* Water consumption would be a useful tool to guesstimate total population in a given area over a given period of time as one could exclude new water hookups from the data to see if usage/per meter had increased but that also depends on other factors, e.g., upkeep of the property. In California where water rates are higher things like leaky toilets might be fixed regularly but in other areas of the country property owners maybe less likely to make repairs especially where apartment buildings do not have individual meters. Obviously conservation efforts would skew the data as well.
An relevant anecdote. I used to live and work in San Rafael, California. The local college biology department decided to study local water runoff going into the San Francisco Bay. They were getting high e-coli readings inconsistent with their expectations. They began eliminating sources like the local animal shelter and found the high e-coli levels were coming from a creek that ran through some woods and marsh area near downtown . This also happened to be an area where day laborers congregated and had built camps back in the woods. The contamination was from human feces being deposited or washed into the creek and marsh!
In San Diego around this same time frame ( late 80′s) local residents there were reporting illegals living in holes they had dug in the surrounding hillsides. This kind of substandard existence would just not show up on any Pew survey.
* Clever thinking, but you’d have to measure the actual volume of solid waste rather than the total amount of wastewater because low-flow toilets and shower heads have considerably reduced per capita water consumption since the 1990s.
Also, quite a few recent immigrants are from areas where toilet paper isn’t typically used, such as some Muslim countries. It’s tough to say how quickly people’s bottom-wiping habits will assimilate to traditional American norms.
* Perhaps looking at the incidence of measles is the best way to figure out the growth of the illegal alien population. Essentially, no illegal alien is inoculated for measles. Many are carriers. The CDC graph is scary. It suggests that during the Obama Administration the Camp of the Saints has gotten well underway.
* I recently heard a funny story from a coworker who was called in to do water damage restoration in a house that was inhabited by a bunch of foreigners – can’t remember the country, I think it was an African one. Anyway, after investigating the damage and questioning the residents (multiple single males), he determined that they had been shitting in the shower and peeling their vegetables into the toilet, causing all sorts of drainage issues as you can imagine.
* When you have twenty or more cars registered to one single-wide trailer it’s a clue. Solid waste is a clue although some immigrant groups are more used to a casual approach than others (we had to go to the general contractor to make his Guatemalans quit pissing in the corner of the foundation and shitting into the crockpot they brought for their lunch one day. There was two porta-johns thirty feet away but they didn’t want to go into the rain).
My town has an official pop of around 3000. The State Troopers run an unofficial estimate of about 3500 more illegals. More than doubling the official estimate. Now we do have some benefits from that. A murder rate that rivals Chicago. Before they moved here I only knew of people killed through my work. Now I personally have known five murder victims in 10 years. Some are unsolved or classified as ‘suicides’. Other murderers are simply deported. We have what one ER doctor described to me as ‘a DNA nightmare’ regarding the gang rapes where twenty or more take turns at a girl. We have gangs chasing people down the street with machetes.
I personally know they register to vote because they tell me so and at my work with DSHS you are required to ask if they want to regardless of their immigration status you can be fired for not doing so and you take their word for it. There is no mechanism to challenge it even if you know they are illegal. Again you will be fired. Our state knows which way these illegals vote and know how to use and absentee ballot.
We’ve lost several grocery stores but we have two spanking new Mexican groceries where for the right price (and if you know the owner) you can get illegal dairy and meat products like bad cheese and road kill deer sold as ‘goat’ or actual goat as well. Businesses have closed all up and down main street including two book stores, coffee shops, restaurants, clothing stores, and a jewelery shop but now we have a bigger food bank and thrift store attached. The lines stream out the door and down the street when they are distributing food. Plus we have many more dumpster divers.
Neighborhoods have gone from open doors and keys in your car to locked gates and fences. Our white trash meth cookers keep rotti pit mixes to keep the illegals from jacking their stuff at night so where once the loudest sound at night was a guy bringing his truck home from work we get big dogs barking.
Now the ones we get tend to be gang members or thieves so there’s not as much competition for day labor. Guys that used to work at one of the grocery stores, restaurants etc will mow your lawn for ten bucks including the gas to run your mower. They sold their mower they would have pawned stuff first but illegals and tweakers kept breaking into the pawn shop but they were never prosecuted because there was so many other crimes they could feed the police they were always let go. I could go on all day.
The benefits of illegals are endless.