[00:00:02]
[CALL TO ORDER]
TO ORDER.SORRY, THAT SHOULD KEEP YOU WAITING A COUPLE MINUTES.
YEAH, IT, UM, ALL, ALL OF OUR MEMBERS TURN ON YOUR CAMERA TO BE COUNTED AS PRESENT PLEASE.
NATALIE, WHO ELSE DO WE HAVE? OKAY.
MELISSA, NATALIE, ARE YOU, ARE YOU THERE? DID YOU MAYBE STEP AWAY? WE HAVE MORE.
WE'RE GONNA GO AHEAD AND START AND THEN, HELLO.
UM, DO WE HAVE ANYBODY SIGNED UP TO SPEAK? OKAY.
[1. Approval of minutes from the November 20th, 2024 meeting of the Joint Sustainability Committee. ]
BE THE MINUTES FROM OUR LAST MEETING.I JUST HAVE A QUICK CORRECTION ON THE MINUTES.
NUMBER NINE A, UM, THE AMOUNT OF THE GRANT OF THE EPA GRANT WAS 31.6 MILLION INSTEAD OF 36.1.
AND THEN GRANT IN THAT FOLLOWING SENTENCE IS MISSING A T.
ROHAN, YOU HAVE THAT CORRECTION.
ANY OTHER EDITS TO THE EDITS? UM, THIS IS HEATHER.
MY NAME WAS MISSPELLED IN THE ATTENDANCE.
AND, UM, NOW THAT I'M LOOKING AT NINE, A SMALL THING, BUT IT SAYS THE GRANT INSTEAD OF THE GRANT.
UM, YOU'RE UNABLE TO HEAR AS FAR AS YOU WERE SPEAKING.
I DON'T KNOW IF FOLKS CAN HEAR ME.
UM, CAN SOMEBODY ELSE WHO'S ONLINE MAYBE TEXT OR, YOU KNOW, DO A CHAT TO LET HER KNOW THAT WE CAN HEAR HER, BUT MAYBE TRY SIGNING OFF AND SIGNING BACK ON? YEAH, THANKS.
UM, NO OTHER EDITS FOR THE MINUTES? IF NOT, WE CAN, I GUESS REALLY WE SHOULD HAVE DONE A MOTION FIRST, BUT THAT'S FINE.
UM, AND I'M SEEING OTHERS CAN HEAR JUST FINE.
SO IT MIGHT HAVE ALREADY, USUALLY IT'S ALREADY ON SECOND.
SO WE'VE GOT A MOTION AND A SECOND TO APPROVE THE MINUTES.
ALL IN FAVOR, PLEASE RAISE YOUR HAND.
I CAN'T SEE EVERYBODY, BUT WE DEFINITELY HAVE ENOUGH TO APPROVE, SO THAT'S GREAT.
SORRY, MY COMPUTER DID A RESTART, SO EVERYTHING THAT I HAD OPEN HAD TO REOPEN.
FIRST UP, WE ARE GONNA HEAR FROM, UH, CARRIE WATERS WITH THE CITY OF PORTLAND.
YOU CAN HEAR US NOW AND I CAN CALL IN ALSO.
DID SHE, DID SHE ALREADY SIGN OFF AND BACK ON? YEAH, I CAN HEAR YOU TOO.
CAN SOMEBODY CHAT HER TO, UM, TRY CALLING? YEAH, CALL, CALL IN.
IT'S ALWAYS SOMETHING WITH WEB WEBEX, WE BARELY GET THROUGH WEBEX.
PRESS ONE TO BE CONNECTED TO YOUR MEETING.
CARRIE, CAN YOU HEAR US NOW? WAIT, NOW WE, WE CAN'T HEAR
[00:05:01]
YOU.LET'S, I DO THINK YOU MAY, MAYBE YOU NEED TO UNMUTE ON YOUR PHONE.
SORRY CARRIE, UH, GLAD THAT YOU'RE, THAT YOU'RE HEARING AND BEING HEARD NOW.
AND THANK YOU SO MUCH FOR JOINING US.
UM, LOOKING FORWARD TO HEARING WHAT YOU'RE DOING IN THE CITY OF PORTLAND.
'CAUSE WE'VE BEEN TALKING ABOUT LOW CARBON CONCRETE A LOT AND WANNA LEARN FROM YOU.
UM, ARE YOU GONNA SHARE THE PRESENTATION DIRECTLY OR DO YOU WANT US TO SHARE IT? ROHAN, DO YOU HAVE IT? YEAH, I CAN SHARE THE PRESENTATION DIRECTLY.
ARE YOU READY TO START? I WASN'T SURE IF THERE WAS ANYTHING ELSE BEFORE.
UM, YEAH, YOU CAN JUST JUMP RIGHT IN IF YOU WILL.
BEAR WITH ME JUST ONE MORE MOMENT.
ALRIGHT, LET'S GO AHEAD AND SHARE.
AND HOPEFULLY YOU CAN SEE MY SCREEN NOW.
[2. Low Carbon Concrete in Portland, OR – Cary Watters, City of Portland]
YOU SO MUCH FOR THE INVITATION TO BE HERE WITH YOU TO SHARE ABOUT THE CITY OF PORTLAND LOW CARBON CONCRETE PROGRAM.JOANNA ANDERSON FROM THE EPA GAVE A PRESENTATION IN OCTOBER, AND IT'S GREAT TO HEAR THAT YOU ARE EXPLORING A LOW CARBON CONCRETE PROGRAM AND YOU'RE PURSUING FUNDING FROM THE FHWA LOW CARBON TRANSPORTATION MATERIALS PROGRAM.
HOPEFULLY BOTH OF OUR AGENCIES CAN GET FUNDED AND WE CAN CONTINUE TO BUILD ALIGNMENT AND INNOVATION TOGETHER.
UM, SO A BIT ABOUT ME BEFORE I JUMP INTO OUR SLIDES.
I COME BEFORE YOU TODAY AS A MESSENGER WITH THE INTENT TO DO JUSTICE TO THE AMAZING WORK COMPLETED BEFORE I CAME ON BOARD IN MY CURRENT ROLE.
UM, SO FOR THE PAST YEAR AND A HALF, I HAVE BEEN WORKING AS SUSTAINABLE PROCUREMENT PROGRAM MANAGER AND MY PREDECESSOR, STACY BENNETT, FORMERLY STACY FOREMAN, CHAMPIONED THIS INITIATIVE AND IT WOULD NOT HAVE HAPPENED WITHOUT A DEEPLY COLLABORATIVE APPROACH THAT ENGAGED INTERNAL AND EXTERNAL STAKEHOLDERS ALIKE.
UM, SO A BIG SHOUT OUT OF THANKS GOES OUT TO LAUREN ZIMMERMAN, JOSH HUBER, AND ANDREW WEIR, WHO ARE ALL HERE, AND THEIR KEY MEMBERS OF OUR CORE TEAM WHO ARE PRESENT AS SUBJECT MATTER EXPERTS TODAY TO ANSWER ANY QUESTIONS BASED ON THEIR POSITIONING IN THE CITY OF PORTLAND BUREAUS OF PLANNING AND SUSTAINABILITY, ENVIRONMENTAL SERVICES AND TRANSPORTATION.
I, MYSELF AM HOUSED WITHIN OUR CENTRAL PROCUREMENT SERVICES TEAM.
UM, AND FURTHER I WILL UNDERSCORE THE SHOUT OUT TO LAUREN ZIMMERMAN, WHO TOOK ON MANY PRESENTATION OPPORTUNITIES OVER TIME AND WHO PUTS THE LION'S SHARE OF EFFORT INTO THIS PRESENTATION TODAY.
ALRIGHT, SO HERE'S THE AGENDA FOR OUR TIME TOGETHER.
I WILL START BY SHARING ABOUT THE INITIATIVES, ORIGINS AND DEVELOPMENT, EARLY APPLICATION OF PILOT PROJECTS, DEVELOPMENT OF AN EMBODIED CARBON THRESHOLD THROUGH GLOBAL WARMING POTENTIAL, OUR EXEMPTION PROCESS AND SOME MYTH BUSTING OF COMMON MISCONCEPTIONS AND LESSONS LEARNED.
I'VE GOT ABOUT 20 SLIDES, SO WE SHOULD HAVE AMPLE TIME FOR OPEN DISCUSSION, BUT PLEASE FEEL FREE TO ASK QUESTIONS ALONG THE WAY.
I WILL ASK OUR HOST TO KEEP AN EYE OUT FOR RAISED HANDS AND QUESTIONS IN THE CHAT.
SO, THE CITY OF PORTLAND SUSTAINABLE PROCUREMENT PROGRAM HAS BEEN AROUND FOR TWO DECADES, AND THE LORE, AS I UNDERSTAND IT, IS THAT IT BEGAN WITH A FOCUS ON ORDINARY GOODS AND SERVICES LIKE USING RECYCLED PRODUCTS FOR PAPER AND OFFICE SUPPLIES.
BUT IN 2016, WE COMMISSIONED A SUSTAINABLE SUPPLY CHAIN ANALYSIS, WHICH IDENTIFIED CONSTRUCTION SERVICES AS THE TOP SPEND CATEGORY CONTRIBUTING TO THE CITY'S SUPPLY CHAIN, GREENHOUSE GAS EMISSIONS, AND OVERALL ENVIRONMENTAL IMPACT.
AND THIS DATA INFORMED OUR SHIFT IN DIRECTION TOWARDS INITIATIVE LIKE THE LOW CARBON CONCRETE PROGRAM, OUR SUSTAINABLE WOOD SOURCING CONSULTING PILOT WITH A LOCAL NONPROFIT ORGANIZATION AND OUR CLEAN AIR CONSTRUCTION PROGRAM TO REDUCE DIESEL PARTICULATE MATTER FROM OUR CONSTRUCTION EQUIPMENT.
SO WITHIN CONSTRUCTION SERVICES, CONCRETE WAS RECOGNIZED AS ONE OF THE MOST GREENHOUSE GAPS INTENSIVE MATERIALS TYPICALLY USED ON CITY PROJECTS.
