other local districts staff started routinely finding fats, oil and grease accumulations in City main sewer lines

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 14

OTHER MUNICIPALITIES… KENNEWICK , WA

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 15

FACTORS

  • We know other municipalities have required all coffee shops to install grease

abatement

  • We know our UM crew, and other local districts are finding FOG
  • Maybe they do need grease abatement
  • Need data to back up need for grease abatement before starting to require

it

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 16

COFFEE SHOP STUDY

We decided to collect our own data to find out if coffee shops do have an impact on our water renewal system

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 17

COFFEE SHOPS

  • 99 total stand alone coffee shops
  • 82 in Boise
  • 9 in Garden City
  • 8 in Eagle
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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 18

7 COFFEE SHOPS WERE CHOSEN

Garden City West Boise Eagle Boise

CS#1 CS#3 CS#6 CS#5 CS#2 CS#4 CS#7

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 19

QUALIFYING SHOPS

Only shops with existing exterior grease interceptors (1500 gallons)

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 20

DATA COLLECTED

  • March – August 2017, monthly inspections
  • Checked grease interceptor for loadings, monitor accumulations
  • Obtained cleaning records to ensure adequate cleaning schedule
  • Discussed various BMP questions, drinks per day, hours of operation, etc.
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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 21

F.O.G. IN PRIMARY CHAMBER

Needs Cleaned

5 10 15 20 25 30 35 40

March April May June July August

CS#1 CS#2 CS#3 CS#4 CS#5 CS#6 CS#7

Inches

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 22

DRINKS PER DAY

200 400 600 800 1000 1200

CS#1 CS#2 CS#3 CS#4 CS#5 CS#6 CS#7 Drinks per Day

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 23

AVERAGE GALLONS DOWN DRAIN PER DAY

1 2 3 4 5 6 7 8 9

CS#1 CS#2 CS#3 CS#4 CS#5 CS#6 CS#7 Gallons

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 24

ANNUAL CLEANING FREQUENCY

1 2 3 4 5 6 7

CS#1 CS#2 CS#3 CS#4 CS#5 CS#6 CS#7 Cleanings per Year

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 25

HIGHEST VOLUME OF FOG DISCHARGE

CS#4 CS#6 CS#7

1000 drinks per day 800 drinks per day 1000 drinks per day 5 gallons down per day 7.8 gallons down per day 3 gallons down per day Clean GI 6x annually Clean GI 2x annually Clean GI 2x annually

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 26

COFFEE SHOP STUDY RESULTS

  • All facilities have accumulations of FOG in grease interceptors
  • Highest output facility loads a 1500 gallon grease interceptor in 2 months
  • They do have an impact!
  • Variable loadings…
  • Many factors could lead to the variability…BMPs …connections to GI…# of

drinks served…etc.

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 27

NEXT STEPS

  • Now that we know Coffee Shop FOG exists, and has potential to impact the

water renewal system, what is next?

  • More information is needed!
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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 28

AREA WIDE SURVEY

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 29

COFFEE SHOP SURVEY

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 30

CONTACT INFORMATION

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 31

#1 & #2 - SPECIALTY COFFEE DRINKS

  • 1. Does your facility make specialty

coffee drinks? (If no, skip questions #2 - #15, sign, date, and submit. If yes, continue to question #2.)

  • 2. How many specialty coffee drinks

does your facility make on average per day?

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 32

QUALIFYING COFFEE SHOPS

  • Yes
  • Make coffee drinks other than drip

coffee

  • Espresso drinks, milk coffee drinks,

creamer coffee drinks, blended coffee drinks, etc.

  • No
  • Cook food on site
  • Only make drip coffee
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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 33

#3 & #4 – GREASE ABATEMENT

  • 3. Does your facility have grease abatement equipment installed (grease trap,

grease interceptor, electro-mechanical device, etc.)? (If no, skip questions #4-#10. If yes, continue to question #4.)

