Executive SummaryFall River is one of the oldest towns in the US and as such, has been operating andmaintaining a combined sewer system. Fall River was facing an unfunded ConsentDecree (federal mandate) to keep raw sewage mixed with stormwater out of theirwaterways when it rains and prevent it from spilling into the nearby Mt Hope Bay. Before deploying Ayyeka’s FAI™ platform to enhance the situational awareness withlevel monitoring technology, the city relied on measuring techniques that involvedfield crews and site visits such as reading height markers from a wooden stick, toperiodically sample levels in its wastewater system. Deploying Ayyeka's solution in the collection system has led to a substantialreduction in the city's penalties, greater compliance with EPA regulations, improvedoperational efficiency and overall increased safety of the sewer team.

Fall River, MassachusettsJan/2020

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Fall River Massachusetts

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Fall River is a small city located inMassachusetts. It provides safedrinking water and sewer services to100,000 customers. The city alsooperates more than 230 miles of thedistribution system. The city is one of the oldest towns inthe US and can be traced back to the18th century. Like many old US cities, Fall Riverwas built with a combined sewercollection system that collects bothrain water and sewage. Theinfrastructurewas not equipped todeal with the population increasenor with the heavy rains. The result:daily sewer overflows in the winterseason.

The Partner

Population: 100,000

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19CSO OUTFALLS

Discharged to the Mount Hope Bay

1.3BGALLONS

Currently, the 19 CSO Outfallsdischarge approximately 1.3-billion gallons of rainwater andsewage to the Mount Hope Bayeach year.

160MG

The Regional WastewaterTreatment Plant primarytreatment capacity to 106-million gallons per day.

FALL RIVERIN NUMBERS

86%Construction of the CSOAbatement Program has been anongoing project in the City since1997. Out of the $185 millionprojects, $160 million of the workhas been completed.

4,500 manholes

13-pumpingstations

179-miles of sewer pipeline

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completed

1 RegionalWWTP

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The city deployed Ayyeka FAI™ platform and installed 12 of Ayyeka's Waveletswith hydrostatic level sensors in strategic locations across the city, mainly onthe coastline where the outfalls overflow to the Bay.

The average sewer overflow was1-2ft high and the average timeof the flow was 2-3 hours.In two locations, sewer overflowwas as high as 8ft.

Key Findings

Terry SullivanAdministrator of Community Utilities

From a field maintenanceperspective, batteries have beenreplaced only once in threeyears and Wavelet performancewas excellent.

Delivering Decisions From Field Assets info@ayyeka.com +1 310 876 8040

The Wavelet have picked upnumerous of CSOs throughoutthe year and alerted all teamsdealing with sewage andrainstorms.

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AYYEKA'S DATA

12Wa v e l e t s h a v e b e e nd e p l o y e d a c r o s s t h eMo u n t H o p e B a y .

3 Wa v e l e t s h a v e b e e nr e l o c a t e d n u me r o u st i me s t o me e t t h et e a ms ' c h a n g i n gn e e d s

3Hydrostatic

Sensors used

Average overflow was 1.5ft high

Data transmitted safely (with cyber-security) to team'smobile devices

Improved situational awarenessEnhanced efficiencyBetter regulation compliance practiceReduced risk

THE CITY GAINED:1.2.3.4.