AND AS A RESULT IN 2019, AFTER GATHERING BOTH INTERNAL AND
[00:10:01]
EXTERNAL STAKEHOLDER INPUT, THE CITY ESTABLISHED OUR LOW CARBON CONCRETE INITIATIVE TO REDUCE THE OVERALL CARBON INTENSITY OF THE CONCRETE MIXES USED ON CITY OF PORTLAND PROJECTS.IT IS SO IMPORTANT TO RECOGNIZE THAT THE CITY OF PORTLAND AND THE STATE OF OREGON PARTNERED ON THIS EFFORT BY CLEAN LEGISLATION WAS INTRODUCED IN 2017, BUT IT DIDN'T PASS.
BUT BY THE TIME OF 2022 OREGON LEGISLATION, IT WAS FULLY SUPPORTED BY CONCRETE AND ASPHALT ASSOCIATIONS ALIKE SINCE THEY WERE PARTNERS, UM, IN THE CITY OF PORTLAND STAKEHOLDER ENGAGEMENT PROCESS.
SO WITH THOSE INDUSTRY REPRESENTATIVES ALREADY AT THE TABLE, THE DEPARTMENT OF TRANSPORTATION, UM, BY CLEAN BILL PASSED, I WAS NOT IN MY CURRENT ROLE DURING THIS PERIOD, WHICH I MENTIONED ALREADY.
SO ONCE AGAIN, I WOULD BE REMISS IF I DIDN'T RECOGNIZE THE GREAT WORK OF STACEY BENNETT AND THE SUSTAINABLE PROCUREMENT PROGRAM MANAGER AT THE TIME.
AND ALSO JORDAN PALMER, WHO WAS AT THE OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY AT THE TIME, WHO NOW CONTINUES TO CHAMPION THIS WORK AT THE CARBON LEADERSHIP FORUM.
A GREAT RESOURCE IF YOU'RE NOT ALREADY CONNECTED TO THAT ORGANIZATION, LIKE OUR OTHER PROGRAMS WITHIN THE SUSTAINABLE PROCUREMENT REALM.
FOR EXAMPLE, THE CLEAN AIR CONSTRUCTION PROGRAM, THERE WAS A MULTI-YEAR PHASE IN PROCESS FOR COMPLIANCE.
SO THIS STARTED WITH STAKEHOLDER ENGAGEMENT AS EARLY AS POSSIBLE, A THREE YEAR PERIOD DURING, UM, DURING WHICH WE REQUIRED DISCLOSURE OF PRODUCT SPECIFIC ENVIRONMENTAL PRODUCT DECLARATIONS, A KEP DS, WHICH I WILL LIKELY REFER TO THEM AS FOR THE REMAINDER OF THIS PRESENTATION, FOUR CONCRETE PRODUCTS USED IN PORTLAND, WHICH ALSO ALLOWED TIME FOR DATA COLLECTION.
THAT BASELINE EPD WAS ESTABLISHED BASED ON INDUSTRY AVERAGES AND PILOT, OR SORRY, THE BASELINE GLOBAL WARMING POTENTIAL, I BELIEVE, UM, WAS ESTABLISHED BASED ON INDUSTRY AVERAGES.
THE GWP UM, AND PILOT PROJECTS WERE ESTABLISHED TO TEST THESE DIFFERENT MIXES.
THERE WAS DISCUSSION OF THESE PROPOSED LIMITS WITH THE COMMITTEE, AND ULTIMATELY THEY, THEY, WE ESTABLISHED THOSE REQUIREMENTS FOR THE THRESHOLD.
SO LET'S DELVE INTO THE DETAILS OF THESE STEPS.
STEP ONE WAS THE LOW CARBON CONCRETE COMMITTEE, WHICH WAS CONVENED FROM 2020 TO 2022, AND WAS COMPRISED OF STAKEHOLDERS FROM LEADERS IN OUR PROCUREMENT SERVICES TEAM, THE WATER BUREAU, TRANSPORTATION AND ENVIRONMENTAL SERVICES BUREAUS.
EXTERNAL STAKEHOLDERS INCLUDED REPRESENTATIVES FROM THE STATE OF OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY REPRESENTATIVES FROM OUR FOUR LARGEST CONCRETE PRODUCERS, ENGINEERS, ARCHITECTS, CONSTRUCTION FIRMS, AND REGIONAL AGGREGATE PRODUCERS.
WE AT THE CITY OF PORTLAND SEEK DEEP COLLABORATION WHENEVER POSSIBLE BY WORKING ACROSS AS MANY INVOLVED BUREAUS AS POSSIBLE TO MAKE AN INITIATIVE LIKE THIS WORKED.
THE COMMITTEE DETERMINED THAT THE FIRST TASK WAS TO UNDERSTAND THE TYPICAL EMISSIONS OF PORTLAND AREA CONCRETE.
SO TO GO ABOUT LOWERING, EXCUSE ME, THE GLOBAL WARMING POTENTIAL, WHICH I WILL REFER TO AS GWP.
UM, LET'S SEE, I JUST GOT AN EMAIL FROM ROHAN, UM, SAYING WE CAN HEAR, OH, I THINK THIS MIGHT BE FROM BEFORE.
IT WAS TRAVELING THROUGH CYBERSPACE.
THANK YOU SO MUCH FOR CONFIRMING.
UM, SO THE FIRST ACTION THAT THE COMMITTEE TOOK WAS TO GATHER INFORMATION FROM OUR LARGEST READY MIX COMPANIES TO DETERMINE THAT PORTLAND AREA AVERAGE GWP.
AND THIS WAS PAIRED WITH REQUIRING AN ENVIRONMENTAL PRODUCT DECLARATION OR EPD AS I MENTIONED EARLIER, FOR CONCRETE, SO THAT WE COULD BUILD THAT FAMILIARITY FROM THE READY MIX COMPANIES TO DEVELOP EPDS AND FAMILIARITY IN OUR PROCUREMENT TEAMS TO RECEIVE AND ANALYZE THOSE EPDS.
SO IN JANUARY OF 2020, THE CITY OF PORTLAND BECAME THE FIRST CITY IN NORTH AMERICA TO REQUIRE PRODUCT SPECIFIC TYPE THREE EPDS REQUIRED FOR ALL PRE-APPROVED CONCRETE MIX DESIGNS AND CONCRETE MIXES FOR PROJECTS OVER 50 CUBIC YARDS.
BECAUSE THE NATIONAL READY MIX CONCRETE ASSOCIATION ALREADY HAD THESE TOOLS TO ASSIST THE COMPANIES IN DEVELOPING THE EPDS.
THIS WAS NOT A HEAVY LIST, UH, FOR THESE COMPANIES.
AND THE POLICY WAS INCORPORATED IN OUR STANDARD CONSTRUCTION SPECIFICATIONS.
THERE WAS ALSO AN EFFORT TO REVIEW THOSE SPECIFICATIONS FOR BARRIERS TO IMPLEMENTING LOW CARBON CONCRETE, INCLUDING WATER TO CEMENT RATIOS, SUPPLEMENTARY CEMENTITIOUS MATERIALS OR SCM FLOORS AND OR CEILINGS,
[00:15:01]
AND AN AIM FOR PERFORMANCE BASED SPECIFICATIONS.THIS THREE YEAR PERIOD DURING WHICH WE REQUIRED DISCLOSURE OF PRODUCT SPECIFIC EPDS FOR CONCRETE PRODUCTS USED IN PORTLAND, ALSO ALLOWED TIME FOR THAT DATA COLLECTION.
AND OUR MATERIAL TESTING TECHNICIANS LIKE ANDREW AND JOSH WHO ARE PRESENT TODAY, ARE THE ONES TO REVIEW THESE EPS AS THEY COME THROUGH WITH ALL OF THE CONCRETE MIXES SUBJECT TO OUR REQUIREMENTS.
AND I SAW A LITTLE POPUP THAT ANDREW HAD SHARED A COMMENT VIA OUR CHAT.
I DON'T KNOW HOW TO SIGN THE CHAT, UM, WITH THE WINDOW, ANDREW, YOU I WAS JUST PROVIDING, I WAS JUST PROVIDING GREATER CLARIFICATION ON GWP, UM, MM-HMM.
SORRY, I DIDN'T WANT TO INTERRUPT, SO THAT'S WHY I PUT IT IN THE CHAT.
WAS THERE ANYTHING THAT YOU WANTED TO HIGHLIGHT? OH, JUST IT, JUST CLARIFYING THAT GWP OR GLOBAL WARM POTENTIAL IS A MEASUREMENT OF THE IMPACT THE MATERIAL HAS ON THE ENVIRONMENT.
UH, PER CUBIC YARD OR PUBIC METER, IT'S USUALLY EXPRESSES KILOGRAMS, UH, PER COT PER EQUIVALENT YARD OR METER.
UH, BUT ESSENTIALLY THE HIGHER THE NUMBER, THE WORSE IT IS FOR THE ENVIRONMENT.
THANK YOU SO MUCH FOR SHARING THAT ADDITIONAL INFO AND YEAH, MY, MY WEBEX WINDOW WENT AWAY ENTIRELY, BUT HOPEFULLY YOU CAN STILL SEE THE PRESENTATION AND I CAN JUST KEEP PUSHING FORWARD.
CAN YOU STILL SEE YEAH, WE CAN SEE EVERYTHING? MM-HMM
WE ARE MOVING FORWARD TO SLIDE NINE.
UM, SO THE NEXT ACTION WAS TO ANALYZE THE PRODUCTION DATA BY TAKING A SURVEY OF PRODUCTION VOLUMES AND ANALYZING EXISTING ENVIRONMENTAL PRODUCT DECLARATIONS FROM CONCRETE PRODUCTION PLANTS IN THE PORTLAND AREA.
AND THIS GRAPH SHOWS THAT RANGE OF CARBON EMISSIONS PER EACH CONCRETE STRENGTH CLASS WITH THE GRAY BAR COMPARED THEM, COMPARED TO THE GREEN LINE HERE, WHICH REPRESENTS THAT OVERALL PACIFIC NORTHWEST AVERAGE FROM THE NATIONAL READY MIX CONCRETE ASSOCIATION, INCLUDING 49 PLANTS ACROSS OREGON, WASHINGTON, IDAHO, AND MONTANA.
THE Y IS CONCRETE IN PORTLAND, SO HIGH IN EMISSIONS.
IT'S LARGELY DUE TO THE SHIPPING OF PORTLAND CEMENT AND FLAG LONG DISTANCES.
THE DEMAND OF CONCRETE FOR CONCRETE IN THE PACIFIC NORTHWEST OUTPACES THE AMOUNT OF SUPPLY THAT WE HAVE FOR FLAG A BYPRODUCT OF STEEL MANUFACTURING.