  • 4. What type of grease abatement equipment do you have (please include

type, capacity, location, etc.)?

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 34

GREASE ABATEMENT - GREASE INTERCEPTOR

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 35

GREASE ABATEMENT – GREASE TRAP

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 36

GREASE ABATEMENT – ELECTRO-MECH. DEVICE

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 37

#5 & #6 – CLEANING PRACTICE

  • 5. Is your grease abatement

equipment cleaned in house or contracted out?

  • 6. If contracted out, who is the

contractor?

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 38

#7, #8 & #9 – CLEANING FREQUENCY

  • 7. How frequently is your grease abatement equipment cleaned?
  • 8. What date was your grease abatement equipment last cleaned?
  • 9. Do you keep a record of all grease abatement equipment cleanings?

(If yes, please attach a copy of your cleaning log and/or record of recent cleanings.)

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 39

RECORD KEEPING

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 40

#10 – FIXTURES CONNECTED

  • 10. Please list all fixtures that are connected to your grease abatement

equipment (sinks, sprayers, floor drains, floor sink, mop sinks, etc.).

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 41

#11 & #12 – RINSE SPRAYER

  • 11. Does your facility utilize a rinse

sprayer to clean specialty coffee drink making equipment (blenders, frothing pitchers, cups, etc.)?

  • 12. If yes, how many sprayers does

your facility utilize?

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 42

#13 & #14 – “DUMP” POLICIES

  • 13. Please explain your facility’s policy to “dump” milk, creamers, coffee drinks,
  • etc. down the drain after a certain period?
  • 14. What quantity (gallons) of milk, creamers, bad coffee drinks, etc. are

poured down the drain on average per day?

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 43

#15 – OTHER BEST MANAGEMENT PRACTICES

  • 15. Please list and explain any other best management practices your facility

has implemented to avoid discharges of fats, oil, and grease down the drain. (If more space is needed, please attach on separate sheet of paper.)

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 44

QUALIFIED SIGNATORY

*Qualified signatory: General Office manager or Senior technical staff designated by a proprietor, partner or corporate officer to handle regulatory affairs and/or manage contracts for services necessary for the routine

  • peration of the facility.

Name (print) Title Signature Date

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 45

SENT TO ALL 99 COFFEE SHOPS

  • Cover letter to explain why we

are doing the survey

  • Included web address for online

survey option

  • Only one attempt
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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 46

27/99 SURVEYS RETURNED

Total is 27

30% 15% 18% 30% 7% In Person

8 Responses

Mail

8 Responses

Online

5 Responses

Email

4 Responses

Call

2 Responses

Total of 27 Facilities

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 47

DO THEY QUALIFY?

No Yes (11)

Total is 27

70% 30% Yes No

19 Do Quality

Total of 27 Facilities

8 Do Not Quality

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 48

NUMBER OF DRINKS PER DAY

# (4) # Total is 27

21% 21% 58% 200 or Less More Than 500 201- 500 Total of 6130 drinks per day at the qualifying facilities Total of 19 Facilities

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 49

DO THEY HAVE GREASE ABATEMENT?

Total is 27

53% 47% Yes No Total of 19 Facilities

9 Do Not Have Grease Abatement 10 Have Grease Abatement

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 50

GREASE ABATEMENT TYPE

Total is 27

80% 20% 0% Grease Interceptor Grease Trap Electro Mechanical Device Total of 10 Facilities

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 51

GALLONS OF WASTE DOWN DRAIN PER DAY

Total is 27

48% 5% 47% 1 or Less 1.1 to 5 More Than 5 Total of 40 gallons

  • f waste per day

“dumped” at the qualifying facilities Total of 19 Facilities

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 52

WASTE DOWN DRAIN

  • Of the 27 respondents…
  • Over a month that is 1,200 gallons
  • Over a year that is 14,400 gallons
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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 53