DO WE HAVE A MIX OF HALF REGIONAL MATERIALS AND HALF THAT ARE SHIPPED FROM ASIA.
SO OUR INITIATIVE ALSO COMPARED THE CITY OF PORTLAND PROCURED MIXES AND THE PRIVATE MARKET AND THE AVERAGE GWP OF EACH WERE FOUND TO BE SIMILAR, JUST A DIFFERENT SAMPLE SIZE OF THE VARIOUS STRENGTH CLASSES.
FOR EXAMPLE, THE CITY USES MORE MID, UM, STRENGTH CLASSES LIKE 3000 TO 4,000 PFI MIXES.
SO AS YOU CAN SEE, CONCRETE AND PORTLAND WAS TYPICALLY HIGHER THAN THAT REGIONAL AVERAGE LEADS.
THE NEXT ACTION WAS TO ANALYZE THE PRODUCTION DATA BY TAKING A SURVEY OF PRODUCTION VOLUMES AND ANALYZE IT.
WAIT A MINUTE, I, I SHARED THAT ALREADY.
UM, SORRY, LET ME PULL UP THESE NOTES OVER HERE.
SO THERE WERE SMALL STEPS TAKEN TO HELP BUILD THAT AWARENESS AND TO NORMALIZE SUSTAINABILITY METRICS.
HOLD ON, I'M STILL NOT ON THE RIGHT SLIDE.
SO THIS PAST CONCRETE CONSUMPTION WAS CAPTURED IN THE 2021 BPE FOR MOBILE MIX CONCRETE.
AND THIS DEFINES THAT BASELINE OR STARTING PLACE FOR SETTING THE CARBON EMISSIONS REDUCTION GOALS.
THE N-R-M-C-A WAS SET TO PUBLISH THE NEXT NATIONAL AND REGIONAL LIFECYCLE ASSESSMENT BENCHMARK REPORTS, VERSION 3.2 IN 2022.
SO OUR COMMITTEE WAITED TO SEE THE UPDATED PACIFIC NORTHWEST AVERAGE AND CONTINUED ON TO INTERIM STEPS AND PILOT TESTS, TESTS OF THE LOW CARBON CONCRETE.
UH, CARRIE, SORRY TO INTERRUPT, BUT WOULD IT BE POSSIBLE FOR YOU TO ZOOM IN AT ALL ON THIS? OR WILL THAT JUST MESS UP YOUR VIEW? MAYBE IT'S NOT.
[00:20:01]
YOU CAN ALSO ZOOM IN PERSONALLY BY HOLDING CONTROL AND SPINNING YOUR MOUSE WHEEL, BY THE WAY.THAT ONLY WORKS FOR THOSE ONLINE, WHICH I, I AM GONNA JOIN ONLINE SO THAT I CAN DO THAT.
AND I HAVE THE WEBEX WINDOW BACK UP, I THINK.
UM, ALRIGHT, SO WE ARE MOVING AHEAD TO SLIDE 10.
AT LEAST I HAVE A CHAT WINDOW.
THANK YOU FOR BEARING WITH ME.
SO I ALREADY MENTIONED, LET'S SEE, WE WERE CHATTING ABOUT THE BASELINE.
ADDED GW P TO APPROVED CONCRETE MIX DESIGN LIST.
SO YEAH, WE TOOK THESE SMALL STEPS TO BUILD THAT AWARENESS AND NORMALIZE SUSTAINABILITY METRICS.
AND AN EXAMPLE OF THIS IS ADDING A COLUMN FOR GWP OR APPROVED CONCRETE MIX DESIGN LIST FROM OUR MATERIALS TESTING LAB.
SO BEFORE HAVING A GWP REQUIREMENT, THIS NORMALIZED SEEING IT AS A METRIC.
ALRIGHT, SO STEP FOUR, UM, PILOT PROJECTS.
SO SINCE CONCRETE IS A FIELD CURED PRODUCT, IT WAS AGREED THAT SEVERAL ATTRIBUTES SHOULD BE TESTED TO BUILD THAT KNOWLEDGE, TRUST, AND FAMILIARITY.
AND WE KNEW THAT LOW CARBON CONCRETE MIGHT TAKE LONGER TO CURE.
SO WE TESTED IT ACROSS SEVERAL PROJECTS AND STRENGTH CLASSES.
AND THIS ALSO HIGHLIGHTED HOW CRITICAL IT IS TO ENGAGE WITH ENGINEERS, CONTRACTORS, FINISHERS AND CONCRETE PRODUCERS EARLIER IN PROJECT PLANNING.
UNDERSTANDING THESE PROPERTIES CAN HELP CONCRETE FINISHERS TO BETTER ANTICIPATE AND PLAN FOR ANY NEEDED CHANGES FROM THEIR STATUS QUO WHEN MOVING TO THOSE LOWER EMBODIED CARBON MIXES.
SO ALL LOWER CARBON MIXES USED IN THE PILOT PROJECTS MET CITY SPECIFICATION, BOTH IN TERMS OF PRE-APPROVAL AND CONFIRMED BY THE SUBSEQUENT COMPRESSIVE STRENGTH TEST.
THE LOWER CARBON MIXES FEATURED A COMBINATION OF TYPE ONE L CEMENTS AND UP TO 30% FLAG, WHICH MAY HAVE HAD VERY LITTLE IMPACT ON SET TIME AND EARLY STRENGTH.
THE FINISHING CREW FOUND THESE MIXES TO BE VERY EASY TO WORK WITH.
AND WHEN THE 50% SLIDE MIX WAS POURED IN JUNE FOR A DRIVEWAY APPLICATION WITH AN AMBIENT TEMPERATURE AT A, AT A POUR AT THE POOR TIME OF POUR BEING ABOUT 66 DEGREES FAHRENHEIT, THE CONCRETE INSTALLATION CREW REPORTED THAT THE DIFFERENCE IN SET TIME FROM THEIR USUAL 100% CEMENT MIX INCREASED FROM ABOUT TWO AND A HALF TO THREE AND A QUARTER HOURS WHEN THE CREW POURED THE SAME 50% SLAG MIX IN DECEMBER FOR ANOTHER DRIVEWAY WITH AN AMBIENT TEMPERATURE OF ABOUT 35 DEGREES AT THE TIME OF POOR.
THEY COMMENTED THAT THE SET TIME WAS EVEN LONGER AT ABOUT FIVE HOURS.
SO THESE STATUS QUO CONVENTIONAL MIXES USED DURING THE PILOT PROJECT WERE SIGNIFICANTLY OVER DESIGNED.
SO THIS MEANS THAT THE COMPRESSIVE STRENGTH OF THE MIX FAR EXCEEDED THE SPECIFICATION.
FOR EXAMPLE, THE STATUS QUO 100% CEMENT MIX FOR A 3000 PSI AT DAY 28 SPECIFICATION TESTED AT 4,800 TO 5,900 PSI IN LABORATORY CONDITIONS.
AND THE LOWER CARBON MIXES RANGE FROM 23 TO 50%.
I JUST FAST FORWARDED THROUGH MY SLIDES.
UM, THE LOWER CARBON MIXES RANGED FROM 23 TO 50% LESS THAN THE 100% CEMENT STATUS QUO MIXES.
DID YOU HEAR SOMEONE JUMP IN THERE? I DON'T THINK ANYONE SHOULD DO THIS ONE.
SO STEP FIVE IN 2022, WE PUBLISHED CARBON THRESHOLDS FOR THE DIFFERENT STRENGTH CLASSES AND ALL STUDY PROCURED PROJECTS NEEDED TO MEET THESE LIMITS
[00:25:01]
STARTING IN JANUARY OF 2023.AND THERE ARE TWO PATHWAYS OUTLINED HERE ON THIS SLIDE.
SO HOW DID WE DETERMINE WHERE TO SET THAT THRESHOLD? UM, WE KNEW IN 2019 THAT PORTLAND AREA CONCRETE WAS TYPICALLY HIGHER THAN THAT PACIFIC NORTHWEST AVERAGE, AND WE KNEW THAT WE SHOULD BE ABLE TO AT LEAST MEET THE AVERAGE BECAUSE IT MET THE SUPPLIERS WERE ALREADY ABLE TO PRODUCE THESE MIXED DESIGNS.
SO WE SET IT TO MATCH THAT 2022 PACIFIC NORTHWEST AVERAGE OF GLOBAL WARMING POTENTIAL FROM THE NATIONAL READY MIXED CONCRETE ASSOCIATION WITH A PLAN TO REVISIT THE GWP THRESHOLD ON A REGULAR BASIS TO DRIVE FOR FURTHER CARBON SAVINGS OVER TIME.
AND THANK YOU TO ANDREW FOR SHARING THE LINK TO THE FULL REPORTS ON REPORT ON THE PILOT STUDIES IN THE CHAT.
SO THIS TABLE HERE, WHICH I WILL ZOOM IN ON, HOPEFULLY THIS TABLE HERE, COMPARES OUR 2023 GWP THRESHOLD TO THE 2021 MOBILE MIX EPD, WHICH SHOWS THAT WE ARE SAVING UPWARDS OF 32% OF CARBON EMISSIONS IN OUR CONCRETE.
SO IN OTHER WORDS, UTILIZING THE LOW CARBON MIXES ON LARGE PROJECTS WILL HELP US TO ACHIEVE THAT GWP SAVINGS VERSUS THE SMALL MIXES WHERE IT'S MORE DIFFICULT TO PRODUCE THE PROJECT PRODUCT SPECIFIC EPDS AND TO SUPPLY THAT LOW CARBON CONCRETE.
UM, SO IN TERMS OF EXEMPTIONS, THERE ARE SOME REASONS THAT HAVE BEEN APPROVED, PRE-APPROVED FOR EXEMPTIONS, INCLUDING, UM, IF THE CONCRETE TOTALS OVER 50 CUBIC YARDS ACROSS THE ENTIRE PROJECT RATHER THAN WITHIN ONE SINGLE PORT AREA.
A FEW SPECIFIC COMPANIES PARTICIPATED IN THE ORIGINAL EPD DEVELOPMENT AND ARE SMALLER SUPPLIERS, AND EACH READY MIX PRODUCER HAS A DIFFERENT COMPANY AND SUPPLY CHAIN STRUCTURE.
SO DUE TO THIS, SOME FIND IT EASIER AND OR CHEAPER TO PRODUCE THOSE SUPPLEMENTARY CEMENTITIOUS MATERIALS FCMS REQUIRED TO PRODUCE LOW CARBON CONCRETE.
IF A PRODUCER IS SEEKING THIS EXEMPTION ROUTE, IT'S BEST TO SOLICIT THOSE ADDITIONAL BIDS FROM OTHER COMPANIES THAT WOULD LIKELY BE ABLE TO COMPLY.
SO OF COURSE, WITH ANYTHING NEW, WE HAVE TO MANAGE THE CHANGE AND THOSE EXPECTATIONS AND DO A LITTLE MIS BUSTING ALONG THE WAY.
SO THERE HAVE BEEN MISCONCEPTIONS ABOUT OUR GOALS AND WHAT WE REQUIRE WITHIN THIS INITIATIVE.
LIKE THE CITY OF PORTLAND WANTS WEAKER CONCRETE, FOR EXAMPLE.
UH, THE CITY IS NOT MANDATING THAT HIGH FLAG MIXES WERE USED, BUT THAT ALL CONCRETE USED ON OUR PROJECTS ARE BELOW THAT GLOBAL WARMING POTENTIAL THRESHOLD, WHICH TOOK EFFECT IN THE BEGINNING OF 2023.
AND THIS IS A VALUE THAT WAS DERIVED FROM THE EPD OF THE MIX DESIGN.
UM, AND WELL, WE, WE, WE WENT THROUGH SOME OF THESE DETAILS ALREADY, SO I WILL GO DOWN TO MISCONCEPTION NUMBER TWO.
UM, THAT IT IS TRUE THAT HIGH SLIDE MIXES CAN TAKE LONGER TO ACHIEVE THEIR FINAL STRENGTH, BUT THAT IT'S NOT A HUGE DIFFERENCE.
OTHER TYPES OF LOW CARBON MIXES LIKE TYPE ONE L CEMENT ACHIEVE STRENGTH SIMILARLY TO THOSE TRADITIONAL MIXES.
NUMBER THREE, DOESN'T LOW CARBON CONCRETE TAKE LONGER TO SET UP AND THERE CAN BE AN INCREASE IN THE SET TIME, BUT IT SHOULDN'T BE TOO DRASTIC.
THIS CAN ALSO BE OFFSET WITH THESE OF ACCELERATORS IN THE MIXES.
AND THERE ARE MANY VARIABLES THAT CAN IMPACT SET TIMES, UM, INCLUDING TEMPERATURE, HUMIDITY, WIND, ADMIXTURES, ET CETERA.
AND THIS WAS EVALUATED DURING MANY OF THOSE PILOT PROJECTS THAT THE CITY PERFORMED.
NUMBER FOUR, WILL THE COST OF LOW CARBON CONCRETE BE HIGHER? AND WHAT WE HAVE HEARD IS THAT THE COST IS COMPARABLE.
TYPE ONE L CEMENT IS ABOUT THE SAME AS CONVENTIONAL TYPE ONE TO TWO CEMENT.
AND IT'S IMPORTANT TO REMEMBER THAT SUPPLY CHAIN ISSUES AND OTHER FACTORS CAN CAUSE UNPREDICTABLE PRICES.
CAN I, UM, UM, SO WE'VE, YEAH, SORRY, CARRIE, IT'S ANDREW.
JUST TO JUMP INTO, I WANT TO ADD TO THAT, LIKE, UH, YOU KNOW, ONE OF THE, YOU FOLKS MIGHT ALREADY KNOW THIS, BUT ONE OF THE THINGS THAT WAS REALLY IMPORTANT TO US WAS TO SPECIFY THE GWP LIMITS AND 'CAUSE IT'S A PERFORMANCE BASED SPEC AND
[00:30:01]
NOT, UH, SAY LIMIT HOW MUCH CEMENT THEY CAN PUT IN THEIR CONCRETE OR EVEN REQUIRE THAT THEY USE TYPE ONE L.WE HAVE NOTHING IN OUR SPECIFICATIONS THAT REQUIRES USE OF TYPE ONE L CEMENT.
IT'S JUST, UM, BECOME REALLY POPULAR.
AND THAT'S A DECISION THAT THE SUPPLIERS ARE MAKING.
SO I THINK THE CITY OF PORTLAND AND OTHER MUNICIPALITIES HAVE HAD A TENDENCY TO WRITE SPECIFICATIONS LIKE, WELL, YOU KNOW, WE, WE WANNA LOWER SLUMP, SO WE'RE GONNA LIMIT THE AMOUNT OF WATER THEY CAN PUT IN.
WELL, WE DON'T WANNA DO THEIR MIX DESIGN FOR THEM, LET'S JUST STICK TO PERFORMANCE BASED SPECIFICATIONS AND LET THEM COME UP WITH HOW THEY'RE GONNA ACHIEVE THAT.
UM, AND THERE MAY BE, UH, THINGS THAT HAVEN'T BEEN INNOVATIVE INNOVATED YET THAT THEY CAN UTILIZE.
SO, UM, BE CAREFUL IF, UM, WHEN WRITING SPECIFICATIONS THAT YOU STICK TO PERFORMANCE-BASED SPECIFICATIONS AND, AND NOT, UH, UH, OTHER THINGS LIKE REQUIRING TYPE ONE L CEMENT OR LIMITING THEIR CEMENT CONTENTS.
SO JUST WANTED TO THROW THAT OUT THERE.
UM, WE'VE, WE'VE GOT JUST A COUPLE SLIDES LEFT, BUT PLEASE JUMP IN.
UM, WE'VE GOT ANOTHER OPPORTUNITY FOR LAUREN, IF YOU WOULD LIKE TO WEIGH IN.
UM, THERE ARE MORE DETAILS ON COST IMPACTS SHOWN HERE FROM A STUDY COMPLETED BY LAUREN ZIMMERMAN, OUR ANALYSTS WHO'VE BEEN ENGAGED WITHIN THIS EFFORT FROM THE BUREAU OF PLANNING AND SUSTAINABILITY.
WHO, WHO IS HERE WITH US TODAY? LAUREN, DID YOU WANNA ADD ANY DETAILS HERE? UH, JUST TO SAY THAT WHEN I SURVEYED OUR LARGE COMPANIES, YOU KNOW, FOLKS CAN'T GIVE YOU THE PRICE OF WHAT IT'S GOING TO BE BECAUSE EVERY PROJECT IS UNIQUE.
SO I APPROACHED THAT WITH A LITTLE BIT MORE OF A RANGE METHODOLOGY AND THEY SAID TYPICALLY THEY ARE ABLE TO ACHIEVE OUR GWP REQUIREMENT WITH ANYWHERE FROM A ZERO TO 5% PRICE INCREASE FOR THE PROJECT.
AND SINCE THE, YOU KNOW, CONCRETE IS JUST ONE COMPONENT OF THE CONSTRUCTION PROJECT, THAT WAS USUALLY PRETTY EASY TO ABSORB INTO THE TOTAL CONSTRUCTION COST.
APPRECIATE THOSE ADDITIONAL DETAILS.
SO IN TERMS OF CONSIDERATIONS FOR CONCRETE GWP REDUCTIONS, UM, AS DISCUSSED ALREADY, MANY ENGINEER SPECIFY REQUIREMENTS THAT ARE OVER-ENGINEERED FOR THE PURPOSE, LARGELY DUE TO STANDARD OR BOILERPLATE SPECIFICATIONS.
SO READY MIX SUPPLIERS WOULD LIKE MORE DETAILS ON HOW TO ACHIEVE PERFORMANCE.
SO THEY KNOW WHAT PARAMETERS THEY CAN TOGGLE.
IT'S AIMING FOR A PARTICULAR GWP REDUCTION OR TARGETING AN EPD.
AND BY ALLOWING A PROJECT AVERAGE OPTION IN CONCRETE GWP REQUIREMENTS, YOU CAN BALANCE THOSE HIGH CARBON MIXES AND LOW CARBON MIXES ACROSS DIFFERENT PORES ON A PROJECT.
AND LARGE PRODUCERS CAN TEST NEW MIXES IN AS FEW AS 30 DAYS, UM, OR 60 DAYS FOR AN EARLY STRENGTH MIX DESIGN FOR SMALLER SUPPLIERS, IT'S IMPORTANT TO WORK ON ESTABLISHING THAT COMMON LOW GWP MIX AND THAT PROCESS COULD TAKE SIX MONTHS.
SO IT'S GOOD TO MAP AND INCLUDE YOUR PRODUCERS BY HAVING MULTIPLE NEARBY PRODUCERS.
UM, THAT'S A REALLY GREAT OPPORTUNITY FOR COMPETITION AND INNOVATION.
SO THIS SLIDE IS HERE AS A TAKEAWAY FOR YOU ALL TO REVIEW LATER ONCE ALL OF THIS INFORMATION HAS SET IN.
UM, BUT THE MAIN TAKEAWAYS ARE TO START EARLY WITH THE LOW CARBON CONCRETE ADVISORY GROUP THAT INCLUDES LOCAL PRODUCERS TO TAKE THE STEPS OVER TIME SO PRODUCERS AND SPECIFIERS HAVE TIME TO DEVELOP THE AWARENESS, KNOWLEDGE, AND KNOWLEDGE AND TO ADJUST THEIR PROCESSES AND TO DETERMINE A POINT PERSON WHO CAN TAKE FEEDBACK ABOUT THE PROGRAM AND PROCESSES AND INTEGRATE IT INTO THE EVOLUTION OF A POLICY AND PROGRAM OVER TIME.
SO WITH THAT, WE HAVE MADE IT TO THE END OF OUR PRESENTATION.
SO THANK YOU SO MUCH FOR LISTENING.
THANKS AGAIN, LAUREN, FOR PROVIDING THIS GREAT PRESENTATION AS A BASE THAT I CAN PICK UP AND HOPEFULLY DO JUSTICE TOO.
UM, SO AT THIS POINT I WILL OPEN THE FLOOR FOR Q AND A AND WELCOME CONTINUING THE CONVERSATION.
SO PLEASE FEEL FREE TO REACH OUT VIA MY EMAIL ADDRESS SHOWN ON SCREEN HERE.
UM, AND AS MENTIONED AND AS THEY'VE ALREADY JUMPED IN, WE'VE GOT A FEW KEY PROJECT TEAM MEMBERS HERE TO ANSWER QUESTIONS.