WASTE CAPTURED IN GREASE ABATEMENT

67% 33% 13 Gallons Not Captured 27 Gallons Captured in Grease Abatement Total of 40 Gallons

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 54

WITHOUT GREASE ABATEMENT

  • Of the 27 respondents, 9 do not have grease abatement
  • 13 gallons per day
  • Over a month that is 390 gallons
  • Over a year that is 4,680 gallons
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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 55

POTENTIAL FROM NO RESPONSE FACILITIES

  • 72 Surveys were not returned
  • Average of ~2 gallons per day per facility
  • If none of the 72 have grease abatement – potentially another 144 gallons per

day

  • Another 4,320 gallons per month
  • Another 51,840 gallons per year

+4,680 gallons (know do not have grease abatement) =56,520 gallons of potential impact =10+ Milk Trucks!

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 56

WHAT DID WE LEARN?

LARGE POTENTIAL FOR IMPACTS! GREASE ABATEMENT NEEDED!

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 57

WRITE A WHOLE NEW PRETREATMENT CODE?

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 58

BOISE MUNICIPAL CODE TITLE 8 CHAPTER 14

BMC 8-14-04.02 A. No user shall contribute or cause to be discharged, directly

  • r indirectly, any of the following described substances into the POTW:
  • 5. Any solid or viscous substances which will or may cause obstruction to

the flow in a sewer or other interference with the operation of the wastewater system, such as, but not limited to: grease…

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 59

MOVING FORWARD

  • Grease abatement is required for any coffee shop remodel and/or new

construction

  • Grease abatement is required for existing coffee shops when fats, oil and

grease is found in City main line downstream of their facility

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 60

2018 PLAN REVIEWS

We have had 3 coffee shop new construction plan submittals, and required grease abatement for all 3

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 61

WIN FOR THE COLLECTION & WATER RENEWAL SYSTEMS

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 62

QUESTIONS?

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 63

HOME OF BOISE STATE UNIVERSITY

3-0 AGAINST UNIVERSITY OF OREGON DUCKS IN FOOTBALL

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 64

F.O.G. IN PRIMARY CHAMBER

Needs Cleaned

5 10 15 20 25 30 35 40 March April May June July August

CS#1 CS#2 CS#3 CS#4 CS#5 CS#6 CS#7

inches Inches

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 65

HIGHEST VOLUME OF FOG DISCHARGE

CS#4 CS#6 CS#7

1000 drinks per day 800 drinks per day 1000 drinks per day 5 gallons down per day 7.8 gallons down per day 3 gallons down per day Clean GI 6x annually Clean GI 2x annually Clean GI 2x annually

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 66

TIMELINE - PRETREATMENT PROGRAM

  • 1970 - Environmental Protection Agency (EPA) Established
  • 1972 – Clean Water Act (CWA) Passed 1978 – EPA Promulgated 40 CFR

403.5(b) Specific Prohibitions. In addition, the following pollutants shall not be introduced into a POTW: (3) Solid or viscous pollutants in amounts which will cause obstruction to the flow in the POTW resulting in Interference

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 67

BOISE MUNICIPAL CODE TITLE 8 CHAPTER 14

  • Suitable and adequate grease abatement
  • February 2006 - Fats, Oil and Grease (FOG) BMPs for Food Service

Establishments

  • May 1st, 2007 – Council formally adopts the EPA Streamlining Rule – BMPs in

lieu of numerical limits

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LASTING ENVIRONMENTS | INNOVATIVE ENTERPRISES | VIBRANT COMMUNITIES 68

REQUIRED FOG BMPS

Clean Grease Interceptor every 60- 90 days, unless less frequent schedule can be demonstrated Clean Passive Grease Trap weekly, unless less frequent schedule can be demonstrated Clean Electro- mechanical Automatic Traps solids strainer daily, wiper blades weekly, and deep clean quarterly Keep records on site and ready for inspection.