SO WITH THAT, I WILL OPEN UP THE FLOOR.
AND TEAM, THIS IS, UH, GREAT TO, TO SEE A, A CITY THAT IS, IS MOVING THROUGH AND HAS DONE THE STEPS THAT, UM, THAT WE NEED TO DO HERE.
WHO HAS QUESTIONS OR COMMENTS ON THIS?
[00:35:03]
AND I CAN'T SEE EVERYBODY ONLINE, SO FEEL FREE TO JUST COME OFF MUTE IF YOU'RE ONLINE AND WANNA SAY SOMETHING.HEY, KIVA, I'VE, I'VE GOT A FEW QUESTIONS.
UM, WELL FIRST OF ALL, THANK YOU, UH, CARRIE.
UM, YEAH, YOU GOT TWO ROUNDS OF APPLAUSE, UM, IN, IN THIS HOUSEHOLD.
UM, I'M CURIOUS ABOUT WHAT THE PILOT TESTING TIMELINE LOOKED LIKE.
I THINK IN YOUR SUMMARY SLIDE, IT MADE IT SEEM LIKE MAYBE SOME OF THESE TEST POURS CAME LATER IN THE PROCESS, BUT COULD YOU SPEAK TO THAT, ANDREW, MAY I DEFER TO YOU ON THIS QUESTION? YOU SHARED THE REPORT LINK IN THE CHAT AND OR JOSH OR LAUREN? YEAH, I'LL, I'LL GO.
UM, I DON'T HAVE EXACT DATES IN FRONT OF ME.
I KNOW THE, SO THE FIRST ONE WE DID WAS IN 2020, UM, AND I THINK COVID MAY HAVE SLOWED THINGS DOWN, BUT, UM, AND THEN, UH, WE DID TWO MORE THE NEXT YEAR IN 2021 AND THEN A COUPLE MORE IN 2022.
SO IT WAS OVER THE COURSE OF TWO AND A HALF YEARS.
UM, AND THAT WAS BE, SOME OF THAT I THINK WAS BECAUSE WE HAD, WE HAD DECIDED, OH, WELL, YOU KNOW, WE DID A LOT OF EXPERIMENTING WITH DIFFERENT, 'CAUSE THERE'S SO MANY VARIABLES, YOU KNOW, USING TYPE ONE TWO CEMENT AND TYPE ONE L USING 0% SLAG, 30% SLAG, 50% SLACK USING ACCELERANTS, UM, AT DIFFERENT DOSAGES USING HOT WATER INSTEAD OF COLD WATER, YOU KNOW, DOING IT IN THE WINTER VERSUS THE SUMMER.
SO WE REALLY WANTED TO CAPTURE ALL OF THOSE THINGS.
AND THE LINK I SHARED IN THE CHAT ACTUALLY HAS ALL OF THE RESULTS OF THAT.
AND EVEN LIKE, UM, DOSAGING THAT SUPPLIERS CAN USE AS THE GUIDELINES, LIKE, HEY, WHEN WE ADDED THIS MOST ACCELERANT IT, YOU KNOW, WE HAD INSTANCES FOR EXAMPLE WITH THE 50 TYPE ONE L CEMENT AND THEN 50% SLAG THAT USE BOTH ACCELERATE AND HOT WATER IN DECEMBER.
AND IT ACTUALLY SET UP TOO FAST.
SO IT WAS LIKE, OKAY, YOU CAN REALLY MAKE THIS STUFF, DO WHATEVER YOU WANT.
UM, SO THERE'S SOME, EVEN SOME, THE DOSAGES THAT WERE USED IN THOSE PILOT STUDIES ARE JUST A GOOD RESOURCE FOR SUPPLIERS BY THE WAY.
THROWING THAT OUT THERE WHILE IT'S ON MY MIND.
BUT, UM, TO ANSWER YOUR QUESTION, IT WAS REALLY, IT WAS, IT WAS RIGHT AFTER WE STARTED REQUIRING THE EPDS, BUT SET NO LIMITATIONS ON THE GWP.
UH, WE DID OUR FIRST PILOT PROJECT AND THEN, BUT THEN IT WENT ON FOR ANOTHER TWO AND A HALF YEARS DOING A COUPLE OF THEM.
AND, UM, AND IN THOSE PILOT PROJECTS, I KNOW THIS WASN'T PRETTY QUESTION, WE, UM, LOOKED AT, UH, WELL ALL THE FRESH PROPERTY TESTS, YOU KNOW, THAT YOU NORMALLY DO WHEN YOU'RE TESTING CONCRETE SLUMP, AIR UNIT, WEIGHT, TEMPERATURE, UH, COMPRESSION TESTING, BUT ALSO, UM, WE DID VISUAL INSPECTION OF THE CONCRETE STRUCTURES, UM, THREE MONTHS, SIX MONTHS, NINE MONTHS, AND 12 MONTHS AFTER POURING.
UM, I ACTUALLY WAS THE ONE WHO WENT OUT AND DID ALL THAT.
AND THEN, UM, WE ALSO SURVEYED THE CONCRETE FINISHERS AFTERWARDS, LIKE, HOW WAS WORK, HOW WAS IT WORKABILITY? HOW DID IT COMPARE TO THE MIXES YOU USED TO THINGS THAT ARE BETTER, THINGS THAT ARE WORSE.
AND ALL OF THAT'S MOUNTAIN OF DATA IS IN THAT LINK I SHARED.
UM, BUT YEAH, SO ALL THROUGHOUT THE PROCESS, I GUESS TO ANSWER YOUR QUESTION, THANKS THAT, THAT SOUNDS POTENTIALLY LIKE A LOT OF WORK.
SO COULD YOU JUST TELL ME A LITTLE BIT MORE ABOUT LIKE YEAH, WHO DECIDED THAT THAT WORK WAS GONNA GET DONE? LIKE WHAT DEPARTMENT DID IT GET HOUSED IN? LIKE, YOU KNOW, WAS THAT EXTRA STAFF TIME, WAS THIS, WERE THEY LIKE, HEY, LIKE JUST POUR SOME CONCRETE AND IT'S OVERTIME, LIKE, CAN YOU TALK ME THROUGH THAT? YEAH.
UM, THAT WAS, UH, PLEASE CORRECT ME IF I'M WRONG, BUT, UM, CARRIE, UH, BUT THAT WAS ACTUALLY, UH, CARRIE'S PREDECESSOR STACY, WHO'S IN THE PROCUREMENT, UH, UH, SIDE OF THINGS FOR THE, UM, HAD SOME MONEY EARMARKED TO BASICALLY PAY FOR, UH, ALL OF THIS.
AND, AND I DON'T KNOW ABOUT THE CITY OF AUSTIN, BUT WE HAVE OUR OWN INTERNAL MATERIALS TESTING LAB.
UM, SO WE DIDN'T HAVE TO USE A PRIVATE COMPANY, SO THAT HELPED TOO.
UM, I'M ACTUALLY IN THE MATERIALS TESTING LAB, THAT'S MY ROLE.
UM, SO THAT HELPED WITH COSTS.
BUT SO THIS WAS SOMETHING THAT YOU WERE GIVEN TO TAKE ON, ON TOP OF OTHER JOB RESPONSIBILITIES OR WAS PART OF A SUITE OF OTHER JOB RESPONSIBILITIES? IS THAT YEAH.
SO, UM, CITY PORTLAND HAS OUR MATERIALS TESTING LAB.
WE PERFORM QUALITY ASSURANCE TESTING ON CONSTRUCTION PROJECTS THAT ARE FUNDED BY THE CITY ALL OF THE TIME.
IT'S OUR FULL, WE HAVE SEVERAL PEOPLE HERE WORK HERE, IT'S OUR FULL-TIME JOB.
[00:40:02]
LIKE, HEY, WE'RE ALSO GONNA HAVE YOU GO TEST THIS CONCRETE AND DO SOME INSPECTIONS AFTERWARDS.AND IT'S LIKE, OKAY, ADD IT TO THE PILE OF WORK.
SO THIS WAS NOT SOMEBODY'S DEDICATED JOB, IT WAS JUST THROWN INTO OUR REGULAR WORKFLOW.
'CAUSE WE'RE DOING IT EVERY DAY FOR OTHER THINGS.
SO WHEN YOU'RE TALKING SPECIFICALLY ABOUT PROCUREMENT EARMARKING MONEY, YOU'RE TALKING ABOUT MONEY TO BUY THE MATERIALS AND, AND DO THE POS? UM, NO, THE PORES ALREADY NEEDED TO HAPPEN.
UM, IT WAS JUST, HEY, LET'S USE THIS LOW CARBON CONCRETE INSTEAD OF THE REGULAR STUFF AND DO SOME INTERVIEWS AFTERWARDS AND SOME INSPECTIONS AFTERWARDS.
SO IT WASN'T LIKE WE, WE, LIKE, IT WAS LIKE SIDEWALKS AND A DA RAMPS AND OTHER THINGS.
UM, SO IT WASN'T LIKE WE WERE JUST BUILDING THINGS THAT DIDN'T NEED TO BE BUILT.
THEY WERE GONNA BE BUILT ANYWAY.
WE JUST, HEY, THAT CORNER RIGHT THERE THAT TOOK A SIDEWALK, WE'RE GONNA DO LOW CARBON CONCRETE INSTEAD OF THE TYPE ONE TWO STUFF.
I, I THINK ON A SIMILAR NOTE, AND MAYBE THIS IS FOR CARRIE OR ANYONE ELSE IS, WHAT WERE THE BARRIERS TO, TO DOING THIS? I WOULD LOVE TO LEAN ON THE INSTITUTIONAL KNOWLEDGE THAT WE HAVE FROM FOLKS WHO ARE INVOLVED BEFORE MY SIGN.
UM, JOSH, FEEL FREE TO CHIME IN HERE, BUT, UM, SO MY ROLE WAS THE INSPECTION AND TESTING SIDE OF THINGS.
UM, SO I DON'T KNOW THERE, THERE MAY BE BARRIERS THAT I'M OBLIVIOUS TO, BUT THE BIGGEST BARRIER THAT I SAW WAS, UM, RESISTANCE FROM SOME FOLKS FOR PRIVATE SUPPLIERS.
UM, SOME OF THEM WERE ON BOARD AND EAGERLY WERE HAPPY.
CON CONTRIBUTED QUITE A GREAT DEAL ON THE COMMITTEE.
AND WE HAD OTHER ONES WHO WERE LIKE, GLOBAL, WARM, GLOBAL, WARMINGS A HOAX, AND YOU GUYS ARE A BUNCH OF NUTS AT THE CITY.
UM, SO, YOU KNOW, SO IT WAS, YEAH.
UM, SO WE HAD ONE OF OUR BIG SUPPLIERS TOO, THEIR QUALITY PATROL MANAGER WAS REALLY KIND OF DRAGGING HIS FEET AND FIGHTING US EVERY STEP OF THE WAY.
UM, BUT SOME OF THE OTHER ONES WERE ON BOARD, SO THEY WEREN'T ALL LIKE THAT, BUT WE DEFINITELY SAW THAT AND THAT WAS THE BIGGEST BARRIER THAT I RAN INTO.
JOSH, UM, DID YOU YEAH, UM, WELL SAID, UM, ANDREW.
UM, SO BARRIERS, UH, DEFINITELY THERE WAS A LOT OF, UH, KIND OF PUSHBACK AT THE BEGINNING, UH, FROM BASICALLY FROM CONTRACTORS.
YOU KNOW, IF, IF, WELL IF THIS IS GONNA TAKE MORE TIME TO SET UP INITIALLY, THEN YOU KNOW, THAT'S GONNA COST, YOU KNOW, MORE TO, UH, PRODUCE THESE, UH, THESE, UH, YOU KNOW, SIDEWALKS OR A DA RAMPS.
BUT, BUT FORTUNATELY, UH, I THINK AS WE, UH, POINTED OUT EARLIER, ALL OF OUR, UH, BASICALLY ALL OF OUR, UM, SUPPLIERS, CONCRETE SUPPLIERS IN THE METRO AREA ARE ALL ON BOARD.
SO IT'S, IT'S KIND OF HARD FOR OUR CONTRACTORS NOT TO HAVE A LOW CARBON CONCRETE MIX DELIVERED.
IT'S PRETTY MUCH ALL THAT'S AVAILABLE.
UM, SO, UM, BUT UH, I THINK IT, IT'S WORKED OUT REALLY GOOD.
I REALLY ENCOURAGE YOU TO LOOK AT, UH, FOLLOW THAT LINK TO, UH, THE REPORT THAT, UH, ANDREW PUT UP THERE IN THE CHAT.
UM, AND IF YOU EVER HAVE ANY QUESTIONS, YOU KNOW, FEEL FREE TO CONTACT EITHER ONE OF, UH, LAUREN, CARRIE, ANDREW, MYSELF.
I THINK I PUT MY EMAIL IN THERE SOMEWHERE.
UM, ANNA, DID YOU HAVE OTHER QUESTIONS? IF NOT, I HAVE A, A COUPLE AS WELL.
WHY DON'T YOU TAKE OVER FOR A BIT,
UM, ONE OF THE, THE THINGS I THINK YOU MENTIONED, CARRIE, WAS THAT THERE, OR MAYBE IT WAS ANDREW, UM, THAT THERE WAS BUDGET ALLOCATED FOR THE TESTING KIND OF PHASE OF THIS.
UM, I THINK YOU ALSO MENTIONED THAT THERE WAS SOME INCREASE IN COST.
UM, CAN YOU TELL US ANYTHING ABOUT THE NUMBERS, UH, IN TERMS OF WHAT WAS ALLOCATED FOR TESTING AND WAS THAT, HOW MANY, HOW LONG WAS THAT UNDERWAY? LIKE HOW, HOW MANY YEARS DID YOU NEED BUDGET FOR THAT? THANK YOU, ANDREW.
I THINK YOU SHARED THOSE DETAILS.
SO I'M, I'M CURIOUS IF YOU HAVE INSIGHTS TO SHARE.
OH, I MENTIONED IT, BUT I DON'T HAVE NUMBERS.
I MEAN THE, THE, THE, IT STARTED IN 2019 IN THE PILOT OF PROJECT.
[00:45:01]
LAST PILOT OF PROJECT WE DID WAS 2022.SO THAT WAS A THREE YEAR PERIOD.
UM, I DON'T KNOW, I DON'T HAVE EXACT NUMBERS THOUGH.
EVEN IF WE DID THAT WOULD'VE BEEN PRE COVID, SO THEY WOULDN'T BE, YOU KNOW, I WOULDN'T TAKE THOSE TO THE BANK, BUT I'M SURE IT WAS, IT COULDN'T HAVE BEEN VERY MUCH, I MEAN, A FEW THOUSAND DOLLARS BECAUSE AGAIN, THESE WERE STRUCTURES THAT WERE ALREADY GOING TO BE BUILT.
SO, UM, THERE WAS JUST SOME EXTRA TESTING INVOLVED, WHICH WAS A COUPLE HUNDRED DOLLARS PER PO AND SOME INSPECTIONS.
SO, I MEAN, JUST THE TESTING AND INSPECTION, EVERYTHING COULDN'T HAVE COST MORE, YOU KNOW, MORE THAN 10 GRAND.
UM, AND BECAUSE THE CITY'S BUILDING SO MANY A DA RAMPS, UM, 'CAUSE THAT'S A RESOLUTION TO A LAWSUIT FROM A FEW YEARS AGO.
UM, IT, IT WAS ALREADY, THE FUNDING WAS ALREADY THERE FOR THE, FOR THE CONSTRUCTION.
IT WAS JUST SOME ADDITIONAL TESTING THAT NEEDED TO BE PAID FOR.
BUT UNFORTUNATELY I DON'T HAVE EXACT NUMBERS BECAUSE I WASN'T PART OF THAT.
JOSH JUST SAID IN THE CHAT TOO THAT HE THINKS STACY GOT A GRANT TO PAY FOR IT, WHICH WOULDN'T SURPRISE ME, BUT I JUST DON'T HAVE THOSE DETAILS.
BUT IT SOUNDS, SOUNDS PRETTY MINIMAL IN, IN TERMS OF COST.
IF, IF YOU'RE GONNA DO PILOT PROJECTS, YOU KNOW, PICK SOMETHING THAT'S ALREADY GONNA BE POURED AND JUST, UH, LET THEM USE SOME LOW CARBON CONCRETE SOMETHING THAT MIGHT NOT NECESSARILY COMPLY WITH YOUR SPECIFICATIONS IN TERMS OF WHATEVER.
I, I'M NOT FAMILIAR WITH CITY AUSTIN SPECS, BUT YOU KNOW, WE HAD GIVEN THEM LEGAL, LIKE FOR INSTANCE, WE HAVE A SPEC THAT'S, HEY, DON'T USE MORE THAN 30% SLACK.
IT'S LIKE, WELL, YOU KNOW WHAT, GO AHEAD AND USE 50%.
SO WE HAD TO BASICALLY JUST SWAP OUT THE MIXES THAT THEY WERE ALREADY GONNA USE
YEAH, THAT'S, UH, I GUESS SOMETHING THAT I THINK WE NEED TO LEARN MORE ABOUT.
AND ALSO, I DON'T KNOW IF WE HAVE THAT TESTING LAB OR IF THERE'S MAYBE OPPORTUNITY TO HAVE SOME SORT OF PARTNERSHIP WITH UT.
I'M SURE THEY HAVE A TESTING LAB THERE.
UM, YOU, IT SOUNDED LIKE YOU COULD YEAH, GO AHEAD.
OH, I WAS JUST GONNA SAY, YOU COULD HIRE A PRIVATE FIRM, UM, TO PERFORM THAT TESTING IF YOU GUYS DON'T HAVE A LAB INTERNALLY.
UM, BUT, UH, YOU KNOW, OBVIOUSLY THAT'S GONNA MAKE THE COST GO UP.
DO YOU HAPPEN TO KNOW WHAT THAT USUALLY COSTS? UM, IN OUR AREA, UH, PER CONCRETE POUR A PRIVATE COMPANY'S CHARGING IN THE NEIGHBORHOOD OF $400 PER POUR.
SO DON'T, YOU KNOW, THERE'S, I I DON'T KNOW IF IT'S SIMILAR IN AUSTIN OR NOT, BUT IT, IT'S, IT'S NOT TERRIBLY EXPENSIVE IN THE, IN THE TERMS OF THE COST OF CONSTRUCTION.
IT'S A, A COUPLE HUNDRED DOLLARS USUALLY ISN'T A LOT.
UM, I GUESS THE LAST QUESTION I HAD WAS, IT SOUNDED LIKE YOU DID HAVE SOME GOOD SUPPORT FROM THE INDUSTRY.
UM, AND I'M CURIOUS WHO DID THAT CONVENING, UM, IF THAT WAS DONE THROUGH THE PURCHASING, YOU KNOW, WAS THAT YOUR PREDECESSOR, CARRIE, OR WHO, WHO GOT THOSE PEOPLE TOGETHER? WHO, WHO ORGANIZED? THAT'S, THAT'S MY UNDERSTANDING IS THAT STACY WAS THE PRIMARY CHAMPION.
UM, BUT LAUREN, I KNOW YOU'VE ENGAGED WITH N-R-M-C-A-A LOT, UM, AND I MEAN ANDREW AND JOSH ALSO, SO I DON'T KNOW IF YOU HAVE ANY INSIGHTS AROUND WHETHER OR NOT THERE WERE, YOU KNOW, THOSE KEY CONNECTORS OR, YOU KNOW, IT WOULDN'T SURPRISE ME IF IT WAS STACY
JORDAN LED A LOT OF THE TECHNICAL CONVENING.
HE HAD A LITTLE MORE TECHNICAL KNOWLEDGE THAN STACY.
AND IT WAS THOSE TWO IN PARTNERSHIP, I GOT EVERYONE TOGETHER IDENTIFIED WHICH PRODUCERS TO INVOLVE, WHO TO BRING INTO THE COMMITTEE, AND THEN KIND OF BROKE UP THE WORK ON THE EPD REQUIREMENTS VERSUS THE PILOTING AND THAT TYPE OF THING.
SO IT SOUNDS LIKE IT WAS THE TWO OF THEM VARIED PART-TIME IN THEIR ROLES.
AND, AND I, I WANT TO ADD TOO, JORDAN WAS INSTRUMENTAL, UM, IN PROVIDING, UH, KIND OF A COMMUNITY OUTREACH TO THE LOCAL SUPPLIERS AND BEING A RESOURCE FOR THEM.
UH, AGAIN, JORDAN WORKED FOR THE DEQ, UM, AND HE STILL WILLING TO BE A RESOURCE.
[00:50:01]
UH, BUT HE, YOU KNOW, THERE WERE A LOT OF SUPPLIERS WHO WERE LIKE, WHAT THE HECK IS AN EPD? WHEN WE FIRST STARTED THIS, THEY DIDN'T, THEY WERE LIKE, I DON'T KNOW WHAT YOU GUYS ARE ON ABOUT.SO HE, HE HAD, YOU KNOW, WE DID OUR OWN TRAINING AND, AND CONVERSATIONS AND MEETINGS SUCH AS THIS, BUT HE WOULD HELP THEM OUT WITH, UM, GETTING EPDS FOR THEIR MIX DESIGNS AND HOW THEY CAN DO THOSE CALCULATIONS AND THEY NEED TO BE THIRD PARTY VERIFIED.
SO THE COST OF THAT, AND I DON'T KNOW HOW HE DID IT, BUT HE ALSO WAS ABLE TO GET THEM SOME FUNDING TO HELP PAY FOR THEIR EPDS SOME VIA GRANT.
UM, 'CAUSE THAT WAS CONCERNED.
THEY'RE LIKE, I DON'T WANNA PAY SOMEBODY TO VERIFY AN EPD THING.
UM, SO JORDAN, JORDAN WAS REALLY A RESOURCE FOR THE SUPPLIERS.
UM, YEAH, HIM AND STACY GOT EVERYONE TOGETHER, BUT, UM, JORDAN WAS JUST ALONG THE PROCESS, UH, WORKED VERY CLOSELY WITH THE SUPPLIERS.
UM, SO I WOULD, AND HE'S STILL WILLING TO, AS FAR AS I KNOW, HE'S STILL WILLING TO, TO DO THAT.
SO, UM, IF YOU DON'T ALREADY HAVE HIS INFO, YOU MIGHT WANNA REACH OUT TO HIM WHEN YOU EMBARK ON THIS JOURNEY.
UM, IF, IF YOU'RE NEEDING SUPPORT, THANK YOU FOR THAT.
ANY OTHER QUESTIONS? WE PROBABLY SHOULD.
DO I, YEAH, I HAVE A, GO AHEAD, CHRIS.
UH, WELL, I APPRECIATE THE, THE PRESENTATION AND I THINK, CARRIE, YOU WERE TALKING A LITTLE BIT ABOUT THIS FIRST QUESTION THAT I HAVE AT THE BEGINNING IN TERMS OF, UH, LIKE CONCRETE BEING, BEING A HIGH EMITTER FOR IN, IN REGARDS TO CONSTRUCTION EMISSIONS.
I WAS JUST CURIOUS TO, TO GET A LITTLE BIT PERSPECTIVE OF, YOU KNOW, THE, THE, THE, I GUESS THE CONCRETE EMISSIONS IN TERMS OF LIKE OVERALL CITY EMISSIONS.
UH, DO YOU GUYS HAVE A, A LITTLE BIT OF A SENSE ON THAT? UH, WHAT WAS, WHAT WAS, UH, YEAH, A LITTLE BIT MORE, MORE THE, YOU KNOW, THE MOTIVATION BEHIND THAT IN TERMS OF YEAH, OVERALL EMISSIONS AND HOW, LIKE, HOW MUCH OF A PORTION IS THAT TO OVERALL EMISSIONS? YEAH, THANK YOU.
I'M GONNA SHARE A LINK IN THE CHAT, UM, TO THE STUDY THAT HAPPENED IN 2016.
UM, I AM GUESSING THAT THOSE DETAILS ARE NOT INCLUDED WITHIN THIS EXECUTIVE SUMMARY, BUT THIS WAS THE SOURCE THAT SHOWED US ALL OF THAT INFORMATION.
UM, I THINK THEY REVIEWED 160,000 LINES OF SPEND DATA, UM, ACROSS 8,000 SUPPLIERS TOTALING, I THINK $375 MILLION FOR THE SPEND WITHIN THE FISCAL YEAR OF 2014 TO 15.
UM, SO THEY, THEY HAD THEIR, YOU KNOW, METHODOLOGIES TO CALCULATE GLOBAL WARMING IMPACTS, TOXICS EXPOSURE, UM, AND A WHOLE SUITE OF DIFFERENT WAYS TO LOOK AT ENVIRONMENTAL IMPACTS.
UM, SO IT WAS THROUGH THIS STUDY THAT WE IDENTIFIED CONCRETE AS ONE OF THE TOP EMITTERS YOUTH DENSITY PROJECT.
I'LL DEFINITELY, UH, TAKE A LOOK AT THAT.
YEAH, AND I'M CURIOUS, I'M NOT TOO FAMILIAR WITH, WITH, UH, THE CONCRETE EMISSIONS, BUT WHENEVER WE'RE TALKING ABOUT LOW, LOW CONCRETE, UH, LIKE WHERE, WHERE ARE THE REDUCTION IN EMISSIONS COMING FROM? I KNOW THERE WAS SOME DISCUSSIONS ABOUT USING, YOU KNOW, SOME SLAG, YOU KNOW, AS PART OF THE MIX.
UH, WOULD THAT BE BECAUSE SLACK IS PART OF A, KIND OF LIKE A BYPRODUCT OF A DIFFERENT PROCESS AND THEREFORE IN SOME WAY YOU'RE KIND OF REUSING IT, UH, AND THAT KIND OF MAKES IT, UH, LESS CARBON INTENSIVE.
IF, IF SOMEBODY CAN ELABORATE ON THAT, THAT'LL BE, THAT'LL BE GREAT.
I, I'LL DEFER TO THE EXPERTS HERE.
UM, BUT IT SOUNDS LIKE IT'S RELATED TO THAT SHIPPING OF PORTLAND CEMENT AND FLAG PRIMARILY, BUT IS A BYPRODUCT ADDITIONAL INSIGHTS.
YEAH, SL IS A BYPRODUCT FROM, FROM STEEL PRODUCTION, SO IT'S ESSENTIALLY A WASTE MATERIAL THAT'S BEING RECYCLED.
UM, SO IT WISHES WHY IT, IT HAS A LOWER GWP THAN PORTLAND CEMENT.
SO YOU GUYS, SO WE USE MORE OF IT IN YEAH.
SO WHEN USE MORE OF IT CONCRETE, YOU'RE LOWERING YOUR G GWP OF THE OVERALL MIX.
SO YOU'RE KIND OF CONSIDERING THAT THERE'S NO REALLY EMISSIONS FROM PRODUCING THE SLACK JUST BECAUSE IT'S THE VERY BYPRODUCT
[00:55:01]
OF THE STEEL INDUSTRY.IT'S A RECYCLED MATERIAL, ESSENTIALLY.
YEAH, AND I GUESS THE LAST QUESTION THAT I HAVE IS, UH, MAYBE THIS WAS TOUCHED A LITTLE BIT BEFORE, BUT YOU KNOW, FOR CITIES, UH, YOU KNOW, SUCH AS CITY OF AUSTIN, IF, YOU KNOW, LIKE JUST KIND OF BEST PRACTICE OR RECOMMENDATIONS TO SPEED UP, UH, THE PROCESS IN TERMS OF ESTABLISHING A PROGRAM LIKE THAT.
I DON'T KNOW IF THERE'S KEY IDEAS OR, OR THINGS THAT YOU GUYS WOULD RECOMMEND.
UH, I'LL GO FIRST, BUT MAYBE SOMEONE ELSE WANTS TO CHIME IN.
UM, IT'S, IT'S, IT REALLY IS, UM, KINDA UP TO YOU GUYS HOW FAST OR SLOW YOU WANT TO GO.
WE MADE A DELIBERATE CHOICE TO GO SLOW BECAUSE, UM, WE WERE KIND OF THE TRAILBLAZERS AND, UM, WE WANTED TO, I MEAN, WE WERE EXCITED TO GET THE PROGRAM OFF, UP AND RUNNING AND LOWER OUR ENVIRONMENTAL IMPACT, BUT WE HAD TO JUGGLE, LIKE, WE DON'T WANT TO MAKE THESE, PUT THESE REQUIREMENTS OUT SO FAST THAT PEOPLE WON'T BE ABLE TO COMPLY WITH THEM.
AND THEN ALL OF A SUDDEN NOW THERE'S A SUPPLY CHAIN ISSUE AND NOBODY CAN USE CONCRETE ON OUR PROJECTS.
SO IT WAS KIND OF A BALANCING ACT AND WE DECIDED, LET'S, LET'S ERR ON THE SLOW SIDE, YOU KNOW, AND THE FIRST STEP BEING, OKAY, EVERYONE, HE'S GONNA, HERE'S LOTS OF NOTICE THAT YOU'RE GONNA HAVE TO START GETTING EP UH, EPDS FOR YOUR MIXES.
WE DON'T CARE WHAT THE NUMBERS ARE, YOU JUST GOTTA HAVE 'EM AND THEN WORK, GO FROM THERE.
AND SO WE MADE A CHOICE TO MAKE IT, TO TAKE A COUPLE OF YEARS TO IMPLEMENT THIS.
UM, BUT, UH, IT'S REALLY UP TO YOU GUYS HOW EXPEDITIOUSLY YOU WANNA LAUNCH IT.
YEAH, AND I'LL JUST JUMP IN AND SHARE THAT, YOU KNOW, SINCE I'VE COME ON BOARD IN THIS ROLE, I'VE BEEN HAVING CONVERSATIONS WITH FOLKS FROM OUR INDUSTRY AND THEY HAVE SHARED ACROSS THE BOARD THAT THEY REALLY APPRECIATED OUR APPROACH.
UM, YOU KNOW, JUST STARTING WITH THAT DISCLOSURE AND THEN IDENTIFYING THAT REGIONAL AVERAGE FOR GLOBAL WARMING POTENTIAL, UM, AND THAT GOING SLOW AND STEADY WAS A KEY ELEMENT FOR THE SUCCESS OF THIS PROGRAM.
UM, I ALSO WANTED TO MENTION SOME OF OUR NEXT STEPS.
UM, YOU KNOW, WE'VE BEEN CHATTING WITH INDUSTRY REPRESENTATIVES ABOUT THE NEED FOR INCREASED CONTRACTOR EDUCATION.
I'VE BEEN RAMPING UP OUR PRESENCE AND SUPPORT OFFERED AT OUR PRE-BID MEETINGS FOR ALL CONSTRUCTION PROJECTS THAT ARE SUBJECT TO THIS REQUIREMENT.
AND WE'RE GONNA CONVENE FOLKS SOMETIME THIS WINTER TO RECONVENE THAT, UM, THAT COMMITTEE AND TO REESTABLISH THE CONVERSATION TO CHAT ABOUT WHAT IT MIGHT LOOK LIKE TO TAKE OUR PROGRAM TO THAT NEXT LEVEL.
BECAUSE THAT INTENT HAD BEEN SET BACK WAY BACK WHEN TO LOWER THAT GLOBAL WARMING POTENTIAL OVER TIME FOR OUR MIXES.
AND WE DON'T WANNA DO ANYTHING TO DRASTICALLY, YOU KNOW, WE WANNA TAKE THESE STEPS SLOWLY BUT SURELY.
AND WE ALSO WANNA EXPLORE REVISITING THAT 50 CUBIC YARD THRESHOLD, BECAUSE IT SOUNDS LIKE DUE TO THE WAY THAT MOBILE MIXERS ARE USED VERSUS OTHER LARGER CONCRETE MIXERS THAT WE COULD LIKELY GET AWAY WITH A THRESHOLD OF EVEN 20 TO 30 CUBIC YARDS.
SO WE'RE HOPING TO BOTH, YOU KNOW, UM, CONTINUE TO REFINE OUR CONCRETE PROGRAM AND TO ALSO EXPAND INTO OTHER MATERIALS LIKE ASPHALT.
UM, SO I'M, I'M VERY EXCITED ABOUT THE NEXT ERA OF LOW CARBON CONCRETE AND LOW EMBODIED CARBON MATERIALS AT THE CITY OF PORTLAND IN GENERAL.
I, I, I CAN'T SEE EVERYBODY ONLINE, SO IF THERE'S ANYBODY ELSE, I'M GONNA GIVE YOU A FEW SECONDS TO POP ON SCREEN AND ASK A QUESTION.
AND IF NOT, WE'LL UM, SAY THANK YOU AND, AND MOVE ON.
UH, YEAH, JUST, I WANTED TO ASK ADDITIONAL QUESTION REGARDING THE FLAG UTILIZING THE RECYCLED MATERIALS.
UM, HAS THERE BEEN ANY PILOT STUDY FOR UTILIZING CRUSHED GLASS AS A PART OF THE SLACK COMPONENT? MY UNDERSTANDING IS THAT, YOU KNOW, WE'RE NOT PRESCRIPTIVE ABOUT WHAT THOSE SUPPLEMENTARY CEMENTITIOUS MATERIALS ARE, UM, BUT JUST THAT THEY MEET THAT GLOBAL WARMING POTENTIAL, UH, OR THAT THEY'RE UNDER
[01:00:01]
THAT THRESHOLD.SO I'LL ASK JOSH, ANDREW, AND LAUREN TO JUMP IN IF THERE'S ANYTHING SPECIFIC ON THAT FRONT.
BUT, UM, THAT WAS ONE OF THE VERY SPECIFIC PIECES OF FEEDBACK THAT I HEARD FROM OUR INDUSTRY IS THAT WE DIDN'T PRESCRIBE WHICH MATERIALS HAD TO BE INCLUDED, JUST THAT THEY ACHIEVED THE GOALS WITHIN SET WITHIN THAT THRESHOLD.
UH, TO ANSWER YOUR QUESTION, NO, THERE WEREN'T ANY PILOT STUDIES DONE ON GLASS, UM, BECAUSE IT'S NOT SOMETHING THAT SUPPLIERS ARE ALREADY STORING IN THEIR SILOS.
AND SO, UM, THEY, YOU KNOW, WE SAID, WE WANT THESE LIMITS, DO WHATEVER YOU WANT TO ACHIEVE THEM.
YOU KNOW, IT'S PROVIDED THE CONCRETE IS OF GOOD QUALITY AND MEETS OTHER SPECIFICATIONS, OF COURSE.
UM, BUT, UH, AND, AND THERE WASN'T, IT WASN'T SOMETHING THEY WANTED TO TRY, SO IT, IT NEVER CAME UP.
UM, I'D BE INTERESTED IN THE DATA FROM A STUDY LIKE THAT, BUT, UM, YOU KNOW, THESE SUPPLIERS ARE, YOU KNOW, WITH THE EXCEPTION OF SWITCHING TO TYPE ONE TWO TO TYPE ONE L CEMENT, UM, WERE, THEY WERE PRETTY MUCH JUST USING STUFF THEY ALREADY HAD IN THEIR CONCRETE, UM, JUST CHANGING PROPORTIONS OUT AND WHATNOT.
UM, AND, AND THAT WAS A, PROBABLY A FINANCIAL DECISION ON THEIR PART.
UM, BUT, UM, WE WOULDN'T BE AGAINST IT IF THEY WANTED TO, BUT NO, IT DIDN'T HAPPEN.
SO WE DON'T HAVE ANY DATA ON IT.
WELL, THANK YOU FOR SHARING THE ADDITIONAL EMAIL ADDRESSES IN THE CHAT.
UM, FEEL FREE TO REACH OUT TO ME WITH ANY QUESTIONS, AND I WOULD LOVE TO CONTINUE THE CONVERSATION AND LEARN MORE ABOUT, YOU KNOW, YOUR PROCESS THAT YOU'RE EMBARKING UPON TO ROLL THIS OUT WITHIN THE CITY OF AUSTIN.
YEAH, THANK YOU VERY MUCH FOR SHARING THIS INFORMATION.
I THINK, UM, WE'RE GONNA, WE'RE GONNA BE TAKING THIS UP DEFINITELY AT THE WORKING GROUP LEVEL TO, UM, TRY TO FIGURE OUT WHAT IT IS THAT WE CAN DO TO HELP, HELP THE CITY PROCESS ALONG HERE.
UM, AND THIS, THIS IS REALLY HELPFUL AND, UM, WE MIGHT FOLLOW UP WITH YOU WITH SOME ADDITIONAL, UH, QUESTIONS AS WE MOVE THROUGH THAT.
SO YOU, YOU PROBABLY HAVEN'T HEARD THE LAST FROM US, SO THANKS TO ALL OF YOU FOR, FOR SHARING YOUR TIME AND EXPERTISE.
WELL, THANK YOU FOR THE INVITE.
[3. Austin’s Urban Forest – Emily King, Development Services Department]
DO WE, AND IT LOOKS LIKE EMILY KING, ARE YOU, UH, READY TO PRESENT ON THE URBAN FOREST DATA? UM, YES, I'M HERE.WAIT, I ALMOST FEEL LIKE I NEED TO STAND UP AND STRETCH.
UM, THAT WAS A LOT OF INFORMATION.
SO I'LL STRETCH IN PLACE AND INTRODUCE MYSELF.
I WORK FOR THE CITY OF AUSTIN.
UM, I AM OUR CITY'S URBAN FORESTER.
I'M HOUSED WITHIN THE DEVELOPMENT SERVICES DEPARTMENT, AND I HAVE A, UM, SMALL UNIT OF STAFF THAT LARGELY, UM, ENGAGES WITH COMMUNITY THROUGH, UM, EDUCATION AND OUTREACH.
WE ALSO SPONSOR A LOT OF COMMUNITY FORESTRY PROJECTS AROUND TOWN.
UM, SO WITH THAT CONTEXT, UM, LET'S SEE.
I HAVE BEEN IN AND AROUND AUSTIN DOING THIS WORK FOR ALMOST 20 YEARS NOW.
SO, UM, I'M DEFINITELY KIND OF A GOOD POINT OF INFORMATION FOR TREE RELATED TOPICS.
I DON'T HAVE ALL OF THE ANSWERS, BUT WHAT I WAS HOPING TO DO TONIGHT WAS, UM, WITHOUT REALLY KNOWING WHAT KIND OF QUESTIONS Y'ALL WERE SEEKING ANSWERS TO, I WANTED TO PROVIDE YOU WITH A REALLY BROAD SWAT OF INFORMATION ABOUT OUR TREE CANOPY AND WHERE YOU MIGHT GO TO FIND OUT MORE INFORMATION.
UM, BECAUSE I, I KIND OF FIGURE IT'S ALREADY A LITTLE BIT AFTER SEVEN, I'M JUST GONNA SKIM THE SURFACE.
UM, SO THAT SAID, LET ME GO AHEAD AND SHARE MY SCREEN.
I AM ALSO NOT USED TO WEBEX, UM, SO I WILL DO MY BEST.
[01:05:01]
RIGHT.UM, GOT THE RED BAR AROUND IT.
I'M GONNA THINK THAT THAT'S GOOD.
AND, AND LIKE THE PREVIOUS PRESENTER, UM, MY WEBEX SCREEN IS NOW TINY, SO IF THERE'S ANY QUESTIONS, Y'ALL JUST, Y'ALL JUST SLOW ME DOWN.
UM, AND, AND SPEAK OUT PLEASE.
UM, SO AGAIN, I'M HERE TO TALK ABOUT THE TREE CANOPY IN AUSTIN.
I'VE GOT KIND OF THREE MAIN AREAS THAT I'M GONNA TOUCH ON.
SOME, UM, HIGH LEVEL STATS ABOUT OUR URBAN FOREST, HOW EQUITY FITS IN, AND A FEW ADDITIONAL TOOLS FOR, UM, MEASURING AND VIEWING DATA ABOUT OUR URBAN FOREST.
SO AGAIN, THIS IS, THIS IS MEANT TO BE BRIEF AND HOPEFULLY IT'SS NOT JUST AN OVERLOAD.
UM, BUT STARTING OUT FIRST I'VE GOT URBAN FOREST STATS.
UM, I HAVE PULLED THIS LOVELY IMAGE FROM TEXAS A AND M FOREST SERVICE.
UM, THE TEXAS A M FOREST SERVICE CONDUCTS, UM, DATA COLLECTION IN SEVERAL CITIES IN TEXAS ON AN ANNUAL BASIS.
AUSTIN IS ONE OF THE CITIES THAT DATA'S COLLECTED ON AND THROUGH THEIR, THE, THE FOREST SERVICES DATA COLLECTION.
THIS IS, THIS IS ON THE GROUNDS PLOT BASED DATA THAT IS COLLECTED.
SO THEY ARE LITERALLY COMING INTO TOWN AND MEASURING TREES ON THE GROUND.